VIN

CIN

3 x 10 2F

RFBT

CFF 4.7 nF (OPT)

See Table

CSS

0.47 2F

(OPT)

RFBB

See Table

COUT

2 x 330 2F

LMZ23608

VOUT

Enable

Share

Clock

0

1

2

3

4

5

6

7

8

30

40

50

60

70

80

90

100

OUTPUT CURRENT (A)

6 Vin

10 Vin

12 Vin

16 Vin

20 Vin

24 Vin

30 Vin

36Vin

Product

Folder

Sample &

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Technical

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LMZ23608

SNVS708G – MARCH 2011 – REVISED AUGUST 2015

LMZ23608 8-A SIMPLE SWITCHER® Power Module With 36-V Maximum Input Voltage and

Current Sharing

1 Features

2 Applications

1

•

Integrated Shielded Inductor

•

Point-of-load Conversions from 12-V and 24-V

Input Rail

•

Simple PCB Layout

•

Time-Critical Projects

•

Frequency Synchronization Input (350 kHz to 600

kHz)

•

Space Constrained and High Thermal

Requirement Applications

•

Current Sharing Capability

•

Negative Output Voltage Applications

•

Flexible Start-up Sequencing Using External Soft-

(See AN-2027 SNVA425)

Start, Tracking and Precision Enable

•

Protection Against Inrush Currents and Faults

3 Description

Such as Input UVLO and Output Short Circuit

The LMZ23608 SIMPLE SWITCHER® power module

•

Junction Temperature Range –40°C to 125°C

is an easy-to-use step-down DC-DC solution capable

•

Single Exposed Pad and Standard Pinout for Easy

of driving up to 8-A load. The LMZ23608 is available

Mounting and Manufacturing

in an innovative package that enhances thermal

performance

and

allows

for

hand

or

machine

•

Fully Enabled for WEBENCH® Power Designer

soldering.

•

Pin Compatible With LMZ22010/08,

The LMZ23608 can accept an input voltage rail

LMZ12010/08, LMZ23610/06H, and

between 6 V and 36 V and can deliver an adjustable

LMZ13610/08/06H

and highly accurate output voltage as low as 0.8 V.

•

Electrical Specifications

The LMZ23608 only requires two external resistors

–

40-W Maximum Total Output Power

and three external capacitors to complete the power

solution.

–

Up to 8-A Output Current

–

Input Voltage Range 6 V to 36 V

The LMZ23608 is a reliable and robust design with

the following protection features: thermal shutdown,

–

Output Voltage Range 0.8 V to 6 V

input

undervoltage

lockout,

output

overvoltage

–

Efficiency up to 92%

protection, short circuit protection, output current limit,

•

Performance Benefits

and allows start-up into a prebiased output. The sync

input allows synchronization over the 350 to 600-kHz

–

High Efficiency Reduces System Heat

switching frequency range.

Generation

–

Low Radiated Emissions (EMI) Tested to

Device Information(1)(2)

EN55022 Class B Standard

PART NUMBER

PACKAGE

BODY SIZE (NOM)

–

Only 7 External Components

LMZ23608

NDY (11)

15.00 mm × 15.00 mm

–

Low Output Voltage Ripple

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

–

No External Heat Sink Required

the end of the data sheet.

(2) Peak reflow temperature equals 245°C. See SNAA214 for

–

Simple Current Sharing for Higher Current

more details.

Applications

NOTE:

EN 55022:2006, +A1:2007, FCC Part 15 Subpart B,

tested on Evaluation Board with EMI configuration

Simplified Application Schematic

Efficiency 3.3-V Output at 25°C

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.