LMR36503

Name: LMR36503
Brand: TI
SKU: LMR36503
Price: 1.378 USD

現行

具有 6μA IQ 的 3V 至 65V、0.3A 超小型同步降壓轉換器

立即訂購

產品規格表

document-pdfAcrobat LMR36503 3-V to 65-V, 0.3-A Ultra-Small Synchronous Buck Converter with Ultra-Low IQ datasheet (Rev. B) (英文) PDF | HTML

LMR36503

現行

產品規格表

立即訂購

產品詳細資料

Iout (max) (A)

0.3

Vin (min) (V)

3

Vin (max) (V)

65

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

200

Switching frequency (max) (kHz)

2200

Features

Enable, Fixed Output, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, Wettable flanks package

Control mode

current mode

Vout (min) (V)

1

Vout (max) (V)

60

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.000007

Iout (max) (A)

0.3

Vin (min) (V)

3

Vin (max) (V)

65

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

200

Switching frequency (max) (kHz)

2200

Features

Enable, Fixed Output, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, Wettable flanks package

Control mode

current mode

Vout (min) (V)

1

Vout (max) (V)

60

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.000007

VQFN-HR (RPE)

9

4 mm² 2 x 2

Designed for rugged industrial applications:
- Junction temperature range –40°C to +150°C
- Input transient protection up to 70 V
- Wide input voltage range: 3.0 V (falling threshold) to 65 V
- Low EMI and minimized switch node ringing
- Adjustable, 5-V fixed output voltage options available
Suited for scalable industrial power supplies:
- Pin compatible with LMR36506 (65 V, 600 mA)
- Adjustable switching frequency: 200 kHz to 2.2 MHz with RT pin variant
Minimized solution size and cost:
- Highest power density with internal compensation and reduced external component count
- Ultra-small, 2-mm × 2-mm HotRod™ package with wettable flanks available
High efficiency across load range with low power dissipation:
- > 90% peak efficiency at 1 MHz (5 V_OUT adjustable)
Ultra-low operating quiescent current at no load
- 4 µA at 24 V_IN to 3.3 V_OUT (fixed output option)

Designed for rugged industrial applications:
- Junction temperature range –40°C to +150°C
- Input transient protection up to 70 V
- Wide input voltage range: 3.0 V (falling threshold) to 65 V
- Low EMI and minimized switch node ringing
- Adjustable, 5-V fixed output voltage options available
Suited for scalable industrial power supplies:
- Pin compatible with LMR36506 (65 V, 600 mA)
- Adjustable switching frequency: 200 kHz to 2.2 MHz with RT pin variant
Minimized solution size and cost:
- Highest power density with internal compensation and reduced external component count
- Ultra-small, 2-mm × 2-mm HotRod™ package with wettable flanks available
High efficiency across load range with low power dissipation:
- > 90% peak efficiency at 1 MHz (5 V_OUT adjustable)
Ultra-low operating quiescent current at no load
- 4 µA at 24 V_IN to 3.3 V_OUT (fixed output option)

The LMR36503 is the industry smallest 65 V, 0.3 A synchronous step-down DC/DC converter in 2-mm × 2-mm HotRod package. This easy-to-use converter can handle input voltage transients up to 70 V, provide excellent EMI performance and support fixed 5 V and other adjustable output voltages. The transient tolerance reduces the necessary design effort to protect against input overvoltage and meets the surge immunity requirements of IEC 61000-4-5.

The LMR36503 uses the peak current mode control architecture with internal compensation to maintain stable operation with minimal output capacitance. The LMR36503 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 the start-up and shutdown. The power-good flag, with built-in glitch filter and delayed release, offers a true indication of the system status, eliminating the requirement for an external supervisor. The compact solution size and rich feature set of LMR36503 simplifies implementation for a wide range of industrial applications.

The LMR36503 is the industry smallest 65 V, 0.3 A synchronous step-down DC/DC converter in 2-mm × 2-mm HotRod package. This easy-to-use converter can handle input voltage transients up to 70 V, provide excellent EMI performance and support fixed 5 V and other adjustable output voltages. The transient tolerance reduces the necessary design effort to protect against input overvoltage and meets the surge immunity requirements of IEC 61000-4-5.

The LMR36503 uses the peak current mode control architecture with internal compensation to maintain stable operation with minimal output capacitance. The LMR36503 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 the start-up and shutdown. The power-good flag, with built-in glitch filter and delayed release, offers a true indication of the system status, eliminating the requirement for an external supervisor. The compact solution size and rich feature set of LMR36503 simplifies implementation for a wide range of industrial applications.

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LMR36506

現行

具有 4μA IQ 的 3V 至 65V、0.6A 超小型同步降壓轉換器 Higher current range

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	類型	標題		日期
*	Data sheet	LMR36503 3-V to 65-V, 0.3-A Ultra-Small Synchronous Buck Converter with Ultra-Low IQ datasheet (Rev. B)	PDF \| HTML	2022年 11月 8日
	Certificate	LMR36503MSCEEVM EU Declaration of Conformity (DoC)		2024年 4月 17日
	Application note	Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A)	PDF \| HTML	2021年 7月 26日
	Technical article	Choosing buck converters and LDOs for miniature industrial automation equipment	PDF \| HTML	2020年 1月 29日
	EVM User's guide	LMR36503RFEVM User's Guide		2019年 4月 3日
	Application brief	Powering Drones With a Wide VIN DC-DC Converter (Rev. A)		2019年 2月 5日
	Analog Design Journal	Accurately measuring efficiency of ultralow-IQ devices		2014年 1月 22日

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開發板

BOOSTXL-IOLINKM-8 — 八埠 IO-Link 主要裝置 BoosterPack™

此 BoosterPack™ 專為搭配 LP-AM243 TI LaunchPad™ 套件及 Sitara™ AM243x MCU 運作。此設計採用具快速且決定性時脈、獨立週期與位元率配置的八埠 IO-Link 主要裝置。此設計可用於建立遠端 IO 閘道，以連接 OPC UA、Profinet、EtherCAT 或乙太網路 IP。適用 Sitara ™ 處理器基礎訊框處理程式的可編程即時單元 (PRU) 可提供靈活的時脈與同步控制方式。

使用指南: PDF