LM5954L-XX-SH2-T [UTC]

HIGH INPUT VOLTAGE, LOW QUIESCENT CURRENT, 300mA LDO REGULATOR; 高输入电压，低静态电流， 300毫安LDO稳压器


型号：	LM5954L-XX-SH2-T
厂家：	Unisonic Technologies
描述：	HIGH INPUT VOLTAGE, LOW QUIESCENT CURRENT, 300mA LDO REGULATOR 高输入电压，低静态电流， 300毫安LDO稳压器稳压器输入元件
文件：	总5页 (文件大小：153K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

UNISONIC TECHNOLOGIES CO., LTD

LM5954

Preliminary

LINEAR INTEGRATED CIRCUIT

HIGH INPUT VOLTAGE, LOW

QUIESCENT CURRENT,

300mA LDO REGULATOR

DESCRIPTION

The UTC LM5954 is a low ground current linear regulator which

operates with input voltage from 6.5V ~ 25V and delivers output

current up to 300mA. Typical dropout voltage is only 450mV at

300mA loading.

HSOP-8

The UTC LM5954 has many protection functions including over

temperature and current limit which prevent the device from

thermal over-load and current over-load.

FEATURES

* Wide Operating Voltage : 6.5V~25V

* Ultra Low Ground Current :120μA

* High Output Accuracy : ±2% over temperature

* Excellent Load/Line Transient

* Low Dropout Voltage : 450mv @ 300mA

* Built-in Current Limit Protection

* Built-in Over Temperature Protection

* Zero Shutdown Current

ORDERING INFORMATION

Ordering Number

Lead Free

Package

Packing

Halogen Free

LM5954L-xx-SH2-R

LM5954L-xx-SH2-T

LM5954G-xx-SH2-R

LM5954G-xx-SH2-T

HSOP-8

Tape Reel

Tube

Note: xx: Output Voltage, refer to Marking Information.

LM5954L-xx-SH2-R

(1)Packing Type

(1) R: Tape Reel, T: Tube

(2)Package Type

(3)Output Voltage Code

(4)Lead Free

(2) SH2: HSOP-8

(3) xx: Refer to Marking Information

(4) G: Halogen Free, L: Lead Free

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LM5954

Preliminary

LINEAR INTEGRATED CIRCUIT

MARKING INFORMATION

PACKAGE

VOLTAGE CODE

MARKING

Date Code

UTC

LM5954

G: Halogen Free

L: Lead Free

HSOP-8

AD :ADJ

Voltage Code

Lot Code

PIN CONFIGURATION

PIN DESCRIPTION

PIN NO.

PIN NAME

V_OUT

DESCRIPTION

Output pin

2, 3, 6

No Connection

ADJ

ADJ: output feedback pin

ON/OFF pin, low=output ON; high=output OFF

GND

V_IN

Ground

Input pin

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LM5954

Preliminary

LINEAR INTEGRATED CIRCUIT

BLOCK DIAGRAM

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LM5954

Preliminary

LINEAR INTEGRATED CIRCUIT

ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

-0.3~+27

UNIT

Supply Voltage

V_CC

V_FB

Feedback Voltage

Shutdown Voltage

Power Dissipation

Junction Temperature

Storage Temperature

-1.5~+27

V_SHDN

P_D

-0.3~+27

Internally Limited

+125

T_J

°C

T_STG

-65~+150

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA

PARAMETER

SYMBOL

θ_JA

RATINGS

UNIT

°C/W

Junction to Ambient

Junction to Case

θ_JC

ELECTRICAL CHARACTERISTICS

(Unless otherwise specified, these specifications apply over V_IN=V_OUT+2.5V, C_IN=1µF, C_OUT=2.2mF,T_A=-40°C ~ 85°C.

Typical values refer to T_A=25°C.)

PARAMETER

Input Voltage

SYMBOL

V_IN

TEST CONDITIONS

MIN TYP MAX UNIT

6.5

-2

Output Voltage Accuracy

Output Voltage Range

V_OUT

I_OUT=0.1mA

120

140

Quiescent Current

I_Q

I_OUT=300mA

Load Current Range

Reference Voltage

Line Regulation

I_OUT

V_REF

300

-2% 1.235 +2%

ΔV_OUT

V_OUT+2.5V<V_IN<25V, I_OUT=1mA

0.1mA<I_OUT<300mA

I_OUT=0.1mA

0.1

0.2

0.5

Load Regulation

150

600

Dropout Voltage

V_D

I_OUT=300mA

380

450

PROTECTION

Over Temperature Shutdown

Circuit Current Limit

Short Current

OTS

I_LIMIT

150

400

°C

V_IN=V_OUT+2.5V

V_OUT=0V

350

500

I_SHORT

SHUTDOWN

Input High Voltage

Input Low Voltage

EN pin Input Bias Current

Shutdown Supply Current

V_EN

0.7

600

I_EN

V_EN=25V

450

0.1

μA

I_QSHDN

EN=High, V_IN=19V

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LM5954

Preliminary

LINEAR INTEGRATED CIRCUIT

TYPICAL APPLICATION CIRCUIT

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.

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