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RT9169
100mA, 4A Quiescent Current CMOS LDO Regulator
General Description
The RT9169 series are 100mA ultra-low quiescent current CMOS low dropout (LDO) regulator designed for battery-powered equipments. The output voltages range from 1.2V to 5V with 0.1V per step. The other features include 4A ultra-low quiescent, low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio.
Features
Ultra-Low Quiescent Current: 4A Low Dropout: 450mV at 100mA Wide Operating Voltage Ranges: 2V~6V Current Limiting Protection Only 1F Output Capacitor Required for Stability High Power Supply Rejection Ratio
Applications
Battery-Powered Equipment Palmtops, Notebook Computers Hand-held Instruments PCMCIA Cards
Ordering Information
RT9169Package type ZL : TO-92 L Type ZT : TO-92 T Type X : SOT-89 V : SOT-23 CB : SOT-25 Operating temperature range C: Commercial standard Output voltage 12 : 1.2V 13 : 1.3V : 49 : 4.9V 50 : 5.0V
Pin Configurations
Part Number RT9169CZL (Plastic TO-92)
123
Pin Configurations TOP VIEW
1. VIN 2. GND 3. VOUT
RT9169CZT (Plastic TO-92)
123
TOP VIEW
1. VOUT 2. VIN 3. GND
Typical Application Circuit
RT9169 VIN CIN 1F VIN GND VOUT COUT 1F VOUT
RT9169CX (Plastic SOT-89)
1 2 3
TOP VIEW
1. GND 2. VIN (TAB) 3. VOUT
RT9169CV (Plastic SOT-23)
1
3
TOP VIEW
1. VOUT 2. GND 3. VIN
2
RT9169CB (Plastic SOT-25)
TOP VIEW
5 4
Marking Information
For marking information, contact our sales representative directly or through a RichTek distributor located in your area, otherwise visit our website for detail.
1
2
3
1. 2. 3. 4.
VIN GND EN NC 5. VOUT
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RT9169
Pin Description
Pin Name VIN VOUT GND EN Pin Function Power Input Output Voltage Ground Chip Enable Control Input
Function Block Diagram
VIN
+_
Current Limit VOUT
EN
GND
Absolute Maximum Ratings
Input Voltage Power Dissipation, PD @ TA = 25 C TO-92 SOT-89 SOT-23 SOT-25 Operating Junction Temperature Range Storage Range Package Thermal Resistance TO-92, JA SOT-89, JC SOT-89, JA SOT-23, JA SOT-25, JA 7V 0.6W 0.5W 0.25W 0.25W -40C to 125C -65C to 150C 160C/W 100C/W 180C/W 250C/W 250C/W
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Electrical Characteristics
(VIN = 5.5V, CIN = 1F, COUT = 1F, TA = 25C, unless otherwise specified) Parameter Input Voltage Range Output Voltage Accuracy Maximum Output Current Current Limit GND Pin Current Symbol VIN VOUT IMAX ILIMIT IG IL = 1mA VIN = VOUT + 0.6V, VIN 3.6V IL = 100mA No Load IOUT = 100mA IOUT = 1mA, VIN 3.6V Dropout Voltage VDROP IOUT = 50mA, VIN 3.6V IOUT = 100mA, VIN 3.6V Line Regulation Load Regulation Output Noise Ripple Rejection Standby Current EN Threshold Thermal Shutdown Protection RT9169-CB VLINE VIN = (VOUT + 0.3V) to 6V, VIN 3.6V, IOUT = 1mA ----0.2 ----0.6 125 Test Conditions Min 2 -2 100 150 -Typ ---250 4 4 4 200 450 -0.01 250 30 0.1 1 -Max 6 +2 --7 10 10 300 600 +0.2 0.04 --1 2 -%/V %/mA V dB A V C mV Units V % mA mA A A
VLOAD ILOUT = 0mA to 100mA eNO PSRR BW = 100Hz to 50KHz COUT = 10F F = 1KHz, COUT = 1F EN = VIN
Application Information
A 1F (or larger) capacitor is recommended between VOUT and GND for stability. The part may oscillate without the capacitor. Any type of capacitor can be used, but not Aluminum electrolytes when operating below -25C. The capacitance may be increased without limit. A 1F capacitor (or larger) should be placed between VIN to GND.
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Typical Operating Charateristics
Temperature Stability
3.7
5
Quiescient Current
3.3
VOUT = 3.3V
4
Output Voltage (V)
2.5
I ( A)
2.9
3
2
2.1
1
VOUT = 1.8V
1.7 -50 -25 0 25 50 75 100 125
0 -30 0 30 60
VIN = 5V
90 120
Temperature ( C)
Temperature ( C)
Dropout Voltage (VIN-VOUT)
0.8
Short Circuit Current
500
125C
0.7
Short Circuit Current (mA)
400
25C 125C
Dropout Voltage (V)
0.6 0.5 0.4 0.3 0.2 0.1 0 0 20 40 60
300
25C
200
100
VOUT = 3.3V
80 100
0 0 1 2 3 4 5
ILOAD (mA)
Input/Output Differential (V)
PSRR
CIN = 1F COUT = 1F Electrolytic Capacitor VIN = 5V VOUT = 1.8V -20 TA = 25C
-10 0 0
PSRR
50mA
CIN = 1F COUT = 1F Electrolytic Capacitor VIN = 5V VOUT = 3.3V -20 TA = 25C
-10 -30 -40 -50 -60 -70
50mA
PSRR (dB)
-30 -40 -50 -60 -70
10mA
PSRR (dB)
10mA
10
100
1K
10K
100K
1M
10
100
1K
10K
100K
1M
Frequency (Hz)
Frequency (Hz)
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Line Transient Response
Output Voltage Deviation (mV) Output Voltage Deviation (mV) 300
Line Transient Response
300
VOUT = 1.8V 200 TA = 25C
100 02>
T T
COUT = 1F Electrolytic IOUT = 50mA
VOUT = 3.3V
200 TA = 25C 100 02 >
T T
COUT = 1F Electrolytic IOUT = 50mA
Input Voltage Deviation (V) 6 5
1>
6 Input Voltage Deviation (V)
T
5 4 3 0 1 2 3 4 5 6 7 8 9
1>
T
4 3 0 1 2 3 4 5 6 7 8 9 10 Time (mS)
10
Time (mS)
Load Transient Response
Output Voltage Deviation (mV)
Load Transient Response
Output Voltage Deviation (mV) 100
40
CIN = 1F Ceramic
20 COUT = 1F Ceramic 0 -20
VIN = 5V TA = 25 C VOUT = 1.8V
CIN = 1F Ceramic
50 COUT = 1F Ceramic 0 -50
VIN = 5V TA = 25 C VOUT = 1.8V
Load Current (mA) 100 50 1 -50 Time (500S/Div)
Load Current (mA)
200 100 10 -100 Time (500S/Div)
Load Transient Response
Output Voltage Deviation (mV) 100 50 0 -50 Output Voltage Deviation (mV)
Load Transient Response
100 50 0 -50
CIN = 1F Ceramic VIN = 5V TA = 25 C COUT = 1F Ceramic VOUT = 3.3V
CIN = 1F Ceramic VIN = 5V TA = 25 C COUT = 1F Ceramic VOUT = 3.3V
Load Current (mA) 100 50 1 -50 Time (500S/Div)
Load Current (mA)
200 100 10 -100 Time (500S/Div)
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Package Information
D A
E
L
e
e
b
C
D1 A1
Symbol A A1 b C D D1 E e L
Dimensions In Millimeters Min 3.175 1.143 0.406 0.406 4.445 3.429 4.318 1.143 12.700 Max 4.191 1.372 0.533 0.533 5.207 -5.334 1.397 -3-Lead TO-92 Package
Dimensions In Inches Min 0.125 0.045 0.016 0.016 0.175 0.135 0.170 0.045 0.500 Max 0.165 0.054 0.021 0.021 0.205 -0.210 0.055 --
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D D1
A H
C
B
C1 e e
A
b
b1
b
Symbol A b B b1 C C1 D D1 e H
Dimensions In Millimeters Min 1.397 0.356 2.388 0.406 -0.787 4.394 1.397 1.448 0.355 Max 1.600 0.483 2.591 0.533 4.242 1.194 4.597 1.753 1.549 0.432
Dimensions In Inches Min 0.055 0.014 0.094 0.016 -0.031 0.173 0.055 0.057 0.014 Max 0.063 0.019 0.102 0.021 0.167 0.047 0.181 0.069 0.061 0.017
3-Lead SOT-89 Surface Mount
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D
C
B
e
A b L
H
A1
Symbol A A1 B b C D e H L
Dimensions In Millimeters Min 0.889 -1.397 0.356 2.591 2.692 1.803 0.102 0.356 Max 1.295 0.152 1.803 0.508 2.997 3.099 2.007 0.254 0.610
Dimensions In Inches Min 0.035 -0.055 0.014 0.102 0.106 0.071 0.004 0.014 Max 0.051 0.006 0.071 0.020 0.118 0.122 0.079 0.010 0.024
SOT-23 Plastic Surface Mount
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D
C
B
b
A L
H
e
A1
Symbol A A1 B b C D e H L
Dimensions In Millimeters Min 0.889 0.000 1.397 0.356 2.591 2.692 0.838 0.102 0.356 Max 1.295 0.152 1.803 0.559 2.997 3.099 1.041 0.254 0.610
Dimensions In Inches Min 0.035 0.000 0.055 0.014 0.102 0.106 0.033 0.004 0.014 Max 0.051 0.006 0.071 0.022 0.118 0.122 0.041 0.010 0.024
SOT- 25 Surface Mount Package
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RICHTEK TECHNOLOGY CORP.
Headquarter
5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611
RICHTEK TECHNOLOGY CORP.
Taipei Office (Marketing)
8F-1, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek.com
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