Datasheet > LM43600PWPR

LM43600PWPR

更新时间： 2024-11-26 01:06:31

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
53页	1601K
描述
SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage Converter

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LM43600

SNVSA43A –AUGUST 2014–REVISED AUGUST 2014

LM43600 SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage

Converter

1 Features

3 Description

The LM43600 SIMPLE SWITCHER® regulator is an

easy to use synchronous step-down DC-DC

converter capable of driving up to 0.5 A of load

current from an input voltage ranging from 3.5 V to 36

•

33 µA Quiescent Current in Regulation

High Efficiency at Light Load (DCM and PFM)

Meets EN55022/CISPR 22 EMI standards

Integrated Synchronous Rectification

•

(42

transient). The LM43600 provides

exceptional efficiency, output accuracy and drop-out

voltage in a very small solution size. An extended

family is available in 1 A, 2 A and 3 A load current

options in pin-to-pin compatible packages. Peak

current mode control is employed to achieve simple

control loop compensation and cycle-by-cycle current

limiting. Optional features such as programmable

switching frequency, synchronization, power-good

flag, precision enable, internal soft-start, extendable

soft-start, and tracking provide a flexible and easy to

use platform for a wide range of applications.

Discontinuous conduction and automatic frequency

modulation at light loads improve light load efficiency.

The family requires few external components and pin

arrangement allows simple, optimum PCB layout.

Protection features include thermal shutdown, V_CC

under-voltage lockout, cycle-by-cycle current limit,

and output short circuit protection. The LM43601

device is available in the HTSSOP / PWP 16 leaded

package (5.1 mm x 6.6 mm x 1.2 mm) with 0.65 mm

lead pitch. Pin to pin compatible with LM46000,

LM46001, LM46002, LM43601, LM43602, LM43603.

Adjustable Frequency Range: 200 kHz to 2.2 MHz

(500 kHz default)

•

Frequency Synchronization to External Clock

Internal Compensation

Stable with Almost Any Combination of Ceramic,

Polymer, Tantalum, and Aluminum Capacitors

•

Power-Good Flag

Soft-Start into Pre-Biased Load

Internal Soft-Start: 4.1 ms

Extendable Soft-Start Time by External Capacitor

Output Voltage Tracking Capability

Precision Enable to Program System UVLO

Output Short Circuit Protection with Hiccup Mode

Over Temperature Thermal Shutdown Protection

2 Applications

•

Industrial Power Supplies

Telecommunications Systems

Sub-AM Band Automotive

Device Information⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (NOM)

General Purpose Wide V_INRegulation

High Efficiency Point-Of-Load Regulation

LM43600

HTSSOP (16)

5.10 mm x 6.60 mm

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

the end of the datasheet.

4 Simplified Schematic

Radiated Emission Graph

with V_IN= 12 V, V_OUT= 3.3 V, F_S= 500 kHz, I_OUT

0.5 A

V_OUT

V_IN

VIN

C_OUT

C_IN

LM43600

C_BOOT

dBuV

Vertical Polarization

CBOOT

BIAS

Horizontal Polarization

ENABLE

PGOOD

C_BIAS

C_FF

EN 55022 Class B Limit

R_FBT

SS/TRK

VCC

SYNC

AGND

R_FBB

Evaluation Board Emissions

C_VCC

100

Frequency (MHz)

1000

PGND

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...53

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LM43600PWPR 替代型号

型号	品牌	替代类型	描述	数据表
LM43600PWPT	TI	类似代替	SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage Converter
LM43600PWP	TI	类似代替	SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage Converter

与LM43600PWPR相关器件

型号	品牌	获取价格	描述	数据表
LM43600PWPT	TI	获取价格	SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage Converter
LM43600-Q1	TI	获取价格	SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage
LM43600-Q1_15	TI	获取价格	SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage
LM43600QPWPRQ1	TI	获取价格	SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage
LM43600QPWPTQ1	TI	获取价格	SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage
LM43601	TI	获取价格	3.5V 至 36V、1A 同步降压转换器
LM43601AQPWPRQ1	TI	获取价格	通过汽车级认证的 3.5V 至 36V、1A 同步降压电压转换器 \| PWP \| 16 \|
LM43601AQPWPTQ1	TI	获取价格	通过汽车级认证的 3.5V 至 36V、1A 同步降压电压转换器 \| PWP \| 16 \|
LM43601PWP	TI	获取价格	3.5V 至 36V、1A 同步降压转换器 \| PWP \| 16 \| -40 to 125
LM43601PWPR	TI	获取价格	3.5V 至 36V、1A 同步降压转换器 \| PWP \| 16 \| -40 to 125

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