38 V 500 mA synchronous step-down switching regulator with 30 uA quiescent current

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  • L6985F是一款降压单片开关稳压器,能够提供高达0.5 A直流电。输出电压可调范围为0.85V至VIN。由于P沟道MOSFET高压侧功率元件,该设备具有100%的占空比操作。宽输入电压范围满足5 V、12 V和24 V电源的规格。“低功耗模式”(LCM)是专为在空闲模式下处于活动状态的应用而设计的,因此它可以在输出电压纹波受控的轻负载下最大限度地提高效率。“低噪声模式”(LNM)使开关频率恒定过载电流范围,满足低噪声应用规范。输出电压监测仪管理任何数字负载(μC,FPGA)的重置相位。The output voltage supervisor manages the reset phase for any digital load (μC, FPGA).RST开路集电极输出还可在开机阶段实现输出电压排序。同步整流,设计用于中重负载下的高效率,开关频率高,使应用规模紧凑。两个功率元件上的脉冲电流感应实现了有效的恒流保护。

    主要特性

    • 0.5 A DC输出电流
    • 4 V至38 V工作输入电压
    • 低功耗模式或低噪音模式
    • 轻载下30 μA IQ (LCM VOUT = 3.3 V)
    • 8 μAIQ-SHTDWN
    • 输出电压从0.85 V到VIN可调
    • 可调fSW(250 kHz - 2 MHz)
    • 嵌入式输出电压监测仪
    • 同步
    • 软启动时间可调
    • 内部电流限制
    • 过电压保护
    • 输出电压排序
    • 峰值电流模式架构
    • RDSON HS = 360 mΩ, RDSON LS = 150 mΩ
    • 热关机

样片和购买

型号
Package
Packing Type
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Budgetary Price (US$)*
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L6985FTR HTSSOP16 Tape And Reel
Active
1.1 1000 EAR99 MALAYSIA Check Availability

Distributor availability ofL6985FTR

代理商名称
地区 库存 最小订购量 Third party link
ARROW AMERICA 2000 2500 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

ARROW

库存

2000

Min.Order

2500

地区

AMERICA Order Now

代理商库存报告日期: 2019-04-17

L6985F HTSSOP16 Tube
Active
1.1 1000 EAR99 MALAYSIA Check Availability

Distributor availability ofL6985F

代理商名称
地区 库存 最小订购量 Third party link
ARROW EUROPE 716 0 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

ARROW

库存

716

Min.Order

0

地区

EUROPE Order Now

代理商库存报告日期: 2019-04-17

Buy direct

L6985FTR

Package

HTSSOP16

Packing Type

Tape And Reel

Unit Price (US$)

1.1*

Distributor availability ofL6985FTR

代理商名称
地区 库存 最小订购量 Third party link
ARROW AMERICA 2000 2500 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

ARROW

库存

2000

Min.Order

2500

地区

AMERICA Order Now

代理商库存报告日期: 2019-04-17

Marketing Status

Active

Unit Price (US$)

1.1

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L6985F

Package

HTSSOP16

Packing Type

Tube

Unit Price (US$)

1.1*

Distributor availability ofL6985F

代理商名称
地区 库存 最小订购量 Third party link
ARROW EUROPE 716 0 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

ARROW

库存

716

Min.Order

0

地区

EUROPE Order Now

代理商库存报告日期: 2019-04-17

Marketing Status

Active

Unit Price (US$)

1.1

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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技术文档

    • Description 版本 文档大小 Action
      DS11040
      38 V, 500 mA synchronous step-down switching regulator with 30 µA quiescent current
      2.0
      1.47 MB
      PDF
      DS11040

      38 V, 500 mA synchronous step-down switching regulator with 30 µA quiescent current

HW Model, CAD Libraries & SVD

    • Description 版本 文档大小 Action
      A6985F Pspice model
      270.52 KB
      ZIP
      A6985F3V3 Spice model
      268.35 KB
      ZIP
      A6985F5V Spice model
      267.35 KB
      ZIP

      A6985F Pspice model

      A6985F3V3 Spice model

      A6985F5V Spice model

出版刊物和宣传资料

    • Description 版本 文档大小 Action
      电源管理 2017版指南 09.2017
      4.42 MB
      PDF
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF
      Switching Converters (DC-DC) – Quick Reference Guide 1.0
      481.92 KB
      PDF

      电源管理 2017版指南

      Electric vehicle (EV) ecosystem

      Switching Converters (DC-DC) – Quick Reference Guide

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L6985F
Active
HTSSOP16 汽车 Ecopack2
L6985FTR
Active
HTSSOP16 汽车 Ecopack2

L6985F

Package:

HTSSOP16

Material Declaration**:

Marketing Status

Active

Package

HTSSOP16

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L6985FTR

Package:

HTSSOP16

Material Declaration**:

Marketing Status

Active

Package

HTSSOP16

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

eDesignSuite

转换器

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.