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| XC6205 Series Preliminary CMOS Low Power Consumption 70A Maximum Output Current : 150mA Highly Accurate : 2% ( 30mV less than 1.5V) Output Voltage Range : 0.9V ~ 1.75V (50mV Step) High Ripple Rejection : 60dB Low Noise : 30Vrms Low ESR capacitor compatible High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control February 07, 2003 Ver. 2 Applications Mobile phones, Cordless phones Wireless communication equipment Portable games Cameras, Video recorders Portable AV equipment Reference voltage Battery powered equipment General Description The XC6205 series are highly precise, low noise, positive voltage LDO regulators manufactured using CMOS processes. The series achieves high ripple rejection and low dropout and consists of a voltage reference, an error amplifier, a current limiter and a phase compensation circuit plus a driver transistor. Output voltage is selectable in 50mV increments within a range of 0.9V ~ 1.75V. The series is also compatible with low ESR ceramic capacitors which give added output stability. This stability can be maintained even during load fluctuations due to the excellent transient response of the series. The current limiter's foldback circuit also operates as a short protect for the output current limiter and the output pin. The CE function enables the output to be turned off, resulting in greatly reduced power consumption. Features Maximum Output Current Maximum Operating Voltage Output Voltage Range Highly Accurate Low Power Consumption Standby Current Low Noise High Ripple Rejection Operating Temperature Range Low ESR Capacitor Compatible Ultra Small Packages : 150mA : 2.0V ~ 10V : 0.9V~1.75V(50mV Step) : 2% (VOUT>1.5V) : 30mV (VOUT1.5V) : TYP 70A : Less than 0.1A (TYP) : 30Vrms (TYP) : 60dB (10kHz) : -40OC ~ +85OC : Ceramic capacitor : SOT-25 (SOT-23-5) SOT-89-5 USP-6B Typical Application Electrical Characteristics Load Transient Response XC6205B092 VIN=2V, tr=tf=5sec CIN=1F(ceramic), CL=4.7F(ceramic) VIN VOUT VSS CE NC 1.00 5 CL 2.2F 250 Output Current (mA) Output Voltage (V) 1 2 3 CIN 1F 0.95 Output Voltage 200 150 100 50mA Output Current 0.90 0.85 0.80 0.75 Time (40sec/div) 4 1 1mA 50 0 XC6205 Series Preliminary Pin Assignment SOT-25 1 2 3 4 5 PIN NUMBER SOT-89-5 USP-6B 4 1 2 5 3 6 1 2, 4 5 3 PIN NAME VIN VSS CE NC VOUT FUNCTION Input Ground ON/OFF Control No Connection Output High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control Block Diagram VIN ON/OFF Control each circuit Current Limiter R2 CE VOUT Pin Configuration VOUT 5 (NC) 4 VOUT VSS 2 5 VIN 4 VIN 1 NC 2 VOUT 3 R1 Voltage Reference 6 CE 5 VSS 4 NC VSS * The diode in the above diagram is for the IC's protection. 1 VIN 2 VSS 3 CE 1 NC 2 VSS 3 CE SOT-25 (SOT-23-5) (TOP VIEW) SOT-89-5 (TOP VIEW) USP-6B (TOP VIEW) Selection Guide The following options for the CE pin logic and internal pull-up/down are available: Active 'High' + no pull-down resistor built-in (standard) Active 'High' + 300M pull-down resistor built-in Ordering Information XC6205123456 DESIGNATOR SYMBOL A B DESCRIPTION Active 'High' (pull-down resistor built in) Active 'High' (no pull-down resistor built in) Active 'Low' (pull-up resistor built in) Active 'Low' (no pull-up resistor built in) Output Voltage : e.g. 1.5V = 2 : 1, 3 : 5 DESIGNATOR SYMBOL 2 DESCRIPTION Output Voltage : 100mV Step Accuracy : within 2% 4 A M D R L e.g. 2=0, 3=9, 4=2 0.9V Output Voltage : 50mV Step Accuracy : within 2% 1 C D e.g. 2=1, 3=3, 4=A 1.35V 5 6 Package Type : SOT-25(SOT-23-5) USP - 6B Device Orientation : Embossed Tape : Standard Feed Embossed Tape : Reverse Feed 2 3 Integer 2 XC6205 Series Preliminary High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control Absolute Maximum Rating PARAMETER Input Voltage Output Current Output Voltage CE Input Voltage Power Dissipation SOT-25(SOT-23-5) USP-6B Topr Tstg SYMBOL VIN IOUT VOUT VCE Pd RATINGS 12 500 VSS -0.3 ~ VIN +0.3 VSS -0.3 ~ VIN +0.3 250 100 -40 ~ +85 -55 ~ +125 O O UNITS V mA V V mW C C Operating Ambient Temperature Storage Temperature Electrical Characteristics PARAMETER Output Voltage Maximum Output Current Load Regulation Dropout Voltage Supply Current Standby Current Line Regulation Input Voltage Output Voltage Temperature Characteristics Ripple Rejection Rate Output Noise Current Limiter Short-circuit Current CE "High" Voltage CE "Low" Voltage CE "High" Current CE "Low" Current NOTE XC6205X152 (1.5V) Ta=25OC SYMBOL VOUT (E) IOUTMAX VOUT Vdif1 Vdif2 IDD Istby VOUT / 1mAIOUT100mA IOUT=30mA IOUT=100mA VCE=VIN VCE=VSS VOUT(T)+1.0VVIN10V IOUT=30mA 2.0 IOUT=30mA -40OCTopr85OC IOUT=50mA, f=10kHz 300Hz ~ 50kHz VIN=VOUT+1.5V, VOUT=VSS CONDITIONS IOUT=30mA MIN x 0.98 1.470 150 TYP VOUT(T) 1.500 15 500 600 70 0.01 0.01 MAX x 1.02 1.530 50 UNITS V mA mV mV mV A CIRCUIT 1 1 1 1 2 2 1 1 4 3 1 1 2 2 2 2 0.10 0.20 10.0 A %/V V ppm/OC dB Vrms mA mA VIN VOUT VIN VOUT / Topr VOUT PSRR en Ilim Ishort VCEH VCEL ICEH ICEL 100 60 30 300 50 1.60 VIN 0.25 0.10 0.10 V V A A VCE=VIN VCE=VSS -0.10 -0.10 (NOTE 1) VOUT(T)=Specified Output Voltage (NOTE 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). (NOTE 3) Vdif={VIN1 (NOTE5) -VOUT1 (NOTE4) } (NOTE 4) VOUT 1 = A voltage equal to 98% of the Output Voltage whenever an amply stabilized IOUT {VOUT(T) + 1.0V} is input. (NOTE 5) VIN1=The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased. (NOTE 6) Unless otherwise stated, VIN=VOUT(T)+1.0V 3 XC6205 Series Preliminary ! Test Circuits Circuit 1 VIN VOUT High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control A CE V CIN=1.0F (ceramic) VSS CL=2.2F (ceramic) V RL V Circuit 2 A A VIN VOUT OPEN CE VSS Circuit 3 VIN VOUT CE CIN=1.0F (ceramic) VSS CL=2.2F (ceramic) F.F.T IOUT=10mA Circuit 4 VIN VIN={VOUT+1} VDC +0.5Vp-pAC VOUT IOUT=50mA CE V VSS CL=2.2F (ceramic) V 4 XC6205 Series Preliminary High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control ! Operational Explanation Output voltage control with the XC6205 series : VIN CE ON/OFF Control each circuit The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The P-Channel MOSFET, which is connected to the VOUT pin, is then driven by the subsequent output signal. The output voltage at the VOUT pin is controlled & 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 CE pin's signal. Current Limiter VOUT R2 R1 Voltage Reference VSS Low ESR Capacitors With the XC6205 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 an output capacitor (CL) is connected as close as possible to the output pin (VOUT) and the VSS pin. Please use an output capacitor with a capacitance value as shown in the figure below. Also, please connect an input capacitor (CIN) of 0.1F between the VIN pin and the VSS pin in order to ensure a stable power input. Recommended Output Capacitor Values VOUT CL 0.9V ~ 1.2V 4.7F 1.25V ~ 1.75V 2.2F Current Limiter, Short-Circuit Protection The XC6205 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 50mA flows. However, when the input/output voltage differential is quite small, this current will be about 200mA. CE Pin The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6205 series. In shutdown mode, output at the VOUT pin will be pulled down to the VSS level via R1 & R2. The operational logic of the IC's CE pin is selectable (please refer to the selection guide on page 2). Note that as the standard XC6205B type is ' High Active/No Pull Down', operations will become unstable with the CE pin open. Although the CE pin is equal to an inverter input with CMOS hysteresis, with either the pull-up or pull-down options, the CE pin 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 CE pin. If this IC is used with the correct specifications for the CE pin, the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry. 5 XC6205 Series Preliminary High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control Minimum Operating Voltage In order to stablize the IC's operations, an input voltage of more than 2.0V is needed. Should the input voltage be less than 2.0V, the output voltage may not be regulated correctly. (Please refer to the graph data below.) 1 When VIN is less than 2.0V, the CE pin remains in standby mode. When VIN rises above 2.0V, the power supply will turn ON. 2 The input power supply will begin to rise after a few hundred sec. (Please also refer to the transient response characteristics.) " Input Voltage vs. Output Voltage XC6205B092 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.0 Topr= -40OC 25OC 85OC IOUT=1mA CIN=4.7 F(ceramic), CL=4.7 F(ceramic) Output Voltage VOUT (V) 2.0 4.0 6.0 8.0 10.0 Input Voltage VIN (V) " Enable Response Time " Turn-On Response Time XC6205B092 VIN=2.0V,CL=4.7 F(ceramic) XC6205B092 CL=4.7 F(ceramic) 4 CE Input Voltage (v) CE Input Voltage 2.5 Output Voltage (V) 4 Input Voltage 2.5 Output Voltage (V) 2.0 1.5 Output Voltage 0 Output Voltage 1.5 1.0 IOUT=1mA 30mA 100mA Input Voltage (V) 2 2.0 2 0 -2 -4 -6 TIME (40usec/div) IOUT=1mA 30mA 100mA -2 -4 -6 TIME (40usec/div) 1.0 0.5 0.0 0.5 0.0 ! 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 strengthen VIN and VSS wiring in particular. 3 Please wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible. 6 XC6205 Series Preliminary XC6205 (1) Output Voltage vs. Output Current XC6205x092 1.0 Output Voltage VOUT (V) VIN=2.0V CIN=1.0F(ceramic), CL=4.7F(ceramic) High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control XC6205X152 1.6 Output Voltage VOUT (V) VIN=2.5V CIN=1.0F(ceramic), CL=2.2F(ceramic) 0.9 0.8 0.7 0.6 0 40 80 120 160 200 Output Current IOUT (mA) Topr= -40OC 25OC 85OC 1.5 Topr= -40OC 25OC 85OC 1.4 1.3 1.2 0 40 80 120 160 200 Output Current IOUT (mA) (2) Output Voltage vs. Output Current (current limit) XC6205x092 1.2 Output Voltage VOUT (V) 1.0 0.8 0.6 0.4 0.2 0.0 0 100 200 300 400 Output Current IOUT (mA) Topr= -40OC 25OC 85OC VIN=2.0V CIN=1.0F(ceramic), CL=4.7F(ceramic) XC6205X152 1.8 Output Voltage VOUT (V) 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 100 200 300 400 Output Current IOUT (mA) Topr= -40OC 25OC 85OC VIN=2.5V CIN=1.0F(ceramic), CL=4.7F(ceramic) XC6205x092 1.2 Output Voltage VOUT (V) 1.0 0.8 0.6 0.4 0.2 0.0 0 100 200 300 400 Output Current IOUT (mA) VIN=2.0V 5.0V, 10.0V 3.0V 2.5V Topr=25OC CIN=1.0F(ceramic), CL=4.7F(ceramic) XC6205X152 1.8 Output Voltage VOUT (V) 1.5 1.2 0.9 0.6 0.3 0.0 0 100 200 300 400 Output Current IOUT (mA) VIN=2.0V 5.0V, 10.0V 2.5V Topr=25OC CIN=1.0F(ceramic), CL=2.2F(ceramic) 3.0V 7 XC6205 Series Preliminary (3) Output Voltage vs. Input Voltage XC6205x092 1.2 Output Voltage VOUT (V) 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.5 1.0 1.5 2.0 2.5 Input Voltage VIN (V) IOUT= 1mA = 30mA = 100mA Topr=25OC CIN=1.0F(ceramic), CL=4.7F(ceramic) High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control XC6205x092 0.95 Output Voltage VOUT (V) Topr=25OC CIN=1.0F(ceramic), CL=4.7F(ceramic) 0.90 0.85 IOUT= 1mA = 30mA = 100mA 0.80 0.75 2 4 6 8 10 12 Input Voltage VIN (V) XC6205X152 1.7 Output Voltage VOUT (V) 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1.0 1.5 Input Voltage VIN (V) 2.0 Topr=25OC CIN=1.0F(ceramic), CL=2.2F(ceramic) XC6205X152 1.80 Output Voltage VOUT (V) 1.70 1.60 1.50 1.40 1.30 1.20 1.10 1.00 2 4 6 8 10 12 Input Voltage VIN (V) IOUT= 1mA = 30mA = 100mA Topr=25OC CIN=1.0F(ceramic), CL=2.2F(ceramic) IOUT= 1mA = 30mA = 100mA (4) Dropout Voltage vs. Output Current XC6205x092 1.4 Dropout Voltage Vdif (V) 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 40 80 120 160 200 Output Current IOUT (mA) Topr= 85OC 25OC - 40OC CIN=1.0F(ceramic), CL=4.7F(ceramic) XC6205X152 1.4 Dropout Voltage Vdif (V) 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 40 80 120 160 200 Output Current IOUT (mA) CIN=1.0F(ceramic), CL=2.2F(ceramic) Topr= 85OC 25OC - 40OC 8 XC6205 Series Preliminary (5) Supply Current vs. Input Voltage XC6205x092 80 High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control XC6205x092 80 Supply Current ISS (A) Supply Current ISS (A) 70 60 50 40 30 20 10 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Input Voltage VIN (V) Topr= 85OC 25OC - 40OC 70 60 Topr= 85OC 25OC - 40OC 50 40 2 3 456789 Input Voltage VIN (V) 10 XC6205X152 80 Supply Current ISS (A) Supply Current ISS (A) 70 60 50 40 30 20 10 0 0.0 0.5 1.0 1.5 2.0 2.5 Input Voltage VIN (V) 3.0 Topr= 85OC 25OC - 40OC XC6205X152 90 80 70 60 50 40 2 3 4 5 6 7 8 9 Input Voltage VIN (V) 10 Topr= 85OC 25OC - 40OC (6) Output Voltage vs. Ambient Temperature XC6205x092 1.1 Output Voltage VOUT (V) 1.0 0.9 0.8 0.7 0.6 -50 -20 10 40 70 O XC6205X152 1.7 Output Voltage VOUT (V) 1.6 1.5 1.4 1.3 1.2 100 -50 -20 10 40 70 100 Ambient Temperature Topr (OC) IOUT= 1mA = 10mA = 30mA = 100mA = 150mA VIN=2.5V CIN=1.0F(ceramic), CL=2.2F(ceramic) VIN=2.0V CIN=1.0F(ceramic), CL=4.7F(ceramic) IOUT= 1mA = 10mA = 30mA = 100mA = 150mA Ambient Temperature Topr ( C) 9 XC6205 Series Preliminary (7) Supply Current vs. Ambient Temperature XC6205x092 80 Supply Current ISS (A) VIN=2.0V High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control XC6205X152 100 Supply Current ISS (mA) 80 60 40 20 0 VIN=2.5V 60 40 20 0 -50 -20 10 40 70 O 100 -50 -20 10 40 70 O 100 Ambient Temperature Topr ( C) Ambient Temperature Topr ( C) (8) CE Pin Threshold Voltage vs. Ambient Temperature XC6205xxx2 VIN=VOUT+1V, RL=100 CIN=1.0F(ceramic), CL=4.7F(ceramic) Threshold Voltage VCEH, VCEL(V) 2.00 1.50 1.00 0.50 0.00 -50 CE "High" Voltage CE "Low" Voltage -25 0 25 50 75 O 100 Ambient Temperature Topr ( C) 10 XC6205 Series Preliminary (9) Load Transient Response XC6205x092 VIN=2.0V CIN=1.0F(ceramic),CL=4.7F(ceramic) High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control XC6205x092 90 1.00 Output Current (mA) Output Voltage (V) 0.95 0.90 0.85 Output Current VIN=2.0V CIN=1.0F(ceramic),CL=4.7F(ceramic) 1.00 Output Voltage (V) 0.95 0.90 0.85 Output Current Output Voltage 300 250 200 150 Output Current (mA) Output Voltage (V) Output Current (mA) 75 60 45 Output Voltage 0.80 0.75 0.70 30mA 1mA 30 15 0 Time (40sec/div) 0.80 0.75 0.70 100mA 1mA 100 50 0 Time (40sec/div) XC6205X152 VIN=2.5V CIN=1.0F(ceramic),CL=2.2F(ceramic) XC6205X152 VIN=2.5V CIN=1.0F(ceramic),CL=2.2F(ceramic) 1.60 Output Voltage (V) 1.55 1.50 1.45 Output Current Output Voltage 90 Output Voltage (V) 75 60 45 30mA 1mA 1.60 Output Current (mA) 1.55 1.50 1.45 Output Current Output Voltage 300 250 200 150 100mA 1mA 1.40 1.35 1.30 30 15 0 Time (40sec/div) 1.40 1.35 1.30 100 50 0 Time (40sec/div) (10) Input Transient Response 1 XC6205x092 CL=4.7F(ceramic) XC6205X152 CL=2.2F(ceramic) 4 Input Voltage (V) 2 0 Input Voltage 2.5 Output Voltage (V) Input Voltage (V) 2.0 1.5 5.0 2.5 0.0 Input Voltage 3.0 2.5 2.0 Output Voltage Output Voltage -2.5 -5.0 IOUT= 1.5 1.0 1mA 30mA 100mA -2 -4 -6 Time (40sec/div) IOUT= 1mA 30mA 100mA 1.0 0.5 0.0 -7.5 -10.0 Time (40sec/div) 0.5 0.0 11 XC6205 Series Preliminary (11) Input Transient Response 2 XC6205x092 IOUT=1mA,CL=4.7F(ceramic) High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control XC6205x092 1.2 Output Voltage (V) 1.1 1.0 Input Voltage (V) IOUT=100mA,CL=4.7F(ceramic) Input Voltage 4 Input Voltage (V) 3 2 Input Voltage 4 3 2 1.2 1.1 1.0 Output Voltage (V) Output Voltage (V) Output Voltage (V) Output Voltage Output Voltage 1 0 -1 Time (40sec/div) 0.9 0.8 0.7 1 0 -1 Time (40sec/div) 0.9 0.8 0.7 XC6205X152 IOUT=1mA,CL=2.2F(ceramic) XC6205X152 IOUT=100mA,CL=2.2F(ceramic) 4 Input Voltage (V) 3 2 Output Voltage Input Voltage 1.8 Input Voltage (V) Output Voltage (V) 1.7 1.6 1.5 1.4 1.3 Time (40sec/div) 4 3 2 Output Voltage Input Voltage 1.8 1.7 1.6 1.5 1.4 1.3 Time (40sec/div) 1 0 -1 1 0 -1 (12) Enable Response Time XC6205B092 VIN=2.0V, CL=4.7F(ceramic) XC6205X152 2.5 VIN=2.5V, CL=2.2F(ceramic) 4 CE Input Voltage 5.0 Output Voltage (V) Input Voltage (V) 2.5 0.0 CE Input Voltage 3.0 2.5 2.0 Input Voltage (V) 2 0 -2 -4 -6 Time (40sec/div) Output Voltage 2.0 1.5 1.0 1mA 30mA 100mA Output Voltage -2.5 -5.0 IOUT= 1.5 1.0 1mA 30mA 100mA IOUT= 0.5 0.0 -7.5 -10.0 Time (40sec/div) 0.5 0.0 12 XC6205 Series Preliminary (13) Ripple Rejection Rate XC6205x092 90 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 100 Ripple Frequency f (kHz) VIN=2.5VDC+0.5Vp-pAC IOUT=30mA, CL=4.7F(ceramic) High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control XC6205X152 90 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 100 Ripple Frequency f (kHz) VIN=2.5VDC+0.5Vp-pAC IOUT=30mA, CL=2.2F(ceramic) Ripple Rejection Rate RR (dB) 13 Ripple Rejection Rate RR (dB) |
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