RICHTEK RT9163-33CL, RT9163-33CX, RT9163-33CXL, RT9163-33CZL, RT9163-35CG Datasheet

RT9163

500mA Low Dropout Positive Voltage Regulator

General Description

The RT9163 is a positive low dropout regulator designed for applications requiring low dropout performance at full rated current. The device is available in fixed output voltage of 3.3V, 3.5V, and 5.0V. The RT9163 provides excellent regulation over line, load, and temperature variations.

The other features include low dropout performance at a maximum of 1.4V at 500mA, fast transient response, internal current limiting, and thermal shutdown protection of the output devices. The RT9163 is a three-terminal regulator available in surface mount SOT-89, SOT-223, and TO-252 packages.

Applications

z5V to 3.3V Linear Regulator

zLow Voltage Microcontroller, DSP… etc Power Supply

zLinear Regulator for LAN Card and CD-ROM

Ordering Information

RT9163-

Package type ZL : TO-92 X : SOT-89

XL : SOT-89, L Type L : TO-252

G : SOT-223 Type I

GL : SOT-223 Type II

GT : SOT-223 Type III

GF : SOT-223 Type IV Operating temperature range C: Commercial standard Output voltage

33 : 3.3V

35 : 3.5V

50 : 5.0V

Features

zLow Dropout, Maximum 1.4V at 500mA

zFast Transient Response

z±2% Total Output Regulation

z0.4% Line Regulation

z0.4% Load Regulation

zTO-92, SOT-89, SOT-223, and TO-252 Packages

Pin Configurations

Part Number			Pin Configurations
RT9163CZL													TOP VIEW
(Plastic TO-92)												1.		VIN
										2.				GND
										3.				VOUT
			1			2				3

RT9163CX				TOP VIEW
(Plastic SOT-89)				1.	VOUT
				2.	GND (TAB)
	1	2	3	3.	VIN
RT9163CXL				TOP VIEW
(Plastic SOT-89)				1.	GND
				2.	VIN (TAB)
	1	2	3	3. VOUT
RT9163CL				TOP VIEW
(Plastic TO-252)				1. VOUT
				2. GND (TAB)
	1	2	3	3.	VIN
RT9163CG				TOP VIEW
(Plastic SOT-223)				1.	VOUT
Type I				2.	GND (TAB)
	1	2	3	3. VIN
RT9163CGL				TOP VIEW
(Plastic SOT-223)				1.	VIN
Type II				2.	GND (TAB)
	1	2	3	3. VOUT
RT9163CGT				TOP VIEW
(Plastic SOT-223)				1.	GND
Type III				2.	VOUT (TAB)
	1	2	3	3. VIN
RT9163CGF				TOP VIEW
(Plastic SOT-223)				1.	GND
Type IV				2.	VIN (TAB)
	1	2	3	3. VOUT

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RT9163

Marking Information

Part Number

Marking

RT9163-33CZL

RTAJ

RT9163-35CZL

RTAK

RT9163-50CZL

RTA1

RT9163-33CX

A8

RT9163-35CX

A9

RT9163-50CX

AT

RT9163-33CXL

CK

RT9163-35CXL

CL

RT9163-50CXL

CM

Typical Application Circuit

VIN

RT9163

VOUT

VIN

VOUT

+

+ C2

C1

GND

_ 10 F

10 F

_

Pin Description

Pin Name

Pin Function

VOUT

Output Voltage

GND

Ground

VIN

Power Input

Function Block Diagram

VIN

Q2

Buffer

Amplifier

Thermal

Q1

Shutdown

R4

Error

Amplifier

_

Current

+

R3

Limiting

VOUT

VREF

Sensor

R1

R2

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DS9163-14 April 2002

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RT9163

Absolute Maximum Ratings

zInput Voltage 15V

zPower Dissipation, PD @ TA = 25°C

TO-92 0.6W SOT-89 0.5W

zPackage Thermal Resistance

TO-92, θJA 160°C/W SOT-89, θJC 100°C/W SOT-89, θJA 300°C/W SOT-223, θJC 15°C/W SOT-223, θJA 60°C/W TO-252, θJC 15°C/W TO-252, θJA 56°C/W

zOperating Junction Temperature Range −40°C to 125°C

zStorage Temperature Range −65°C to 150°C

Electrical Characteristics

(VIN = 5V, TA = 25°C, unless otherwise specified)

	Parameter		Symbol	Test Conditions	Min	Typ	Max	Units
		RT9163-33			3.235	3.300	3.365
	Output Voltage (1)	RT9163-35	VOUT		3.430	3.500	3.570	V
		RT9163-50		VIN = 7A	4.900	5.000	5.100
	Line Regulation (1)	RT9163-33		VIN = 5V ~ 15V	--	0.1	0.4
		RT9163-35	∆VLINE					%
		RT9163-50		VIN = 7V ~ 15V	--	0.1	0.4
	Load Regulation (1)		∆VLOAD	IL = 0 ~ 500mA	--	0.2	0.4	%
	Dropout Voltage (2)		VDROP	∆VOUT = 1%	--	1.3	1.4	V
	Current Limit		ILIMIT	Load = 1Ω	550	--	--	mA
	Quiescent Current		IQ		--	4.5	8	mA
	Temperature Coefficient		TC		--	0.005	--	%/°C
	Temperature Stability		TS		--	0.5	--	%
	RMS Output Noise (3)				--	0.003	--	%/VOUT

Notes:

(1)Low duty cycle pulse tested with Kelvin connections.

(2)Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below the value measured with a 1V differential.

(3)Bandwidth of 10 Hz to 10 kHz.

DS9163-14 April 2002	www.richtek-ic.com.tw
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