Datasheet > LMS3655-Q1

LMS3655-Q1

更新时间： 2024-11-24 11:07:55

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
61页	3404K
描述
5.5A、36V 同步、400kHz 降压转换器

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中文翻译

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数据手册

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LMS3655-Q1 数据手册

LMS3655-Q1, LMS3635-Q1

SNAS714C – NOVEMBER 2016 – REVISED AUGUST 2021

LMS3635-Q1 3.5-A, LMS3655-Q1 5.5-A, 36-V Synchronous, 400-kHz Step-Down

Converter

1 Features

3 Description

•

AEC-Q100-qualified for automotive applications

– Device temperature grade 1: –40°C to +125°C

ambient operating temperature

– Device HBM classification level 2

– Device CDM classification level C6

96% Peak efficiency while converting 12 V to 5 V

Low EMI and minimized switch node ringing

400-kHz (±10%) fixed switching frequency

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

External frequency synchronization

RESET output with internal filter and 3-ms release

timer

Automatic light load mode for improved efficiency

Pin-selectable forced PWM mode

Built-In compensation, soft start, current limit,

thermal shutdown, and UVLO

0.35-V dropout with 3.5-A Load at 25°C (Typical)

18-µA I_{Q_VIN}: quiescent current at 3.3 V_OUTand no

load (typical)

The LMS3635-Q1 and LMS3655-Q1 synchronous

buck regulators are optimized for high performance

applications, providing an output voltage of 3.3 V, 5

V, or an adjustable output of 1 V to 20 V. Seamless

transition between PWM and PFM modes, along with

a low quiescent current, ensures high efficiency and

superior transient responses at all loads.

•

Advanced high-speed circuitry allows the LMS3655-

Q1 to regulate an input of 24 V to an output of 3.3 V

at a fixed frequency of 400 kHz while also enabling

a continuous load current of 5.5 A. An innovative

frequency foldback architecture allows this device to

regulate a 3.3-V output from an input voltage of only

3.5 V. The input voltage can range up to 36 V, with

transient tolerance up to 42 V, easing input surge

protection design.

•

An open-drain reset output, with built-in filtering and

delay, provides a true indication of system status.

This feature negates the requirement for an additional

supervisory component, saving cost and board space.

•

Output voltage: 5 V, 3.3 V, and ADJ (1 V to 20 V)

±1.5% reference voltage tolerance

Create a custom design using the LMS3655-Q1

with the WEBENCH^®Power Designer

Device Information

DEVICE NAME

LMS3635-Q1

PACKAGE⁽¹⁾

BODY SIZE

2 Applications

SON (22)

4.00 mm × 5.00 mm

LMS3655-Q1

•

Automotive USB charge

Driver monitoring

Surround view system ECU

Mechanically scanning LIDAR

Vehicle to vehicle

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

the end of the data sheet.

100%

98%

96%

94%

92%

90%

88%

86%

84%

82%

80%

V_IN= 12

V_IN= 24

0.001

0.01

0.1

Output Current (A)

LMS3

LMS3655-Q1 Conducted EMI: V_{OUT = 5 V}, I_OUT= 5 A

LMS3655-Q1 Efficiency: V_OUT= 5 V

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...61

中文翻译

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与LMS3655-Q1相关器件

型号	品牌	获取价格	描述	数据表
LMS3655-Q1_V01	TI	获取价格	LMS3635-Q1 3.5-A, LMS3655-Q1 5.5-A, 36-V Synchronous, 400-kHz Step-Down Converter
LMS36C0902M045	MURATA	获取价格	SPST, 890MHz Min, 915MHz Max, 1dB Insertion Loss-Max
LMS36C1441M048	MURATA	获取价格	SPST, 1429MHz Min, 1453MHz Max, 1dB Insertion Loss-Max
LMS36C1907M000	MURATA	获取价格	SPST, 1895MHz Min, 1920MHz Max, 1dB Insertion Loss-Max
LMS36C2450M000	MURATA	获取价格	SPST, 2400MHz Min, 2500MHz Max, 1dB Insertion Loss-Max
LMS36L0902M045	MURATA	获取价格	SPST, 890MHz Min, 915MHz Max, 1.7dB Insertion Loss-Max
LMS36L1441M048	MURATA	获取价格	SPST, 1429MHz Min, 1453MHz Max, 1.7dB Insertion Loss-Max
LMS36L1907M000	MURATA	获取价格	SPST, 1895MHz Min, 1920MHz Max, 1.7dB Insertion Loss-Max
LMS404012	LEIDITECH	获取价格	Sealed Power Inductors
LMS404012-100M-N	LEIDITECH	获取价格	Sealed Power Inductors

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