Datasheet > LM46002PWP

LM46002PWP

更新时间： 2024-11-06 01:06:23

品牌	Logo	应用领域
德州仪器 - TI		开关光电二极管
页数	文件大小	规格书
52页	1823K
描述
SIMPLE SWITCHER 3.5 V to 60 V 2 A Synchronous Step-Down Voltage Converter

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LM46002PWP 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	HTSSOP,
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	6 weeks
风险等级：	1.7	其他特性：	ALSO OPERATES IN PFM CONTROL TECHNIQUE, ALSO OPERATES IN ADJUSTABLE MODE FROM 1 TO 28V
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制模式：	CURRENT-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	60 V
最小输入电压：	3.5 V	标称输入电压：	24 V
JESD-30 代码：	R-PDSO-G16	JESD-609代码：	e4
湿度敏感等级：	2	功能数量：	1
端子数量：	16	最高工作温度：	125 °C
最低工作温度：	-40 °C	最大输出电流：	5 A
最大输出电压：	28 V	最小输出电压：	1 V
封装主体材料：	PLASTIC/EPOXY	封装代码：	HTSSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	表面贴装：	YES
切换器配置：	BUCK	最大切换频率：	2200 kHz
温度等级：	AUTOMOTIVE	端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	GULL WING	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

LM46002PWP 数据手册

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LM46002

SNVSA13B –APRIL 2014–REVISED SEPTEMBER 2014

LM46002 SIMPLE SWITCHER® 3.5 V to 60 V 2 A Synchronous Step-Down Voltage

Converter

1 Features

3 Description

The LM46002 SIMPLE SWITCHER^®regulator is an

easy to use synchronous step-down DC-DC

converter capable of driving up to 2 A of load current

from an input voltage ranging from 3.5 V to 60 V. The

LM46002 provides exceptional efficiency, output

accuracy and drop-out voltage in a very small

solution size. An extended family is available in

various load current options and 36 V maximum input

voltage in pin-to-pin compatible packages, including

LM46001, LM46000, LM43603, LM43602, LM43601

and LM43600. Peak current mode control is

•

27 µA Quiescent Current in Regulation

High Efficiency at Light Load (DCM and PFM)

Meets EN55022/CISPR 22 EMI standards

Integrated Synchronous Rectification

•

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

employed

achieve

simple

control

loop

compensation and cycle-by-cycle current limiting.

Optional features such as programmable switching

•

Power-Good Flag

frequency,

synchronization,

power-good

flag,

Soft-Start into Pre-Biased Load

precision enable, internal soft-start, extendable soft-

start, and tracking provide a flexible and easy to use

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

platform for

wide range of applications.

Discontinuous conduction and automatic frequency

reduction at light loads improve light load efficiency.

The family requires few external components. 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 LM46002

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.

2 Applications

•

Industrial Power Supplies

Telecommunications Systems

Sub-AM Band Automotive

Device Information

Commercial Vehicle Power Supplies

General Purpose Wide V_INRegulation

High Efficiency Point-Of-Load Regulation

ORDER NUMBER

PACKAGE

BODY SIZE

LM46002PWP

HTSSOP (16)

5.1 mm x 6.6 mm

4 Simplified Schematic

Radiated Emission Graph

V_IN= 24 V, V_OUT= 3.3 V, F_S= 500 kHz, I_OUT= 2 A

V_OUT

V_IN

VIN

Evaluation Board

C_OUT

C_IN

LM46002

C_BOOT

EN 55022 Class B Limit

EN 55022 Class A Limit

CBOOT

BIAS

ENABLE

PGOOD

C_BIAS

C_FF

R_FBT

SS/TRK

VCC

SYNC

AGND

R_FBB

C_VCC

PGND

200

400

600

800

1000

Frequency (MHz)

C001

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...52

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LM46002PWP 替代型号

型号	品牌	替代类型	描述	数据表
LM46002PWPT	TI	类似代替	SIMPLE SWITCHER 3.5 V to 60 V 2 A Synchronous Step-Down Voltage Converter
LM46002PWPR	TI	类似代替	SIMPLE SWITCHER 3.5 V to 60 V 2 A Synchronous Step-Down Voltage Converter

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LM46002PWPR	TI	获取价格	SIMPLE SWITCHER 3.5 V to 60 V 2 A Synchronous Step-Down Voltage Converter
LM46002PWPT	TI	获取价格	SIMPLE SWITCHER 3.5 V to 60 V 2 A Synchronous Step-Down Voltage Converter
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LM46002QPWPRQ1	TI	获取价格	SIMPLE SWITCHER 3.5 V to 60 V 2 A Synchronous Step-Down Voltage Converter
LM46002QPWPTQ1	TI	获取价格	SIMPLE SWITCHER 3.5 V to 60 V 2 A Synchronous Step-Down Voltage Converter
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