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XC6401 Series
Dual LDO Regulators, Low ESR Cap. Compatible
ETR0309_005
GENERAL DESCRIPTION
The XC6401 series are highly accurate, Dual, low noise, CMOS LDO voltage regulators. Performance features of the series includes low output noise, high ripple rejection ratio, low dropout and very fast turn-on times. The XC6401 includes a reference voltage source, error amplifiers, driver transistors, current limiters and phase compensators internally. The XC6401's current limiters' foldback circuit also operates as a short protect for the output current limiter. The output voltage for each regulator is set independently by laser trimming. Voltages are selectable in 50mV steps within a range of 0.8V to 5.0V. The XC6401 series is also fully compatible with low ESR ceramic capacitors, reducing cost and improving output stability. This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of frequencies. The EN function allows the output of each regulator to be turned off independently, resulting in greatly reduced power consumption. The XC6401 series is available in the SOT-26W or USP-6B, USP-6C `chip-scale' package.
APPLICATIONS
Mobile Phones Cordless phones and radio communication equipment Portable games Cameras, Video recorders Portable Audio Equipment PDAs
FEATURES
Maximum Output Current Dropout Voltage Operating Voltage Range Output Voltage Range Highly Accurate Low Power Consumption Standby Current High Ripple Rejection : More than 150mA (300mA limit) : 100mV @100mA : 1.5V ~ 6.0V : 0.8V~5.0V (50mV increments) : 2% (VOUT>1.5V) : 30mV (VOUT1.5V) : 25A (TYP.) : Less than 0.1A (TYP.) : 70dB @1kHz
Operating Temperature Range : -40 ~ +85 Low ESR Capacitor Compatible : Ceramic capacitor Low Output Noise Ultra Small Packages : SOT-26W,USP-6B,USP-6C
TYPICAL APPLICATION CIRCUITS TYPICAL PERFORMANCE CHARACTERISTICS SOT-26W
EN1 VOUT1
Interactive Load Transient Response
6 CL1 1uF
1 2
VIN EN2
VSS VOUT2
5
CIN 1uF 4 3 CL2 1uF
USP-6
1 2 CIN 1uF 3
EN2 VOUT2 VIN VOUT1 EN1 VSS
6 5 4 CL1 1uF CL2 1uF
1/24
XC6401 Series
PIN CONFIGURATION
VOUT1 6 6 VSS 5 VOUT2 4
1 EN1
2 VIN SOT-26W (TOP VIEW)
3 EN2
USP-6B / 6C (BOTTOM VIEW)
*The dissipation pad for the USP-6B/C packages should be solder-plated in recommended mount pattern and metal masking so as to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the VSS pin.
PIN ASSIGNMENT
PIN NUMBER SOT-26W USP-6B/C 1 3 2 2 3 1 4 6 5 4 6 5 PIN NAME EN1 VIN EN2 VOUT2 VSS VOUT1 FUNCTION ON/OFF Control 1 Power Input ON/OFF Control 2 Output 2 Ground Output 1
PRODUCT CLASSIFICATION
Selection Guide
The following options for the Regulator 1, 2, the EN pin logic, internal pull-up / down are available.
Ordering Information
XC6401 DESIGNATOR DESCRIPTION Regulator1, EN type SYMBOL E F G H E F G H 01~ M Packaging Types D E Device Orientation R L DESCRIPTION : High Active with pull-down resistor : High Active with no pull-down resistor : Low Active with pull-up resistor : Low Active with no pull-up resistor : High Active with pull-down resistor : High Active with no pull-down resistor : Low Active with pull-up resistor : Low Active with no pull-up resistor : Internally set sequential number relating output voltage of each regulators Regulator 1 Output Voltage Range: 0.8 ~ 5.0 V (50mV increments) Regulator 2 Output Voltage Range: 0.8 ~ 5.0 V (50mV increments) : SOT-26W : USP-6B : USP-6C : Embossed tape, standard feed : Embossed tape, reverse feed
Regulator2, EN type
Output Voltage
2/24
XC6401
Series
ABSOLUTE MAXIMUM RATINGS
PARAMETER Input Voltage Output Current Output Voltage EN Pin Voltage SOT-26W Power Dissipation USP-6B USP-6C Operating Temperature Range Storage Temperature Range
* Sum of IOUT1 and IOUT2. ** Pd=(VIN-VOUT1)xIOUT1+(VIN-VOUT2)xIOUT2
Ta = 25 RATINGS 6.5 700 VSS -0.3 ~ VIN +0.3 VSS -0.3 ~ 6.5 250 100 100 -40 ~ +85 -55 ~ +125 UNITS V mA V V mW
SYMBOL VIN IOUT1 + IOUT2 VOUT VEN Pd Topr Tstg
ELECTRICAL CHARACTERISTICS
XC6401FFxx Regulator 1, Regulator 2 PARAMETER Output Voltage (*3) Maximum Output Current Load Regulation Dropout Voltage Supply Current Standby Current Line Regulation (*7) Input Voltage Output Voltage SYMBOL VOUT (E) IOUTMAX VOUT Vdif1 Vdif2 ISS ISTB VOUT VIN
Ta=25 CONDITIONS VIN=VOUT (T) + 1.0V IOUT=30mA VIN=VOUT (T) + 1.0V 1mAIOUT100mA IOUT=30mA IOUT=100mA VIN=VEN=VOUT (T) + 1.0V, IOUT=0mA VIN=VOUT (T) + 1.0V, VEN=VSS VOUT(T)+1.0VVIN6.0V VEN=VIN, IOUT=30mA IOUT=30mA -40Topr85 VIN=[VOUT(T)+1.0]VDC+0.5Vp-pAC IOUT=30mA, f=1kHz VIN=VOUT (T) + 1.0V, VEN=VIN VIN=VOUT (T) + 1.0V, VEN=VIN MIN. 0.98 150 TYP. VOUT(T) 15 E-1 E-2 1.5 1.30 VIN=VEN=VOUT (T) + 1.0V VIN= VOUT (T) + 1.0V, VEN=VSS -0.10 -0.10 25 0.01 0.01 100 70 300 30 45 0.10 0.20 6.0 6.0 0.25 0.10 0.10 MAX. 1.02 60 UNITS V mA mV mV mV A A %/V V ppm/ dB mA mA V V A A CIRCUIT 1 1 1 1 2 3 1 1 5 1 1 4 4 4 4
VOUT
VIN VOUT
Temperature Characteristics Topr VOUT Ripple Rejection Rate(*8) Current Limiter Short-Circuit Current EN "High" Voltage EN "Low" Voltage EN "High" Current EN "Low" Current
NOTE
PSRR Ilim Ishort VENH VENL IENH IENL
*1: VOUT(T)=Specified output voltage *2: VOUT(E)=Effective output voltage (I.e. the output voltage when "VOUT(T)1.0V" is provided at the VIN pin while maintaining a certain IOUT value). *3: If VOUT (T)1.45V, MIN VOUT (T) - 30mV, MAX VOUT (T) + 30mV (*6) (*5) *4: Vdif={VIN1 -VOUT1 } *5: VOUT1=A voltage equal to 98% of the output voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input. *6: VIN1=the input voltage when VOUT1 appears as input voltage is gradually decreased. *7: When VOUT(T)>4.5V, 5.5V4.8V, VIN=5.75VDC+0.5Vp-pAC *9: Unless otherwise stated, VIN=VOUT(T)+1.0V
3/24
XC6401 Series
ELECTRICAL CHARACTERISTICS (Continued)
Dropout Voltage SETTING OUTPUT VOLTAGE (V) VOUT(T) 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.65 1.70 1.75 1.80 1.85 1.90 1.95 2.00 2.05 2.10 2.15 2.20 2.25 2.30 2.35 2.40 2.45 2.50 2.55 2.60 2.65 2.70 2.75 2.80 2.85 2.90 2.95 DETECT VOLTAGE (V) VOUT MIN. 0.770 0.820 0.870 0.920 0.970 1.020 1.070 1.120 1.170 1.220 1.270 1.320 1.370 1.420 1.470 1.519 1.568 1.617 1.666 1.715 1.764 1.813 1.862 1.911 1.960 2.009 2.058 2.107 2.156 2.205 2.254 2.303 2.352 2.401 2.450 2.499 2.548 2.597 2.646 2.695 2.744 2.793 2.842 2.891 MAX. 0.830 0.880 0.930 0.980 1.030 1.080 1.130 1.180 1.230 1.280 1.330 1.380 1.430 1.480 1.530 1.581 1.632 1.683 1.734 1.785 1.836 1.887 1.938 1.989 2.040 2.091 2.142 2.193 2.244 2.295 2.346 2.397 2.448 2.499 2.550 2.601 2.652 2.703 2.754 2.805 2.856 2.907 2.958 3.009 E-1 DROPOUT VOLTAGE 1 (mV) Vdif 1 TYP. MAX. 300 200 100 80 65 60 55 700 600 500 400 300 200 100 E-2 DROPOUT VOLTAGE 2 (mV) Vdif 2 TYP. MAX. 400 350 270 240 200 180 165 800 700 600 500 400 300 250
50
75
150
200
45
65
140
180
40
60
120
170
35
55
110
160
4/24
XC6401
Series
DROPOUT VOLTAGE CHART (Continued)
Dropout Voltage (Continued) SETTING OUTPUT VOLTAGE (V) VOUT(T) 3.00 3.05 3.10 3.15 3.20 3.25 3.30 3.35 3.40 3.45 3.50 3.55 3.60 3.65 3.70 3.75 3.80 3.85 3.90 3.95 4.00 4.05 4.10 4.15 4.20 4.25 4.30 4.35 4.40 4.45 4.50 4.55 4.60 4.65 4.70 4.75 4.80 4.85 4.90 4.95 5.00 DETECT VOLTAGE (V) VOUT MIN. 2.940 2.989 3.038 3.087 3.136 3.185 3.234 3.283 3.332 3.381 3.430 3.479 3.528 3.577 3.626 3.675 3.724 3.773 3.822 3.871 3.920 3.969 4.018 4.067 4.116 4.165 4.214 4.263 4.312 4.361 4.410 4.459 4.508 4.557 4.606 4.655 4.704 4.753 4.802 4.851 4.900 MAX. 3.060 3.111 3.162 3.213 3.264 3.315 3.366 3.417 3.468 3.519 3.570 3.621 3.672 3.723 3.774 3.825 3.876 3.927 3.978 4.029 4.080 4.131 4.182 4.233 4.284 4.335 4.386 4.437 4.488 4.539 4.590 4.641 4.692 4.743 4.794 4.845 4.896 4.947 4.998 5.049 5.100 E-1 DROPOUT VOLTAGE 1 (mV) Vdif 1 TYP. MAX. E-2 DROPOUT VOLTAGE 2 (mV) Vdif 2 TYP. MAX.
30
45
100
150
5/24
XC6401 Series
OPERATIONAL EXPLANATION
Output Voltage Control The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The P-channel MOSFETs, which are connected to the VOUT1 and VOUT2 pins, are then driven by the subsequent output signal. The output voltages at the VOUT1 and VOUT2 pins are controlled and stabilized by a system of negative feedback. The current limit circuit and short protect circuit operate in relation to the level of output current. Further, the IC's internal circuitry can be shutdown via the EN pin's signal.
EN1
ON/OFF Control
+
Error Amp1
Current Limit
VOUT1
VR1 each circuit R11
R12
VIN
VSS
+
VR2 each circuit Voltage Reference Error Amp2 Current Limit
VOUT2
R21
EN2
ON/OFF Control
R22
Low ESR Capacitors With the XC6401 series, a stable output voltage is achievable even if used with low ESR capacitors as a phase compensation circuit is built-in. In order to ensure the effectiveness of the phase compensation, we suggest that output capacitors (CL1, CL2) is connected as close as possible to the output pins (VOUT1 and VOUT2) and the VSS pin. Please use an output capacitor with a capacitance value of at least 1F. Also, please connect an input capacitor (CIN) of 1F between the VIN pin and the VSS pin in order to ensure a stable power input. Current Limiter, Short-Circuit Protection The XC6401 series includes a combination of a fixed current limiter circuit & a foldback circuit which aid the operations of the current limiter and circuit protection. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. As a result of this drop in output voltage, the foldback circuit operates, output voltage drops further and output current decreases. When the output pin is shorted, a current of about 30mA flows. EN Pins The IC's internal circuitry can be shutdown via the signal from the EN1 and EN2 pins with the XC6401 series. In shutdown mode, output at the VOUT1 and VOUT2 pins will be pulled down to the VSS level via R11 & R12 and R21 & R22. The operational logic of the IC's EN1 and EN2 pins are selectable (please refer to the selection guide). Note that as the standard XC6401FF type's regulator 1 and 2 are both ' High Active/No Pull Down', operations will become unstable with the EN1 or EN2 pins open. Although the EN1 and EN2 pins are equal to an inverter input with CMOS hysteresis, with either the pull-up or pull-down options, the EN1 and EN2 pins input current will increase when the IC is in operation. We suggest that you use this IC with either a VIN voltage or a VSS voltage input at the EN1 and EN2 pins. If this IC is used with the correct specifications for the EN1 and EN2 pins, the operational logic is fixed and the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry.
NOTES ON USE
1. Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be exceeded. 2. Where wiring impedance is high, operations may become unstable due to noise and/or phase lag depending on output current. Please keep the resistance low between VIN and VSS wiring in particular. 3. Please wire the input capacitor (CIN) and the output capacitors (CL1, CL2) as close to the IC as possible.
6/24
XC6401
Series
TEST CIRCUITS
Circuit
CIN, CL1, CL2 : 1F(ceramic) VIN EN1 VOUT1
A
CL1 IOUT1 RL1
V
CIN
V
EN2
EN1/EN2 : High Active = EN=VIN Low Active = EN=VSS
VOUT2
A
CL2 IOUT2 RL2
VSS
V
Circuit
EN1/EN2 : 1. High Active with pull-down resistor built-in VR1 Supply Current ISS1=I1 (Note:EN1=ON, EN2=OFF) VR2 Supply Current ISS2=I1 (Note:EN1=OFF, EN2=ON) 2. High Active with no pull-down resistor built-in VR1 Supply Active Current ISS1=I1 (Note:EN1=ON, EN2=OFF) VR2 Supply Current ISS2=I1 (Note:EN1=OFF, EN2=ON) 3. Low Active with pull-up resistor built-in VR1 Supply Current ISS1=I1+I2 (Note:EN1=ON, EN2=OFF) VR2 Supply Current ISS2=I1+I3 (Note:EN1=OFF, EN2=ON) 4. Low Active with no pull-up resistor built-in VR1 Supply Current ISS1=I1 (Note:EN1=ON, EN2=OFF) VR2 Supply Current ISS2=I1 (Note:EN1=OFF, EN2=ON)
Circuit
EN1/EN2: High Active = EN= VSS Low Active = EN= VIN
7/24
XC6401 Series
TEST CIRCUITS (Continued)
Circuit
Circuit
EN1/EN2 : High Active = EN=VIN Low Active = EN=VSS
8/24
XC6401
Series
TYPICAL PERFORMANCE CHARACTERISTICS
(1) Output Voltage vs. Output Current
XC6401 (0.8V)
1.0 VIN=1.8V CIN=1uF (ceramics), CL=1uF (ceramics) 1.0
XC6401(0.8V)
VIN=4.0V CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage VOUT (V)
Output Voltage VOUT (V)
0.8 Topr = 85OC = 25OC = - 40OC
0.8 VIN = = = = 6.0V 1.8V 1.8V 1.5V
0.6
0.6
0.4
0.4
0.2
0.2
0.0 0 50 100 150 200 250 300 Output Current IOUT (mA) 350
0.0 0 50 100 150 200 250 300 Output Current IOUT (mA) 350
XC6401(2.85V)
4.0 3.5 Output Voltage VOUT (V) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 50 100 150 200 250 300 350 Topr = 85OC = 25OC = - 40OC Output Voltage VOUT (V) VIN=3.85V CIN=1uF (ceramics), CL=1uF (ceramics) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 50
XC6401(2.85V)
VIN=4.0V CIN=1uF (ceramics), CL=1uF (ceramics)
VIN = 6.0V = 4.0V = 3.15V
100
150
200
250
300
350
Output Current IOUT (mA)
Output Current IOUT (mA)
XC6401(3.0V)
4.0 3.5 Output Voltage VOUT (V) Output Voltage VOUT (V) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 50 100 150 200 250 300 350 Output Current IOUT (mA) Topr = 85OC = 25OC = - 40OC VIN=4.0V CIN=1uF (ceramics), CL=1uF (ceramics) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 50
XC6401(3.0V)
VIN=4.0V CIN=1uF (ceramics), CL=1uF (ceramics)
VIN = 6.0V = 4.0V = 3..3V
100 150 200 250 300 Output Current IOUT (mA)
350
9/24
XC6401 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(1) Output Voltage vs. Output Current (Continued)
XC6401(5.0V)
6.0 5.0 Output Voltage VOUT (V) Output Voltage VOUT (V) 4.0 3.0 2.0 1.0 0.0 0 50 100 150 200 250 300 Output Current IOUT (mA) 350 VIN=6.0V CIN=1uF (ceramics), CL=1uF (ceramics) 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 50 100 150 200 250 300 350 Output Current IOUT (mA) VIN = 6.0V = 5.3V
XC6401(5.0V)
VIN=4.0V CIN=1uF (ceramics), CL=1uF (ceramics)
Topr = 85OC = 25OC = - 40OC
(2) Output Voltage vs. Input Voltage
XC6401(0.8V)
Topr = 25OC CIN=1uF (ceramics), CL=1uF (ceramics) IOUT = 0mA = 30mA = 100mA
XC6401(0.8V)
0.90 Topr = 25OC CIN=1uF (ceramics), CL=1uF (ceramics)
1.2 1.1 Output Voltage VOUT (V) 1.0 0.9 0.8 0.7 0.6 0.5 0.5
Output Voltage VOUT (V)
0.85
0.80
0.75
IOUT = 0mA = 30mA = 100mA
0.70
0.65 1.0 1.5 2.0 2.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Input Voltage VIN (V) Input Voltage VIN (V)
XC6401(2.85V)
3.05 Topr = 25OC CIN=1uF (ceramics), CL=1uF (ceramics) 2.95
XC6401(2.85V)
Topr = 25OC CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage VOUT (V)
2.65 IOUT = 0mA = 30mA = 100mA
Output Voltage VOUT (V)
2.85
2.90
2.85 IOUT = 0mA = 30mA = 100mA
2.45
2.80
2.25
2.75
2.05 2.35
2.70 2.85 Input Voltage VIN (V) 3.35 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Input Voltage VIN (V)
10/24
XC6401
Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(2) Output Voltage vs. Input Voltage (Continued)
XC6401(3.0V)
3.2 Topr = 25OC CIN=1uF (ceramics), CL=1uF (ceramics) 3.10
XC6401(3.0V)
Topr = 25OC CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage VOUT (V)
Output Voltage VOUT (V)
3.0
3.05
2.8 IOUT = 0mA = 30mA = 100mA
3.00 IOUT = 0mA = 30mA = 100mA
2.6
2.95
2.4
2.90
2.2 2.5 3.0 Input Voltage VIN (V) 3.5
2.85 3.5 4.0 4.5 5.0 5.5 6.0 Input Voltage VIN (V)
XC6401(5.0V)
5.2 Topr = 25OC CIN=1uF (ceramics), CL=1uF (ceramics) 5.10
XC6401(5.0V)
Topr = 25OC CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage VOUT (V)
4.8 IOUT = 0mA = 30mA = 100mA
Output Voltage VOUT (V)
5.0
5.05
5.00 IOUT = 0mA = 30mA = 100mA
4.6
4.95
4.4
4.90
4.2 4.5 5.0 Input Voltage VIN (V) 5.5
4.85 5.5 Input Voltage VIN (V) 6.0
(3) Dropout Voltage vs. Output Current
XC6401(0.8V)
1.0 CIN=1uF (ceramics), CL=1uF (ceramics) 0.5
XC6401(2.85V)
CIN=1uF (ceramics), CL=1uF (ceramics)
Dropout Voltage Vdif (V)
Dropout Voltage Vdif (V)
0.8
Topr = 85OC = 25OC = - 40OC
0.4 Topr = 85OC = 25OC = - 40OC
0.6
0.3
0.4
0.2
0.2
0.1
0.0 0 50 100 150 200 Output Current IOUT (mA)
0.0 0 50 100 150 200 Output Current IOUT (mA)
11/24
XC6401 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(3) Dropout Voltage vs. Output Current (Continued)
XC6401(3.0V)
0.5 CIN=1uF (ceramics), CL=1uF (ceramics) 0.5
XC6401(5.0V)
CIN=1uF (ceramics), CL=1uF (ceramics)
Dropout Voltage Vdif (V)
Dropout Voltage Vdif (V)
0.4
Topr = 85OC = 25OC = - 40OC
0.4
0.3
0.3
Topr = 85OC = 25OC = - 40OC
0.2
0.2
0.1
0.1
0.0 0 50 100 150 200 Output Current IOUT (mA)
0.0 0 50 100 150 200 Output Current IOUT (mA)
(4) Supply Current vs. Input Voltage
XC6401(0.8V)
100 Topr = 85OC = 25OC = - 40OC 100 Topr = 85OC = 25OC = - 40OC
XC6401(2.85V)
Supply Current ISS (uA)
60
Supply Current ISS (uA)
80
80
60
40
40
20
20
0 0 1 2 3 4 5 6 Input Voltage VIN (V)
0 0 1 2 3 4 5 6 Intput Voltage VIN (V)
XC6401(3.0V)
100 Topr = 85OC = 25OC = - 40OC 100
XC6401(5.0V)
80 Supply Current ISS (uA)
60
Supply Current ISS (uA)
80
60 Topr = 85OC = 25OC = - 40OC
40
40
20
20
0 0 1 2 3 4 Input Voltage VIN (V) 5 6
0 0 1 2 3 4 5 6 Input Voltage VIN (V)
12/24
XC6401
Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(5) Output Voltage vs. Ambient Temperature
XC6401(0.8V)
0.84 VIN = 1.8V CIN=1uF (ceramics), CL=1uF (ceramics) 2.95 VIN = 4.0V CIN=1uF (ceramics), CL=1uF (ceramics)
XC6401(2.85V)
Output Voltage VOUT (V)
Output Voltage VOUT (V)
0.82
2.90
0.80 IOUT = 0mA = 10mA = 30mA = 100mA
2.85
0.78
2.80
IOUT = 0mA = 10mA = 30mA = 100mA
0.76 -50 -25 0 25 50 75 100 Ambient Temperature Topr (OC)
2.75 -50 -25 0 25 50 75 100 Ambient Temperature Topr (OC)
XC6401(3.0V)
VIN = 4.0V CIN=1uF (ceramics), CL=1uF (ceramics) 5.20
XC6401(5.0V)
VIN = 5.0V CIN=1uF (ceramics), CL=1uF (ceramics)
3.10
Output Voltage VOUT (V)
3.05
3.00
Output Voltage VOUT (V)
5.10
2.95
IOUT = 0mA = 10mA = 30mA = 100mA
5.00 IOUT = 0mA = 10mA = 30mA = 100mA
4.90
2.90 -50 -25 0 25 50 75 100 Ambient Temperature Topr (OC)
4.80 -50 -25 0 25 50 75 100 Ambient Temperature Topr (OC)
(6) Supply Current vs. Ambient Temperature
XC6401(0.8V)
VIN = 1.8V 30 30
XC6401(2.85V)
VIN = 3.85V
Supply Current IDD ( A)
28 Supply Current IDD ( A) -50 -25 0 25 50 75 100
28
26
26
24
24
22
22
20 Ambient Temperature Topr (OC)
20 -50 -25 0 25 50 75 Ambient Temperature Topr (OC) 100
13/24
XC6401 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(6) Supply Current vs. Ambient Temperature (Continued)
XC6401(3.0V)
VIN = 4.0V 30 30
XC6401(5.0V)
VIN = 6.0V
Supply Current IDD ( A)
26
Supply Current IDD ( A) -50 -25 0 25 50 75 100
28
28
26
24
24
22
22
20 Ambient Temperature Topr (OC)
20 -50 -25 0 25 50 75 Ambient Temperature Topr (OC) 100
14/24
XC6401
Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(7) Input Transient Response
XC6401(0.8V)
1.00 0.95 Output Voltage VOUT (V) 0.90 0.85 0.80 Output Voltage 0.75 0.70 Time (200usec/div) -1 -2 Input Voltage tr=tf=5use CL=1uF (ceramics), IOUT=100uA 4 3 Output Voltage VOUT (V) Input Voltage VIN (V) 2 1 0 1.00 0.95 0.90 0.85 0.80 Output Voltage 0.75 0.70 Time (40usec/div) -1 -2 Input Voltage
XC6401(0.8V)
tr=tf=5use CL=1uF (ceramics), IOUT=30mA 4 3 2 1 0 Input Voltage VIN (V) Input Voltage VIN (V) Input Voltage VIN (V)
XC6401(0.8V)
1.00 0.95 Output Voltage VOUT (V) 0.90 0.85 0.80 Output Voltage 0.75 0.70 Time (40usec/div) -1 -2 Input Voltage tr=tf=5use CL=1uF (ceramics), IOUT=100mA 4 3 Output Voltage VOUT (V) Input Voltage VIN (V) 2 1 0 3.05 3.00 2.95 2.90 2.85
XC6401(2.85V)
tr=tf=5use CL=1uF (ceramics), IOUT=100uA 6 5 Input Voltage 4 3 2 Output Voltage 2.80 2.75 Time (200usec/div) 1 0
XC6401(2.85V)
tr=tf=5use CL=1uF (ceramics), IOUT=30mA
XC6401(2.85V)
tr=tf=5use CL=1uF (ceramics), IOUT=100mA
3.05 3.00 Output Voltage VOUT (V) 2.95 2.90 2.85
6 5
3.05 3.00 Output Voltage VOUT (V) Input Voltage VIN (V) 2.95 2.90 2.85 2.80 2.75
6 5
Input Voltage
4 3 2
Input Voltage
4 3 2
Output Voltage 2.80 2.75 Time (40usec/div) 1 0
Output Voltage
1 0
Time (40usec/div)
15/24
XC6401 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(7) Input Transient Response (Continued)
XC6401(3.0V)
3.20 3.15 Output Voltage VOUT (V) 3.10 3.05 3.00 Output Voltage 2.95 2.90 Time (200usec/div) 1 0 Input Voltage tr=tf=5use CL=1uF (ceramics), IOUT=100uA 6 5 Input Voltage VIN (V) 4 3 2 Input Voltage VIN (V) 3.20 3.15 Input Voltage 3.10 3.05 3.00 Output Voltage 2.95 2.90 Time (40usec/div) 1 0 4 3 2
tr=tf=5use CL=1uF (ceramics), IOUT=30mA
XC6401(3.0V)
6 5 Input Voltage VIN (V) Input Voltage VIN (V) Input Voltage VIN (V)
XC6401(3.0V)
3.20 3.15 Output Voltage VOUT (V) 3.10 3.05 3.00 Output Voltage 2.95 2.90 Time (40usec/div) 1 0 Input Voltage tr=tf=5use CL=1uF (ceramics), IOUT=100mA 6 5 Output Voltage VOUT (V) Input Voltage VIN (V) 4 3 2 5.20 5.15 5.10 5.05 5.00
XC6401(5.0V)
tr=tf=5use CL=1uF (ceramics), IOUT=100uA 8 7 Input Voltage 6 5 4 Output Voltage 4.95 4.90 Time (200usec/div) 3 2
XC6401(5.0V)
tr=tf=5use CL=1uF (ceramics), IOUT=30mA
XC6401(5.0V)
tr=tf=5use CL=1uF (ceramics), IOUT=100mA 5.20 5.15 Output Voltage VOUT (V) Input Voltage VIN (V) 5.10 5.05 5.00 Output Voltage 4.95 4.90 Time (40usec/div) 3 2 Input Voltage 8 7 6 5 4
5.20 Output Voltage VOUT (V) 5.15 5.10 5.05 5.00
8 7
Input Voltage
6 5 4
Output Voltage 4.95 4.90 Time (40usec/div) 3 2
16/24
XC6401
Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(8) Load Transient Response
XC6401(0.8V)
0.90 VIN=1.8V, tr=tf=5use CIN=CL=1uF (ceramics) 250 0.90
XC6401(0.8V)
VIN=1.8V, tr=tf=5use CIN=CL=1uF (ceramics) 250
Output Current IOUT (mA)
Output Voltage VOUT (V)
Output Voltage 0.70 150
Output Voltage 0.70
100m A
150
0.60 Output Current 0.50
50m A 10m A
100
0.60
100 Output Current
50
0.50
10m A
50
0.40 Time (40usec/div)
0
0.40 Time (40usec/div)
0
XC6401(2.85V)
2.95 VIN=4.0V, tr=tf=5use CIN=CL=1uF (ceramics) 250 2.95
XC6401(2.85V)
VIN=4.0V, tr=tf=5use CIN=CL=1uF (ceramics) 250
Output Current IOUT (mA)
Output Voltage 2.75 150
2.75
100m A
Output Voltage
150
2.65
50m A
100 Output Current 50
10m A
2.65 Output Current 2.55
10m A
100
2.55
50
2.45 Time (40usec/div)
0
2.45 Time (40usec/div)
0
XC6401(3.0V)
VIN=4.0V, tr=tf=5use CIN=CL=1uF (ceramics)
XC6401(3.0V)
VIN=4.0V, tr=tf=5use CIN=CL=1uF (ceramics)
3.10
250
3.10
250
Output Current IOUT (mA)
Output Voltage VOUT (V)
Output Voltage VOUT (V)
Output Voltage 2.90 150
Output Voltage 2.90
100m A
150
2.80
50m A
100 Output Current 50
2.80 Output Current
10m A
100
2.70
10m A
2.70
50
2.60 Time (40usec/div)
0
2.60 Time (40usec/div)
0
Output Current IOUT (mA)
3.00
200
3.00
200
Output Current IOUT (mA)
Output Voltage VOUT (V)
Output Voltage VOUT (V)
2.85
200
2.85
200
Output Current IOUT (mA)
Output Voltage VOUT (V)
0.80
200
0.80
200
17/24
XC6401 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(8) Load Transient Response (Continued)
XC6401(5.0V)
5.10 VIN=6.0V, tr=tf=5use CIN=CL=1uF (ceramics) 250 5.10
XC6401(5.0V)
VIN=6.0V, tr=tf=5use CIN=CL=1uF (ceramics) 250
Output Current IOUT (mA)
Output Voltage VOUT (V)
Output Voltage VOUT (V)
Output Voltage 4.90 150
Output Voltage 4.90
100m A
150
4.80 Output Current 4.70
50m A
100
4.80
100 Output Current
50
4.70
10m A
50
10m A
4.60
0
4.60 Time (40usec/div)
0
Time (40usec/div)
18/24
Output Current IOUT (mA)
5.00
200
5.00
200
XC6401
Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(9) Ripple Rejection Rate
XC6401(0.8V)
80 Ripple Rejection Rate RR (dB) VIN=1.8V DC+0.5Vp-pAC IOUT=30mA, CL=1uF (ceramics) 80
XC6401(2.85V)
VIN=3.85V DC+0.5Vp-pAC IOUT=30mA, CL=1uF (ceramics)
Ripple Rejection Rate RR (dB)
60
60
40
40
20
20
0 0.01
0.1
1
10
100
0 0.01
0.1
1
10
100
Ripple Frequency f (kHz)
Ripple Frequency f (kHz)
XC6401(3.0V)
VIN=4.0V DC+0.5Vp-pAC IOUT=30mA, CL=1uF (ceramics)
XC6401(5.0V)
80 VIN=5.75V DC+0.5Vp-pAC IOUT=30mA, CL=1uF (ceramics)
80 Ripple Rejection Rate RR (dB)
Ripple Rejection Rate RR (dB)
60
60
40
40
20
20
0 0.01
0.1
1
10
100
0 0.01
0.1
1
10
100
Ripple Frequency f (kHz)
Ripple Frequency f (kHz)
(10) Cross Talk
XC6401 (VR1:3.0V, VR2:2.85V)
VIN=4.0V, CIN= CL=1uF (ceramics) 3.1
VR1 Output Voltage (3.0V)
500
2.9
VR2 Output Voltage (2.85V) VR1 Output Current
300
2.8
100m A
200
2.7
10m A
100
2.6 Time (40usec/div)
0
Output Current 1 IOUT (mA)
Output Voltage VOUT (V)
3.0
400
19/24
XC6401 Series
PACKAGING INFORMATION
SOT-26W
USP-6B
20/24
XC6401
Series
PACKAGING INFORMATION (Continued)
USP-6C
21/24
XC6401 Series
PACKAGING INFORMATION (Continued)
USP-6B Recommended Pattern Layout USP-6B Recommended Metal Mask Design
USP-6C Recommended Pattern Layout
USP-6C Recommended Metal Mask Design
22/24
XC6401
Series
MARKING RULE
SOT-26W
6

Represents product series MARK PRODUCT SERIES XC6401xxxxMx
4
5
1
Represents internally set sequential number ex.)
1
2
SOT-26W
3
MARK C C 0 1 2 0 1 8
INTERNALLY SET SEQUENTIAL NUMBER C2 C0 01 18
PRODUCT SERIES XC6401EED5 XC6401EED6 XC6401FF36 XC6401FF37
(TOP VIEW)
Represents production lot number 0 to 9, A to Z reverse character 0 to 9, A to A repeated (G, I, J, O, Q, W excepted). USP-6B, USP-6C Represents product series MARK 1 Represents type of VR1 regulator MARK B E F Z H K L M N OPTIONAL FUNCTIONS EN1: High Active with no pull-down resistor EN1: High Active with pull-down resistor, High speed EN1: High Active with no pull-down resistor, High speed EN1: Low Active with pull-up resistor, High speed EN1: Low Active with no pull-up resistor, High speed EN1: High Active with pull-down resistor, Low power consumption EN1: High Active with no pull-down resistor, Low power consumption EN1: Low Active with pull-up resistor, Low power consumption EN1: Low Active with no pull-up resistor, Low power consumption PRODUCT SERIES XC6401Bxxxxx XC6401Exxxxx XC6401Fxxxxx XC6401Gxxxxx XC6401Hxxxxx XC6401Kxxxxx XC6401Lxxxxx XC6401Mxxxxx XC6401Nxxxxx PRODUCT SERIES XC6401xxxxxx
USP-6B (TOP VIEW)
1 2 3
6 5 4
USP-6C (TOP VIEW)
Represents type of VR2 regulator MARK B E F Z H K L M N OPTIONAL FUNCTIONS PRODUCT SERIES EN1: High Active with no pull-down resistor XC6401xBxxxx EN1: High Active with pull-down resistor, High speed XC6401xExxxx EN1: High Active with no pull-down resistor, High speed XC6401xFxxxx EN1: Low Active with pull-up resistor, High speed XC6401xGxxxx EN1: Low Active with no pull-up resistor, High speed XC6401xHxxxx EN1: High Active with pull-down resistor, Low power consumption XC6401xKxxxx EN1: High Active with no pull-down resistor, Low power consumption XC6401xLxxxx EN1: Low Active with pull-up resistor, Low power consumption XC6401xMxxxx EN1: Low Active with no pull-up resistor, Low power consumption XC6401xNxxxx
Represents VR output voltage (serial number ex.) MARK 0 0 1 2 OUTPUT VOLTAGE VR1 (V) VR2 (V) 2.85 2.10 2.85 2.85 PRODUCT SERIES XC6401xx01xx XC6401xx02xx
Represents production lot number 0 to 9, A to Z repeated (G, I, J, O, Q, W excepted) Note: No character inversion used
23/24
XC6401 Series
1. The products and product specifications contained herein are subject to change without notice to improve performance characteristics. Consult us, or our representatives before use, to confirm that the information in this catalog is up to date. 2. We assume no responsibility for any infringement of patents, patent rights, or other rights arising from the use of any information and circuitry in this catalog. 3. Please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this catalog. 4. The products in this catalog are not developed, designed, or approved for use with such equipment whose failure of malfunction can be reasonably expected to directly endanger the life of, or cause significant injury to, the user. (e.g. Atomic energy; aerospace; transport; combustion and associated safety equipment thereof.) 5. Please use the products listed in this catalog within the specified ranges. Should you wish to use the products under conditions exceeding the specifications, please consult us or our representatives. 6. We assume no responsibility for damage or loss due to abnormal use. 7. All rights reserved. No part of this catalog may be copied or reproduced without the prior permission of Torex Semiconductor Ltd.
24/24

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