RichTek RT9169, RT9169H Technical data

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RT9169/H

100mA, 4

μμ

μA Quiescent Current CMOS LDO Regulator

μμ

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 ra nge
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.

Ordering Information

RT9169/H

-

Package Type
ZL : TO-92 (L-Type)
ZT : TO-92 (T-Type)
X : SOT-89
V : SOT-23-3
VL : SOT-23-3 (L-Type)
B : SOT-23-5

Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer­ cial Standard)

Output Voltage
12 : 1.2V
13 : 1.3V
:
49 : 4.9V
50 : 5.0V

Features

zz

Ultra-Low Quiescent Current: 4

z

zz

zz

z Low Dropout: 450mV at 100mA

zz

zz

z Wide Operating Voltage Ranges: 2V to 6V

zz

zz

z Current Limiting Protection

zz

zz

z Only 1

zz

zz

z High Power Supply Rejection Ratio

zz

zz

z RoHS Compliant and 100% Lead (Pb)-Free

zz

μμ

μF Output Capacitor Required for Stability

μμ

μμ

μA

μμ

Applications

z Battery-Powered Equipment
z Palmtops, Notebook Computers
z Hand-held Instruments
z PCMCIA Cards

Pin Configurations

(TOP VIEW)

VIN

3

1

VOUT GND

SOT-23-3

2

VIN

3

1

GND VOUT

SOT-23-3 (L-Type)

2

Chip Enable High (SOT-23-5 Only)
Chip Enable Low

Note :

1. RT9169H package type is available in SOT-23-5 only.

2. RichTek Pb-free and Green 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.
`100%matte tin (Sn) plating.

Marking Information

For marking information, contact our sales re presentative
directly or through a RichTek distributor located in your
area, otherwise visit our website for detail.

DS9169/H-12 March 2007 www.richtek.com

123

VIN

GND

SOT-89

VOUT

(TAB)

3
2

1

3
2

1

TO-92 (L-Type)

TO-92 (T-T ype)

VIN

GND

EN/EN

1

2

354

SOT-23-5

VOUT
GND
VIN

VOUT

NC

GND
VIN
VOUT

1

RT9169/H

Typical Application Circuit

VIN

RT9169

VOUT

GND

C

1uF

+

IN

V

IN

Function Block Diagram

+

-

EN/EN

Current

Limit

+

C

1uF

OUT

V

OUT

VIN

VOUT

V

IN

C
1uF

RT9169

Chip Enable

+

IN

RT9169H

Chip Enable

VIN

RT9169/H

EN/EN

VOUT

GND

Functional Pin Description

Pin Name Pin Function

VIN Power Input
VOUT Output Voltage
GND Ground
EN/EN

Chip Enable Control Input

+

C

1uF

OUT

V

OUT

Absolute Maximum Ratings (Note 1)

z Input V oltage------------------------------------------------------------------------------------------------------------ 7V
z Power Dissipation, P

@ TA = 25°C

D

SOT-23-3 ---------------------------------------------------------------------------------------------------------------- 0.4W
SOT-23-5 ---------------------------------------------------------------------------------------------------------------- 0.4W
SOT- 89------------------------------------------------------------------------------------------------------------------- 0.571W
TO-92--------------------------------------------------------------------------------------------------------------------- 0.625W

z Junction T emperature------------------------------------------------------------------------------------------------- 150°C
z Lead Temperature (Soldering, 10 sec.)--------------------------------------------------------------------------- 260°C
z Storage T emperature Range ---------------------------------------------------------------------------------------- −65°C to 150°C
z Package Thermal Re sistance (Note 4)

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

z ESD Susceptibility (Note 2)

HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 2kV
MM (Ma chine Mode)-------------------------------------------------------------------------------------------------- 200V

Recommended Operating Conditions (Note 3)

z Junction T emperature Range---------------------------------------------------------------------------------------- −40°C to 125°C
z Ambient T emperature Range---------------------------------------------------------------------------------------- −40°C to 85°C

DS9169/H-12 March 2007www.richtek.com

2

RT9169/H

Electrical Characteristics

(V

= 5.5V, CIN = 1μF, C

IN

Parameter Symbol Test Conditions Min Typ Max Units

Input Voltage Range VIN 2 -- 6 V

= 1μF, TA = 25°C, unless otherwise specified)

OUT

Output Voltage Accurac y ΔV
Maximum Output Current I
Current Limit I

IL = 1mA -2 -- +2 %

OUT

VIN = V

MAX

IL = 100mA 150 250 -- mA

LIM

+ 0.6V, VIN ≥ 3.6V 100 -- -- mA

OUT

No Load -- 4 7 μA

GND Pin Current IG

= 100mA 4 10 μA

I

OUT

I

= 1mA, VIN ≥ 3.6V -- 4 10

OUT

Dropout Voltage V

Line Regulation ΔV

Load Regulation ΔV

Output Noise eNO

DROP

I

OUT

I

OUT

V

LINE

V

LOAD ILOUT

BW = 100Hz to 50kHz
C

= 50mA, V

= 100mA, VIN ≥ 3.6V -- 450 600

= (V

IN

OUT

≥ 3.6V, I

IN

= 0mA to 100mA -- 0.01 0.04 %/mA

= 10μF

OUT

Ripple Rejection PSRR F = 1kHz, C
Standby

Current
EN/EN
Threshold

RT9169/H (SOT-23-5) EN = V

or EN = 0 -- 0.1 1 μA

IN

Logic High VIL 0.6 -- -­Logic Low V

-- -- 2

IH

≥ 3.6V -- 200 300

IN

+ 0.3V) to 6V,

= 1mA

OUT

-0.2 -- +0.2 %/V

-- 250 -- μV

= 1μF -- 30 -- dB

OUT

mV

V

Thermal Shutdown Protection 125 -- -- °C

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. Devices are ESD sensitive. Handling precaution is highly recommended.
Note 3. The device is not guaranteed to function outside its operating conditions.
Note 4. θ

is measured in the natural convection at TA = 25°C on a low effective thermal conductivity test board of

JA

JEDEC 51-3 thermal measurement standard.

Application Information

A 1μF (or larger) capacitor is recommended between V
capa citor . Any type of ca pacitor ca n be used, but not Aluminum ele ctrolytes when operating below –25°C. The capa citance
may be increased without limit.

A 1μF capacitor (or larger) should be placed between VIN to GND.

DS9169/H-12 March 2007 www.richtek.com

and GND for stability. The part may oscillate without the

OUT

3