Datasheet > LM43600-Q1_15

LM43600-Q1_15

更新时间： 2024-11-24 01:09:55

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
53页	1566K
描述
SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage

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LM43600-Q1

SNVSA99A –JULY 2015–REVISED AUGUST 2015

LM43600-Q1 SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage

Converter

1 Features

3 Description

The LM43600-Q1 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

•

AEC-Q100 Qualified (–40°C to +125°C Operating

Junction Temperature)

•

33 µA Quiescent Current in Regulation

High Efficiency at Light Load (DCM and PFM)

Tested to EN55022/CISPR 22 EMI standards

Integrated Synchronous Rectification

(42 V transient). The LM43600-Q1 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 LM43600-Q1

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

Device Information⁽¹⁾

•

Sub-AM Band Automotive

Industrial Power Supplies

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LM43600-Q1

HTSSOP (16)

5.1 mm x 6.6 mm

Telecommunications Systems

General Purpose Wide V_INRegulation

High Efficiency Point-Of-Load Regulation

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

the end of the datasheet.

4 Simplified Schematic

Radiated Emission Graph

V_IN= 12 V, V_OUT= 3.3 V, F_S= 500 kHz, I_OUT= 0.5 A

V_OUT

V_IN

VIN

dBuV

C_OUT

Vertical Polarization

C_IN

LM43600-Q1

C_BOOT

Horizontal Polarization

CBOOT

BIAS

ENABLE

PGOOD

EN 55022 Class B Limit

C_BIAS

C_FF

R_FBT

SS/TRK

Evaluation Board Emissions

100

Frequency (MHz)

1000

VCC

SYNC

AGND

R_FBB

C_VCC

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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与LM43600-Q1_15相关器件

型号	品牌	获取价格	描述	数据表
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
LM43601PWPT	TI	获取价格	3.5V 至 36V、1A 同步降压转换器 \| PWP \| 16 \| -40 to 125
LM43601-Q1	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
LM43601QPWPRQ1	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 \|

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