RichTek RT9169, RT9169H Technical data

RT9169-49GVL

RT9169/H

100mA, 4μA Quiescent Current CMOS LDO Regulator

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

zUltra-Low Quiescent Current: 4μA

zLow Dropout: 450mV at 100mA

zWide Operating Voltage Ranges: 2V to 6V

zCurrent Limiting Protection

zOnly 1μF Output Capacitor Required for Stability

zHigh Power Supply Rejection Ratio

zRoHS Compliant and 100% Lead (Pb)-Free

Ordering Information

Applications

z Battery-Powered Equipment

RT9169/H-

Package Type

z Palmtops, Notebook Computers

ZL : TO-92 (L-Type)

z Hand-held Instruments

ZT : TO-92 (T-Type)

z PCMCIA Cards

X : SOT-89

V : SOT-23-3

Pin Configurations

VL : SOT-23-3 (L-Type)

B : SOT-23-5

(TOP VIEW)

Operating Temperature Range

VIN

VIN

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

3

3

Output Voltage

1

2

1

2

12 : 1.2V

13 : 1.3V

VOUT

GND

GND

VOUT

:

SOT-23-3

SOT-23-3 (L-Type)

49 : 4.9V

50 : 5.0V

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 requirements of IPC/JEDEC J-STD-020.

`Suitable for use in SnPb or Pb-free soldering processes. `100%matte tin (Sn) plating.

			VIN	1	5	VOUT
1	2	3	GND	2
GND	VIN	VOUT	EN/EN	3	4	NC
	(TAB)

SOT-89

SOT-23-5

3 VOUT 2 GND 1 VIN

Marking Information			TO-92 (L-Type)
For marking information, contact our sales representative					GND
		3
directly or through a RichTek distributor located in your		2			VIN
area, otherwise visit our website for detail.		1			VOUT
			TO-92 (T-Type)
DS9169/H-12 March 2007			www.richtek.com

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RT9169/H

Typical Application Circuit

RT9169

VIN

+

VIN

VOUT

VOUT

+

CIN

GND

COUT

1uF

1uF

VIN CIN

1uF

RT9169

Chip Enable

+	VIN	VOUT	+	VOUT
	RT9169/H		COUT
	EN/EN	GND	1uF
RT9169H

Chip Enable

Function Block Diagram			Functional Pin Description
		VIN	Pin Name	Pin Function
			VIN	Power Input
+	Current		VOUT	Output Voltage
			GND	Ground
-	Limit
EN/EN		VOUT	EN/EN	Chip Enable Control Input

Absolute Maximum Ratings (Note 1)

z Input Voltage------------------------------------------------------------------------------------------------------------	7V
z Power Dissipation, PD @ TA = 25°C
SOT-23-3 ----------------------------------------------------------------------------------------------------------------	0.4W
SOT-23-5 ----------------------------------------------------------------------------------------------------------------	0.4W
SOT-89 -------------------------------------------------------------------------------------------------------------------	0.571W
TO-92 ---------------------------------------------------------------------------------------------------------------------	0.625W
z Junction Temperature -------------------------------------------------------------------------------------------------	150°C
z Lead Temperature (Soldering, 10 sec.) ---------------------------------------------------------------------------	260°C
z Storage Temperature Range ----------------------------------------------------------------------------------------	−65°C to 150°C
z Package Thermal Resistance (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 (Machine Mode) --------------------------------------------------------------------------------------------------	200V

Recommended Operating Conditions	(Note 3)
z Junction Temperature Range ----------------------------------------------------------------------------------------	−40°C to 125°C
z Ambient Temperature Range ----------------------------------------------------------------------------------------	−40°C to 85°C
www.richtek.com	DS9169/H-12 March 2007

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RT9169/H

Electrical Characteristics

(VIN = 5.5V, CIN = 1μF, COUT = 1μF, TA = 25°C, unless otherwise specified)

		Parameter	Symbol	Test Conditions	Min	Typ	Max	Units
	Input Voltage Range		VIN		2	--	6	V
	Output Voltage Accuracy		VOUT	IL = 1mA	-2	--	+2	%
	Maximum Output Current		IMAX	VIN = VOUT + 0.6V, VIN ≥ 3.6V	100	--	--	mA
	Current Limit		ILIM	IL = 100mA	150	250	--	mA
	GND Pin Current		IG	No Load	--	4	7	μA
				IOUT = 100mA		4	10	μA
				IOUT = 1mA, VIN ≥ 3.6V	--	4	10
	Dropout Voltage		VDROP	IOUT = 50mA, VIN ≥ 3.6V	--	200	300	mV
				IOUT = 100mA, VIN ≥ 3.6V	--	450	600
	Line Regulation		VLINE	VIN = (VOUT + 0.3V) to 6V,	-0.2	--	+0.2	%/V
				VIN ≥ 3.6V, IOUT = 1mA
	Load Regulation		VLOAD	ILOUT = 0mA to 100mA	--	0.01	0.04	%/mA
	Output Noise		eNO	BW = 100Hz to 50kHz	--	250	--	μV
				COUT = 10μF
	Ripple Rejection		PSRR	F = 1kHz, COUT = 1μF	--	30	--	dB
	Standby	RT9169/H (SOT-23-5)		EN = VIN or EN = 0	--	0.1	1	μA
	Current
	EN/EN	Logic High	VIL		0.6	--	--	V
	Threshold	Logic Low	VIH		--	--	2
	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. 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.

Application Information

A 1μF (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 –25°C. The capacitance 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

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