LM26001

SW

SW

BOOT

FB

COMP

VDD

GND

FPWM

FREQ

SS

SYNC

EN

PGOOD

VIN

2

3

13

9

14

4

10

6

11

5

8

7

15

16

VIN

VOUT

VIN

VBIAS

1

12

C1

C5

R3

C8

R5

L

C4

R2

R1

C6

C3

R4

D1

VDD

17

EP

R6

EN

SYNC

+

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

LM26001, LM26001-Q1

SNVS430I – MAY 2006 – REVISED MARCH 2015

LM26001/-Q1 1.5-A Switching Regulator With High-Efficiency Sleep Mode

1 Features

3 Description

The LM26001 is a switching regulator designed for

1

•

LM26001-Q1 is an Automotive-Grade Product that

the high-efficiency requirements of applications with

is AEC-Q100 Grade 1 Qualified (–40°C to +125°C

standby modes. The device features a low-current

Operating Junction Temperature)

sleep mode to maintain efficiency under light-load

•

High-Efficiency Sleep Mode

conditions and current-mode control for accurate

regulation over a wide input voltage range. Quiescent

•

40-µA Typical Iq in Sleep Mode

current is reduced to 10 µA typically in shutdown

•

10-µA Typical Iq in Shutdown Mode

mode and less than 40 µA in sleep mode. Forced

•

3.0-V Minimum Input Voltage

PWM mode is also available to disable sleep mode.

•

4.0-V to 38-V Continuous Input Range

The LM26001 can deliver up to 1.5 A of continuous

•

1.5% Reference Accuracy

load current with a fixed current limit, through the

•

Cycle-by-Cycle Current Limit

internal N-channel switch. The part has a wide input

voltage range of 4.0 V to 38 V and can operate with

•

Adjustable Frequency (150 kHz to 500 kHz)

input voltages as low as 3 V during line transients.

•

Synchronizable to an External Clock

Operating frequency is adjustable from 150 kHz to

•

Power Good Flag

500

kHz

with

a

single

resistor

and

can

be

•

Forced PWM Function

synchronized to an external clock.

•

Adjustable Soft-Start

Other features include Power Good, adjustable soft-

•

HTSSOP-16 Exposed Pad Package

start, enable pin, input undervoltage protection, and

•

Thermal Shut Down

an internal bootstrap diode for reduced component

count.

2 Applications

Device Information(1)

•

Automotive Telematics

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Navigation Systems

LM26001

HTSSOP (16)

5.00 mm x 4.40 mm

•

In-Dash Instrumentation

LM26001-Q1

•

Battery-Powered Applications

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

•

Standby Power for Home Gateways/Set-top

the end of the datasheet.

Boxes

Typical Application Circuit

1

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.