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LMR36500中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書

LMR36500
廠商型號(hào)

LMR36500

功能描述

LMR36500 3-V to 65-V, 50-mA Wide VIN Synchronous Buck Converter Optimized for Size and Light Load Efficiency

文件大小

3.24173 Mbytes

頁面數(shù)量

54

生產(chǎn)廠商 Texas Instruments
企業(yè)簡(jiǎn)稱

TI1德州儀器

中文名稱

德州儀器官網(wǎng)

原廠標(biāo)識(shí)
數(shù)據(jù)手冊(cè)

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更新時(shí)間

2024-12-25 20:00:00

LMR36500規(guī)格書詳情

1 Features

? Functional Safety-Capable

– Documentation available to aid functional safety

system design

? Designed for rugged industrial applications:

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

– Input transient capability up to 70 V

– Wide input voltage range: 3.0 V (falling

threshold) to 65 V

– Minimized switch node ringing to reduce EMI

– Adjustable and fixed output 3.3-V and 5-V

voltage options available

? Designed for scalable industrial power supplies:

– Pin compatible with LMR36503 (65 V, 300 mA)

and LMR36506 (65 V, 600 mA)

– Adjustable switching frequency: 200 kHz to

2.2 MHz with RT pin variant

? Minimized design size and cost:

– Ultra-small, 2-mm × 2-mm HotRod? package

? High efficiency across load range with low power

dissipation:

– Greater than 80 peak efficiency at 1 MHz

(3.3-V VOUT)

2 Applications

? Factory automation: field transmitters and process

sensors

? Building automation: HVAC and fire safety

notification and detectors

? Appliances: garden and power tools

? Portable electronics: headphones and earbuds

3 Description

The LMR36500 is the industry smallest 65-V, 50-mA

synchronous step-down DC/DC converter in 4-mm2

HotRod package. This easy-to-use converter can

handle input voltage transients up to 70 V, provide

excellent EMI performance and supports fixed, 3.3 V,

5 V and other adjustable output voltages.

The LMR36500 uses a peak current mode control

architecture with internal compensation to maintain

stable operation with minimal output capacitance. The

LMR36500 with the right resistor selection from the

RT pin to ground can be externally programmed to

any desired switching frequency of operation over a

wide range from 200 kHz to 2.2 MHz. The precision

EN/UVLO feature allows precise control of the device

during start-up and shutdown. The PGOOD flag,

with built-in glitch filter and delayed release, offers

a true indication of the system status, eliminating

the requirement for an external voltage supervisor.

The compact design size and rich feature set of

LMR36500 simplifies implementation for a wide range

of industrial applications.

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Texas
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