RT9169/H
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DS9169/H-14 April 2011 www.richtek.com
Pin Configurations
100mA, 4μμ
μμ
μA Quiescent Current CMOS LDO Regulator
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Ordering Information
General Description
The RT9169/H 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 4μA ultra-low quiescent, low
dropout voltage, high output accuracy, current limiting
protection, and high ripple rejection ratio.
Features
zz
zz
zUltra-Low Quiescent Current: 4μμ
μμ
μA
zz
zz
zLow Dropout: 450mV at 100mA
zz
zz
zWide Operating Voltage Ranges: 2V to 6V
zz
zz
zCurrent Limiting Protection
zz
zz
zOnly 1μμ
μμ
μF Output Capacitor Required for Stability
zz
zz
zHigh Power Supply Rejection Ratio
zz
zz
zRoHS Compliant and 100% Lead (Pb)-Free
Applications
zBattery-Powered Equipment
zPalmtops, Notebook Computers
zHa nd-held Instruments
zPCMCIA Cards
TO-92 (L-T ype)
TO-92 (T -T ype)
SOT-23-3
(TOP VIEW)
SOT-23-3 (L-T ype)
Note :
1. RT9169H package type is available in SOT-23-5 only.
2. Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
GND VOUT
VIN
2
3
VOUT GND
VIN
2
3
1
2
3
VIN
GND
VOUT
1
2
3
VOUT
VIN
GND
SOT-23-5
VIN GND
VOUT NC
4
23
5
EN/EN
SOT-89
GND VIN
(TAB) VOUT
123
Package Type
ZL : TO-92 (L-T ype)
ZT : TO-92 (T-Type)
X : SOT-89
V : SOT-23-3
VL : SO T-23-3 (L-Type)
B : SOT-23-5
Output Voltage
12 : 1.2V
13 : 1.3V
:
49 : 4.9V
50 : 5.0V
RT9169/H-
Chip Enable High (SOT-23-5 Only)
Chip Enable Low
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
RT9169/H
2DS9169/H-14 April 2011www.richtek.com
Absolute Maximum Ratings (Note 1)
zInput V oltage ---------------------------------------------------------------------------------------------------------- 7V
zPower Dissipation, PD @ TA = 25°C
SOT-23-3--------------------------------------------------------------------------------------------------------------- 0.4W
SOT-23-5--------------------------------------------------------------------------------------------------------------- 0.4W
SOT-89 ----------------------------------------------------------------------------------------------------------------- 0.571W
TO-92 ------------------------------------------------------------------------------------------------------------------- 0.625W
zJunction T emperature ----------------------------------------------------------------------------------------------- 150°C
zLead T emperature (Soldering, 10 sec.) ------------------------------------------------------------------------- 260°C
zStorage T emperature Range --------------------------------------------------------------------------------------- −65°C to 150°C
zPa ckage Thermal Resista nce (Note 2)
SOT-23-3, θJA --------------------------------------------------------------------------------------------------------- 250°C/W
SOT-23-5, θJA --------------------------------------------------------------------------------------------------------- 250°C/W
SOT-89, θJA ----------------------------------------------------------------------------------------------------------- 175°C/W
TO-92, θJA ------------------------------------------------------------------------------------------------------------- 160°C/W
zESD Susceptibility (Note 3)
HBM (Human Body Mode) ----------------------------------------------------------------------------------------- 2kV
MM (Ma chine Mode) ------------------------------------------------------------------------------------------------ 200V
Function Block Diagram
Typical Application Circuit
VIN GND
VOUT
RT9169
+
+
COUT
1uF
CIN
1uF
VIN VOUT
VIN
GND
VOUT
RT9169/H
+
+
COUT
1uF
CIN
1uF
VIN VOUT
EN/EN
RT9169H
Chip Enable
RT9169
Chip Enable
+
-Current
Limit
VIN
VOUT
EN/EN
Recommended Operating Conditions (Note 4)
zJunction T emperature Range -------------------------------------------------------------------------------------- −40°C to 125°C
zAmbient T emperature Range -------------------------------------------------------------------------------------- −40°C to 85°C
Functional Pin Description
Pin Name Pin Function
VIN Power Input
VOUT Output Voltage
GND Ground
EN/EN Chip Enable Control Input
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DS9169/H-14 April 2011 www.richtek.com
Electrical Characteristics
(VIN = 5.5V, CIN = 1μF, COUT = 1μF, TA = 25°C, unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Inpu t Volta ge Range V IN 2 -- 6 V
Output Voltage Accuracy ΔVOUT I
L = 1mA -2 -- +2 %
Maximum Output Current IMAX V
IN = VOUT + 0.6V, VIN ≥ 3.6V 100 -- -- mA
Current Limit ILIM I
L = 100mA 150 250 -- mA
No Load -- 4 7 μA
GND Pin Cu rrent IG IOUT = 100mA 4 10 μA
IOUT = 1 mA, VIN ≥ 3.6V -- 4 10
IOUT = 50 mA, VIN ≥ 3.6V -- 200 300 Dropout Voltage VDROP
IOUT = 100mA, VIN ≥ 3.6V -- 450 600
mV
Line Regulation ΔVLINE VIN = (VOUT + 0.3V) to 6V,
VIN ≥ 3.6V , IOUT = 1mA -0.2 -- +0.2 %/V
Load Re gulation ΔVLOAD I
LOUT = 0mA to 100mA -- 0.01 0.04 %/mA
Output Noise eNO BW = 10 0 Hz to 50 kHz
COUT = 10μF -- 250 -- μV
Ripple Re jec tion PSRR F = 1kHz, COUT = 1μF -- 30 -- dB
S tandby
Current RT 9 169/H (SOT-23-5) EN = V IN or E N = 0 -- 0.1 1 μA
Logic High VIL 0.6 -- --
EN/EN
Threshold Logic Low VIH -- -- 2 V
Thermal Shutdown Protection 125 -- -- °C
Application Information
A 1μF (or larger) capacitor is recommended between VOUT and GND for stability. The part may oscillate without the
ca pacitor. Any type of ca pacitor can be used, but not Aluminum electrolytes when operating below –25°C. The ca pacitance
may be increased without li mit.
A 1μF ca pacitor (or larger) should be pla ced between VIN to GND.
Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2. θJA is measured in the natural convection at TA = 25°C on a low effective thermal conductivity test board of
JEDEC 51-3 thermal measurement standard.
Note 3. Devices are ESD sensitive. Handling precaution is highly recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
RT9169/H
4DS9169/H-14 April 2011www.richtek.com
Typical Operating Characteristics
Quiescient Current vs. Temperature
0
1
2
3
4
5
-30 0 30 60 90 120
Temperature
Quiescent C urr ent ( A
)
VIN = 5V
(°C)
μ
Dropout Voltage (VIN-VOUT)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
020406080100
ILOAD (mA)
Dropout Vo lt ag e (V)
VOUT = 3.3V
125°C
25°C
Short Circuit Current
0
100
200
300
400
500
012345
Input/Output Differential (V)
Short C ir c uit Cu rrent ( m A
)
125°C
25°C
Temperature Stability
1.7
2.1
2.5
2.9
3.3
3.7
-50 -25 0 25 50 75 100 125
Temperature
Output V olt a ge (V)
VOUT = 3.3V
VOUT = 1.8V
(°C)
PSRR
-70
-60
-50
-40
-30
-20
-10
0
Frequency (H z)
PSRR (dB)
10 100 1k 10k 100k 1M
VIN = 5V, VOUT = 3.3V
CIN = 1uF , TA = 125°C
COUT = 1uF Electrolytic
Capacitor
10mA
50mA
PSRR
-70
-60
-50
-40
-30
-20
-10
0
Frequency (H z)
PSRR (dB)
10 100 1k 10k 100k 1M
VIN = 5V, VOUT = 1.8V
CIN = 1uF , TA = 125°C
COUT = 1uF Electrolytic
Capacitor
10mA
50mA
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DS9169/H-14 April 2011 www.richtek.com
Line Transient Response
Input Voltage
Deviation (V) Output Voltage
Deviation (mV)
6
5
4
3
300
200
100
0
Time (1ms/Div)
VOUT = 1.8V
IOUT = 50mA TA = 25°C
COUT = 1uF Electrolytic
≈ ≈
Line Transient Response
Input Voltage
Deviation (V) Output Voltage
Deviation (mV)
6
5
4
3Time (1ms/Div)
VOUT = 3.3V
IOUT = 50mA TA = 25°C
COUT = 1uF Electrolytic
200
100
0
≈ ≈
Load Transient Response
Load
Current (mA) Output Voltage
Deviation (mV)
100
50
1
−50
100
50
0
−50
Time (500us/Div)
VIN = 5V
VOUT = 3.3V
TA = 25°C
CIN = 1uF Cera mic
COUT = 1uF Cera mic
≈
Load Transient Response
Load
Current (mA) Output Voltage
Deviation (mV)
200
100
10
−100
100
50
0
−50
Time (500us/Div)
VIN = 5V
VOUT = 3.3V
TA = 25°C
CIN = 1uF Cera mic
COUT = 1uF Cera mic
≈ ≈
Load Transient Response
Load
Current (mA) Output Voltage
Deviation (mV)
100
50
1
−50
20
0
−20
Time (500us/Div)
VIN = 5V
VOUT = 1.8V
TA = 25°C
CIN = 1uF Cera mic
COUT = 1uF Cera mic
≈
Load Transient Response
Load
Current (mA) Output Voltage
Deviation (mV)
200
100
10
−100
50
0
−50
Time (500us/Div)
VIN = 5V
VOUT = 1.8V
TA = 25°C
CIN = 1uF Cera mic
COUT = 1uF Cera mic
≈
RT9169/H
6DS9169/H-14 April 2011www.richtek.com
A
bA1
B
D
C
e
H
L
SOT-23-3 Surface Mount Pa ckage
Dim e nsions In Millimet e rs Dime nsio ns In Inc hes
Symbol Min Max Min Max
A 0.889 1.295 0.035 0.051
A1 0.000 0.152 0.000 0.006
B 1.397 1.803 0.055 0.071
b 0.356 0.508 0.014 0.020
C 2.591 2.997 0.102 0.118
D 2.692 3.099 0.106 0.122
e 1.803 2.007 0.071 0.079
H 0.080 0.254 0.003 0.010
L 0.300 0.610 0.012 0.024
Outline Dimension
RT9169/H
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DS9169/H-14 April 2011 www.richtek.com
AA1
e
b
B
D
C
H
L
SOT-23-5 Surface Mount Package
Dimensions In Millimet ers Dim ension s In Inches
Symbol Min Max Min Max
A 0.889 1.295 0.035 0.051
A1 0.000 0.152 0.000 0.006
B 1.397 1.803 0.055 0.071
b 0.356 0.559 0.014 0.022
C 2.591 2.997 0.102 0.118
D 2.692 3.099 0.106 0.122
e 0.838 1.041 0.033 0.041
H 0.080 0.254 0.003 0.010
L 0.300 0.610 0.012 0.024
RT9169/H
8DS9169/H-14 April 2011www.richtek.com
b
b1
b
H
A
B
D
C
e
e
C1
D1
A
3-Lead SOT-89 Surface Mount Package
Dim e nsions In Millimet e rs Dimensio ns In Inche s
Symbol Min Max Min Max
A 1.397 1.600 0.055 0.063
b 0.356 0.483 0.014 0.019
B 2.388 2.591 0.094 0.102
b1 0.406 0.533 0.016 0.021
C 3.937 4.242 0.155 0.167
C1 0.787 1.194 0.031 0.047
D 4.394 4.597 0.173 0.181
D1 1.397 1.753 0.055 0.069
e 1.448 1.549 0.057 0.061
H 0.356 0.432 0.014 0.017
RT9169/H
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DS9169/H-14 April 2011 www.richtek.com
Information that is provided by Richtek Technology Corporation is believed to be accurate and reliable. Richtek reserves the right to make any change in circuit
design, specification or other related things if necessary without notice at any time. No third party intellectual property infringement of the applications should be
guaranteed by users when integrating Richtek products into any application. No legal responsibility for any said applications is assumed by Richtek.
Richtek Technology Corporation
Headquarter
5F, No. 20, Taiyuen Street, Chupei City
Hsinchu, Taiwan, R.O.C.
Tel: (8863)5526789 Fax: (8863)5526611
Richtek Technology Corporation
Taipei Office (Marketing)
5F, No. 95, Minchiuan Road, Hsintien City
Taipei County, Taiwan, R.O.C.
Tel: (8862)86672399 Fax: (8862)86672377
Email: marketing@richtek.com
DA
C
b
E
L
e
D1 A1
3-Lead TO-92 Plastic Package
Dim e nsions In Millimet e rs Dime nsio ns In Inc hes
Symbol Min Max Min Max
A 3.175 4.191
0.125 0.165
A1 1.143 1.372 0.045 0.054
b 0.406 0.533
0.016 0.021
C 0.406 0.533
0.016 0.021
D 4.445 5.207 0.175 0.205
D1 3.429 5.029
0.135 0.198
E 4.318 5.334
0.170 0.210
e 1.143 1.397
0.045 0.055
L 12.700 0.500
