LDORT9193-33Datasheet数据手册6Vin300mA_RT91933-33

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RT9193

DS9193-09 March 2007 www.richtek.com

300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator

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.

Ordering Information

General Description

The RT9193 is designed for portable RF and wireless

applications with demanding performance and space

requirements. The RT9193 performance is optimized for

battery-powered systems to deliver ultra low noise and

low quiescent current. A noise bypass pin is available for

further reduction of output noise. Regulator ground current

increases only slightly in dropout, further prolonging the

battery life. The RT9193 also works with low-ESR ceramic

capacitors, reducing the amount of board space necessary

for power applications, critical in hand-he

ld wireless

devices. The RT9193 consumes less than 0.01μA in

shutdown mode and has fast turn-on time less than 50μs.

The other features include ultra low dropout voltage, high

output accuracy, current limiting protection, and high ripple

rejection ratio. Available in the 5-lead of SC-70, SOT-23

and WDFN-6L 2x2 packages.

Features

Ultra-Low-Noise for RF Application

z Ultra-Fast Response in Line/Load Transient

z Quick Start-Up (Typically 50

μμ

μs)

z < 0.01

μμ

μA Standby Current When Shutdown

z Low Dropout : 220mV @ 300mA

z Wide Operating Voltage Ranges : 2.5V to 5.5V

z TTL-Logic-Controlled Shutdown Input

z Low Temperature Coefficient

z Current Limiting Protection

z Thermal Shutdown Protection

z Only 1

μμ

μF Output Capacitor Required for Stability

z High Power Supply Rejection Ratio

z Custom Voltage Available

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

Applications

z CDMA/GSM Cellular Handsets

z Battery-Powered Equipment

z Laptop, Palmtops, Notebook Computers

z Hand-Held Instruments

z PCMCIA Cards

z Portable Information Appliances

Note :

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.

Pin Configurations

(TOP VIEW)

SC-70-5/SOT-23-5 WDFN-6L 2x2

VIN

GND

VOUT

GND

VOUTVIN

RT9193-

Package Type

U5 : SC-70-5

B : SOT-23-5

QW : WDFN-6L 2x2 (W-Type)

Output Voltage

15 : 1.5V

16 : 1.6V

49 : 4.9V

50 : 5.0V

1H : 1.85V

2H : 2.85V

4G : 4.75V

Operating Temperature Range

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

RT9193

DS9193-09 March 2007 www.richtek.com

Electrical Characteristics

= V

OUT

+ 1V, C

= C

OUT

= 1μF, C

= 22nF, T

= 25°C, unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Units

Output Voltage Accuracy ΔV

OUT

= 1mA −2 -- +2 %

Current Limit I

LIM

LOAD

= 1Ω 360 400 -- mA

Quiescent Current I

≥

1.2V,

OUT

= 0mA -- 90 130 μA

OUT

= 200mA, V

OUT

> 2.8V 170 200

Dropout Voltage (Note 5) V

DROP

OUT

= 300mA, V

OUT

> 2.8V -- 220 300

Line Regulation ΔV

LINE

= (V

OUT

+ 1V) to 5.5V,

OUT

= 1mA

-- -- 0.3 %

Load Regulation ΔV

LOAD

1mA < I

OUT

< 300mA -- -- 0.6 %

Standby Current I

STBY

= GND, Shutdown -- 0.01 1 μA

EN Input Bias Current I

IBSD

= GND or VIN -- 0 100 nA

Logic-Low Voltage

= 3V to 5.5V, Shutdown -- -- 0.4

EN Threshold

Logic-High Voltage

= 3V to 5.5V, Start-Up 1.2 -- --

Output Noise Voltage e

10Hz to 100kHz, I

OUT

= 200mA

OUT

= 1μF

-- 100 -- μV

RMS

f = 100Hz -- −70 --

Power Supply

Rejection Rate

f = 10kHz

PSRR C

OUT

= 1μF, I

OUT

= 10mA

-- −50 --

Thermal Shutdown Temperature T

-- 165 -- °C

Absolute Maximum Ratings (Note 1)

z Supply Input Voltage ------------------------------------------------------------------------------------------------------ 6V

z Power Dissipation, P

@ T

= 25°C

SC-70-5 ---------------------------------------------------------------------------------------------------------------------- 300mW

SOT-23-5 -------------------------------------------------------------------------------------------------------------------- 400mW

WDFN-6L 2x2 -------------------------------------------------------------------------------------------------------------- 606mW

z Package Thermal Resistance (Note 4)

SOT-70-5, θ

--------------------------------------------------------------------------------------------------------------- 333°C/W

SOT-23-5, θ

--------------------------------------------------------------------------------------------------------------- 250°C/W

WDFN-6L 2x2, θ

--------------------------------------------------------------------------------------------------------- 165°C/W

z Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C

z Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C

z Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C

z ESD Susceptibility (Note 2)

HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV

MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V

Recommended Operating Conditions (Note 3)

z Supply Input Voltage ------------------------------------------------------------------------------------------------------ 2.5V to 5.5V

z EN Input Voltage ----------------------------------------------------------------------------------------------------------- 0V to 5.5V

z Junction Temperature Range --------------------------------------------------------------------------------------------

−40°C to 125°C

z Ambient Temperature Range --------------------------------------------------------------------------------------------

−40°C to 85°C

To be continued

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