Datasheet > LM26003

LM26003

更新时间： 2024-11-23 02:58:19

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德州仪器 - TI		/
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LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode

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LM26003, LM26003-Q1

SNVS576F –AUGUST 2008–REVISED FEBRUARY 2015

LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode

1 Features

3 Description

The LM26003 is a switching regulator designed for

the high-efficiency requirements of applications with

standby modes. The device features a low-current

sleep mode to maintain efficiency under light-load

conditions and current-mode control for accurate

regulation over a wide input voltage range. Quiescent

current is reduced to 10.8 µA typically in shutdown

mode and less than 40 µA in sleep mode. Forced

PWM mode is also available to disable sleep mode.

•

LM26003-Q1 is an Automotive-Grade Product

That is AEC-Q100 Grade 1 Qualified (–40°C to

+125°C Operating Junction Temperature)

•

High-Efficiency Sleep Mode

40-µA Typical Iq in Sleep Mode

10.8-µA Typical Iq in Shutdown Mode

3.0-V Minimum Input Voltage

4.0-V to 38-V Continuous Input Range

1.5% Reference Accuracy

The LM26003 device can deliver up to 3 A of

continuous load current with a fixed current limit,

through the internal N-channel switch. The part has a

wide input voltage range of 4.0 V to 38 V and can

operate with input voltages as low as 3 V during line

transients.

Cycle-by-Cycle Current Limit

Adjustable Frequency (150 kHz to 500 kHz)

Synchronizable to an External Clock

Power Good Flag

Operating frequency is adjustable from 150 kHz to

Forced PWM Function

500 kHz with

a single resistor and can be

Adjustable Soft-Start

synchronized to an external clock.

20-Pin HTSSOP Package

Other features include Power Good, adjustable soft-

start, enable pin, input undervoltage protection, and

an internal bootstrap diode for reduced component

count.

Thermal Shut Down

2 Applications

•

Automotive Telematics

Navigation Systems

Device Information⁽¹⁾

PART NUMBER

LM26003

PACKAGE

BODY SIZE (NOM)

In-Dash Instrumentation

Battery-Powered Applications

HTSSOP (20)

6.50 mm x 4.40 mm

LM26003-Q1

Standby Power for Home Gateways and Set-Top

Boxes

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

4 Typical Application Circuit

VIN

VBIAS

VIN

VOUT

VIN

AVIN

BOOT

PGOOD

LM26003

VDD

SYNC

COMP

VDD

SYNC

FREQ

FPWM

PGND

AGND

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...32

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与LM26003相关器件

型号	品牌	获取价格	描述	数据表
LM26003_15	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM26003MH	NSC	获取价格	3A Switching Regulator with High Efficiency Sleep Mode
LM26003MH/NOPB	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM26003MHX	NSC	获取价格	3A Switching Regulator with High Efficiency Sleep Mode
LM26003MHX/NOPB	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM26003-Q1	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM26003QMH/NOPB	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM26003QMHX/NOPB	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM2601	NSC	获取价格	Adapter Interface Circuit
LM2601616AB	LIGHTKEY	获取价格	LM2601616A/B Series â 1.60 inch 16x16 Dot M

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