Richtek RT9010-12GJ6, RT9010-12PJ6, RT9010-13GJ6, RT9010-18PJ6, RT9010-25PJ6 Schematic [ru]

RT9010

300mA LDO Regulator with POR

General Description

RT9010 is a low noise, and low dropout with the sourcing

ability up to 300mA and power-on reset function. The range

of output voltage is from 1.2V to 3.6V by operating from

2.5V to 5.5V input.

RT9010 offers 2% accuracy, extremely low dropout voltage

(240mV @ 300mA), and extremely low ground current.

The shutdown current is near zero current which is suitable

for battery-power devices. Other features include current

limiting, over temperature, output short circuit protection.

RT9010 is short circuit thermal folded back protected.

RT9010 lowers its OTP trip point from 165°C to 110°C

when output short circuit occurs (V

< 0.4V) providing

OUT

maximum safety to end users.

RT9010 can operate stably with very small ceramic output

capacitors, reducing required board space and component

cost. RT9010 is available in fixed output voltages in the

TSOT-23-6 package.

Ordering Information

RT9010-

Package Type
J6 : TSOT-23-6

Operating Temperature Range
P : Pb Free with Commercial Standard

Output Voltage
12 : 1.20V
13 : 1.30V
:
:
35 : 3.50V
36 : 3.60V
1H : 1.85V
2F : 2.65V
2H : 2.85V

Note :

RichTek Pb-free 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.

Features

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Wide Operating Voltage Ranges : 2.5V to 5.5V

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z Low-Noise for RF Application

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z No Noise Bypass Capa citor Required

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z Fast Response in Line/Load Transient

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z TTL-Logic-Controlled Shutdown Input

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z Low Temperature Coefficient

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z 300mA LDO Outputs

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z High Accuracy

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z Short Circuit Protection

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z Thermal Shutdown Protection

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z Current Limit Protection

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z Short Circuit Thermal Folded Back Protection

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z Tiny TSOT-23-6 Package

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

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±±

±2%

±±

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

Pin Configurations

(TOP VIEW)

VIN EN SET

4

56

23

1

VOUT GND

TSOT-23-6

Note : There is no pin1 indicator on top mark for TSOT-23-6

type, and pin 1 will be lower left pin when reading top mark

from left to right.

POR

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.

DS9010-00 April 2006 www.richtek.com

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RT9010

Typical Application Circuit

100K

V

IN

1uF

Chip Enable

6

VIN

RT9010

5

EN

42

SET

C

DELAY

Functional Pin Description

Pin No. Pin Name Pin Fun cti on

1 VOUT Output Voltage.

2 GND Common Ground.

3 POR

4 SET

5 EN Chip Enable (Active High).

Power-On Reset Output : Open-drain output. Active low indicates an
output under voltage condition on regulator.

Delay Set Input. Connect external capacitor to GND to set the internal
delay.

POR

VOUT

GND

3

1

1uF

POR

V

OUT

6 VIN Supply Input Voltage.

Function Block Diagram

EN

V

REF

Shutdown

and

Logic Control

-

+

Error

Amplifier

VIN

MOS Driver

VOUT

Current Limit

and

Thermal

Protection

GND

POR & DelaySET

DS9010-00 April 2006www.richtek.com

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RT9010

Absolute Maximum Ratings (Note 1)

z Supply Input Voltage ------------------------------------------------------------------------------------------------------ −0.3V to 6V

z Other I/O Pin Voltages --------------------------------------------------------------------------------------------------- −0.3V to 6V

z Power Dissipation, P

TSOT-23-6 ------------------------------------------------------------------------------------------------------------------- 0.455W

z Package Thermal Resistance (Note 4)

TSOT-23-6, θJA------------------------------------------------------------------------------------------------------------- 220°C/W

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

z Junction Temperature ----------------------------------------------------------------------------------------------------- 150°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 Enable Input Voltage------------------------------------------------------------------------------------------------------ 0V to 5.5V
z Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 85°C

@ T

D

= 25°C

A

Electrical Characteristics

(V

= V

OUT

+ 1V, V

IN

Parameter Symbol Test Conditions Min Typ Max Units

Input Voltage VIN V

Dropout Voltage (Note 5) V

Output Voltage Range V

Output Voltage Accuracy ΔV

Line Regulation ΔV

Load Regulation ΔV

Current Limit I

Quiescent Current IQ VEN > 1.5V -- 58 80 μA

Shutdown Current I

EN Threshold Voltage

Output Voltage TC -- 100 -- ppm/°C

= VIN, C

EN

Logic-High

Logic-Low V

= C

IN

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

OUT

= 2.5V to 5.5V 2.5 -- 5.5 V

IN

I

DROP

1.2 -- 3.6 V

OUT

I

OUT

LINE

LOAD

R

LIM

VEN < 0.4V -- -- 1 μA

Q_SD

V

V

IH

VIN = 2.5V to 5.5V, Shutdown -- -- 0.4

IL

= 300mA, V

I

OUT

= 1mA −2 -- +2 %

OUT

= (V

V

IN

V

> 2.5V, whichever is larger

IN

1mA < I

LOAD

= 2.5V to 5.5V, Power On 1.5 -- --

IN

+ 0.3V) to 5.5V or

OUT

< 300mA -- -- 0.6 %

OUT

= 1Ω 330 450 700 mA

= 150mA, V

OUT

> 2.8V -- 120 -- mV

OUT

> 2.8V -- 240 -- mV

OUT

-- -- 0.2 %/V

V

Thermal Shutdown TSD -- 170 -- °C

Thermal Shutdown Hysteresis ΔTSD -- 40 -- °C

To be continued

DS9010-00 April 2006 www.richtek.com

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RT9010

Parameter Symbol Test Conditions Min Typ Max Units

PSRR
Loading=10mA

PSRR
Loading=150mA

PSRR

PSRR

f =100Hz -- −65 -- dB

f =1kHz -- −60 -- dB

f =10kHz -- −50 -- dB

f =100Hz -- −65 -- dB

f =1kHz -- −50 -- dB

f =10kHz -- −50 -- dB

V

THL

Low Threshold, % of nominal V
(Flag On)

OUT

90 -- -- %

Reset Threshold

High Threshold, % of nominal V
(Flag Off)

Flag off −1 0.01 1 μA

POR Output Logic Low Voltage V

POR Leakage Current I

V

THH

POR_L IL

POR

Set pin current source V

= 250μA -- 0.02 0.1 V

= 0 0.60 1.25 1.70 μA

SET

OUT

-- -- 96 %

Set pin threshold POR = high -- 1.4 -- V

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 recommended.
Note 3. The device is not guaranteed to function outside its operating conditions.
Note 4. θ

Note 5. The dropout voltage is defined as V

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.

-V

IN

, which is measured when V

OUT

OUT

is V

OUT(NORMAL)

− 100mV.

DS9010-00 April 2006www.richtek.com

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