Richtek RT9010-12GJ6, RT9010-12PJ6, RT9010-13GJ6, RT9010-18PJ6, RT9010-25PJ6, RT9010-28PJ6, RT9010-30PJ6, RT9010-33GJ6, RT9010-33PJ6 Schematic [ru]

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RT9010

300mA LDO Regulator with POR

General Description

RT9010 is a low noise, and low dropout with the sourcing ability up to 300mAand 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 (VOUT < 0.4V) providing 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 requirements of IPC/JEDEC J-STD-020.

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

Features

zWide Operating Voltage Ranges : 2.5V to 5.5V

zLow-Noise for RF Application

zNo Noise Bypass Capacitor Required

zFast Response in Line/Load Transient

zTTL-Logic-Controlled Shutdown Input

zLow Temperature Coefficient

z300mA LDO Outputs

zHigh Accuracy ±2%

zShort Circuit Protection

zThermal Shutdown Protection

zCurrent Limit Protection

zShort Circuit Thermal Folded Back Protection

zTiny TSOT-23-6 Package

zRoHS Compliant and 100% Lead (Pb)-Free

Applications

zCDMA/GSM Cellular Handsets

zBattery-Powered Equipment

zLaptop, Palmtops, Notebook Computers

zHand-Held Instruments

zPCMCIA Cards

zPortable Information Appliances

Pin Configurations

(TOP VIEW)

VIN EN SET

6 5 4

1 2 3

VOUT GND POR

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.

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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Richtek RT9010-12GJ6, RT9010-12PJ6, RT9010-13GJ6, RT9010-18PJ6, RT9010-25PJ6, RT9010-28PJ6, RT9010-30PJ6, RT9010-33GJ6, RT9010-33PJ6 Schematic

RT9010

Typical Application Circuit

 

 

 

 

100K

 

VIN

1uF

6

VIN

POR 3

POR

 

 

 

RT9010

 

 

 

 

 

 

 

Chip Enable

5

EN

VOUT 1

VOUT

 

 

 

1uF

 

 

4

SET

GND 2

 

 

CDELAY

 

 

 

 

Functional Pin Description

Pin No.

Pin Name

Pin Function

 

 

 

 

 

 

1

VOUT

Output Voltage.

 

 

 

2

GND

Common Ground.

 

 

 

3

POR

Power-On Reset Output : Open-drain output. Active low indicates an

output under voltage condition on regulator.

 

 

 

 

 

4

SET

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

delay.

 

 

5

EN

Chip Enable (Active High).

 

 

 

6

VIN

Supply Input Voltage.

 

 

 

Function Block Diagram

EN

Shutdown

VIN

 

 

 

 

 

 

and

 

 

 

 

Logic Control

 

 

VREF

 

 

 

 

-

 

MOS Driver

 

 

+

 

 

 

Error

VOUT

 

 

Amplifier

 

 

 

 

Current Limit

 

 

 

 

and

 

 

 

 

Thermal

 

 

 

 

Protection

 

 

 

 

GND

 

 

SET

 

POR & Delay

 

 

www.richtek.com

 

DS9010-00

April

2006

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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, PD @ TA = 25°C

 

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

Electrical Characteristics

(VIN = VOUT + 1V, VEN = VIN, CIN = COUT = 1μF, TA = 25°C, unless otherwise specified.)

Parameter

 

Symbol

Test Conditions

Min

Typ

Max

Units

Input Voltage

 

 

VIN

VIN = 2.5V to 5.5V

2.5

--

5.5

V

Dropout Voltage

(Note 5)

VDROP

IOUT = 150mA, VOUT > 2.8V

--

120

--

mV

IOUT = 300mA, VOUT > 2.8V

--

240

--

mV

 

 

 

 

Output Voltage Range

 

VOUT

 

1.2

--

3.6

V

Output Voltage Accuracy

VOUT

IOUT = 1mA

−2

--

+2

%

Line Regulation

 

 

VLINE

VIN = (VOUT + 0.3V) to 5.5V or

--

--

0.2

%/V

 

 

VIN > 2.5V, whichever is larger

 

 

 

 

 

 

 

 

Load Regulation

 

VLOAD

1mA < IOUT < 300mA

--

--

0.6

%

Current Limit

 

 

ILIM

RLOAD = 1Ω

330

450

700

mA

Quiescent Current

 

IQ

VEN > 1.5V

--

58

80

μA

Shutdown Current

 

IQ_SD

VEN < 0.4V

--

--

1

μA

EN Threshold Voltage

Logic-High

VIH

VIN = 2.5V to 5.5V, Power On

1.5

--

--

V

Logic-Low

VIL

VIN = 2.5V to 5.5V, Shutdown

--

--

0.4

 

 

 

Output Voltage TC

 

 

 

--

100

--

ppm/°C

 

 

 

 

 

 

 

 

Thermal Shutdown

 

TSD

 

--

170

--

°C

Thermal Shutdown Hysteresis

TSD

 

--

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

 

f =100Hz

--

−65

--

dB

PSRR

 

 

 

 

 

f =1kHz

--

−60

--

dB

Loading=10mA

 

 

 

 

 

 

 

 

f =10kHz

--

−50

--

dB

 

 

 

 

 

 

 

PSRR

 

f =100Hz

--

−65

--

dB

PSRR

 

 

 

 

 

f =1kHz

--

−50

--

dB

Loading=150mA

 

 

 

 

 

 

 

 

f =10kHz

--

−50

--

dB

 

 

 

 

 

 

 

 

VTHL

Low Threshold, % of nominal VOUT

90

--

--

%

 

(Flag On)

Reset Threshold

 

 

 

 

 

 

 

 

 

 

 

VTHH

High Threshold, % of nominal VOUT

--

--

96

%

 

 

(Flag Off)

 

 

 

 

 

 

 

 

 

 

 

 

 

POR Output Logic Low Voltage

VPOR_L

IL = 250μA

--

0.02

0.1

V

POR Leakage Current

IPOR

Flag off

−1

0.01

1

μA

Set pin current source

 

VSET = 0

0.60

1.25

1.70

μA

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. 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.

Note 5. The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL) − 100mV.

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