Datasheet > LM60440_V01

LM60440_V01

更新时间： 2024-09-17 02:50:03

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
38页	1812K
描述
LM604x0 3.8-V to 36-V, 3-A, and 4-A Ultra-Small Synchronous Step-Down Converter

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LM60440, LM60430

SNVSBN5A –FEBRUARY 2020–REVISED JUNE 2020

LM604x0 3.8-V to 36-V, 3-A, and 4-A Ultra-Small Synchronous Step-Down Converter

1 Features

3 Description

The LM604x0 regulator is an easy-to-use,

synchronous, step-down DC/DC converter that

delivers best-in-class efficiency for rugged industrial

applications. The LM60430 drives up to 3-A of load

current, and the LM60440 is industry's smallest 4A

step-down converter.

•

Functional Safety-Capable

–

Documentation available to aid functional

safety system design

•

Low EMI and switching noise

–

Meets CISPR22 class 5 standard

The LM604x0 is available in an ultra-miniature WQFN

package with wettable flanks and a standard QFN

pin-out with a thermal pad to enhance thermal

performance. This enhanced QFN package features

extremely small parasitic inductance and resistance,

enabling very high efficiency while minimizing switch

node ringing and dramatically reducing EMI.

Enhanced QFN package minimizes parasitic

inductance and switch node ringing

Configured for rugged industrial applications

–

Standard QFN footprint: single large thermal

pad and all pins accessible from perimeter

–

Pin compatible variants:

–

LM60440 (36 V, 4 A)

LM60430 (36 V, 3 A)

The LM604x0 uses peak-current-mode control to

automatically fold back frequency at light load to

ensure exceptional efficiency across the entire load

range. The low power dissipation paired with a

thermally optimized QFN package enables a power

dense solution size. In addition the device requires

few external components and has a pinout designed

for simple PCB layout. The small solution size and

feature set of the LM604x0 are designed to simplify

implementation for a wide range of end equipment.

–

Junction temperature range –40°C to +150°C

Frequency: 400 kHz, 1 MHz

Output voltage range: 1 V to 24 V

•

High efficiency power conversion at all loads

–

Peak efficiency > 95%

90% PFM efficiency at 10-mA, 12 V_IN, 5 V_OUT

Low operating quiescent current of 25 µA

This device is also available in an AEC-Q100-

qualified version.

Create a custom design using the LM60440 with

the WEBENCH^®Power Designer

Device Information⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (NOM)

2 Applications

LM60440

WQFN-13

3.00 mm × 2.00 mm

•

Industrial PC and CPU (PLC controller)

Servo drive and AC drive control module

Medical and instrumentation applications

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

the end of the data sheet.

space

Efficiency versus Output Current

V_OUT= 5 V, 400 kHz

Simplified Schematic

BOOT

100

V_IN

C_IN

VIN

C_BOOT

V_OUT

C_OUT

PGND

VCC

R_FBT

C_VCC

12V

R_FBB

AGND

24V

0.5

1.5

2.5

Output Current (A)

3.5

4.5

Eff_

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...38

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与LM60440_V01相关器件

型号	品牌	获取价格	描述	数据表
LM60440AQRPKRQ1	TI	获取价格	采用增强型 EMI QFN 可湿性侧面封装的汽车类 36V、4A 同步转换器 \| RPK
LM60440ARPKR	TI	获取价格	LM604x0 3.8-V to 36-V, 3-A, and 4-A Ultra-Small Synchronous Step-Down Converter
LM60440DRPKR	TI	获取价格	采用增强型 EMI QFN 封装、具有可湿性侧面和外部焊盘的 36V、4A 同步转换器 \|
LM60440-Q1	TI	获取价格	采用增强型 EMI QFN 可湿性侧面封装的汽车类 36V、4A 同步转换器
LM604ACM	NSC	获取价格	4 CHANNEL MUX-AMP
LM604ACN	NSC	获取价格	4 CHANNEL MUX-AMP
LM604AMJ	NSC	获取价格	4 CHANNEL MUX-AMP
LM604AMJ-MIL	ETC	获取价格	Voltage-Feedback Operational Amplifier
LM604CM	NSC	获取价格	4 CHANNEL MUX-AMP
LM604CN	NSC	获取价格	4 CHANNEL MUX-AMP

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