L6902

批量生产

具有可调电流限值的1 A开关稳压器

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概述
Online design
样片和购买
解决方案
文件
CAD资源
工具与软件
质量与可靠性
开始
Partner products
Sales Briefcase

产品概述

描述

The L6902D is a complete and simple step down switching regulator with adjustable current limit. Based on a voltage mode structure it integrates a current error amplifier to have a constant voltage and constant current control.
By means of an on board current sense resistor and the availability of the current sense pins (both compatible to Vcc and for Cs- compatible with GND too) a current limit programming is very simple and accurate (±5%). Moreover constant current control can be used to charge NiMH and NiCd batteries.
The device can be used as a standard DC/DC converter with adjustable current limit (set by using the external sense resistor).
The internal robust P-channel DMOS transistor with a typical of 250 mΩ assures high efficiency and a minimum dropout even at high output current level. The internal limiting current (latched function) of typical value of 2.5 A protects the device from accidental output short circuit avoiding dangerous loads damage.
If the temperature of the chip goes higher than a fixed internal threshold (150°C with 20°C hysteresis), the power stage is turned off.
Other protections beside thermal shutdown complete the device for a safe and reliable application: overvoltage protection, frequency folback overcurrent protection and protection vs. feedback disconnection.
The internal fixed switching frequency of 250KHz, and the SO-8 package pin allow to built an ultra compact DC/ DC converter with a minimum board space.
  • 所有功能

    • Up to 1 A output current
    • Operating input voltage from 8 V to 36 V
    • Precise 3.3 V (±2%) reference voltage
    • 5 % output current accuracy
    • Output voltage adjustable from 1.235 V to 34 V
    • 250 kHz internally fixed frequency
    • Voltage feedforward
    • Zero load current operation
    • Adjustable current limit
    • Protection against feedback Disconnection
    • Thermal shutdown

电路原理图

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EDA Symbols, Footprints and 3D Models

STMicroelectronics - L6902

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
L6902D
批量生产
SO-8 工业 Ecopack2
L6902D013TR
批量生产
SO-8 工业 Ecopack2

L6902D

Package:

SO-8

Material Declaration**:

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6902D013TR

Package:

SO-8

Material Declaration**:

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

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.

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
L6902D Available at 6 distributors

经销商的可用性L6902D

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2456 1 马上订购
RS COMPONENTS EUROPE 1442 1 马上订购
FUTURE WORLDWIDE 1338 1 马上订购
MOUSER WORLDWIDE 3525 1 马上订购
Farnell Element14 EUROPE 576 1 马上订购
ANGLIA Live EUROPE 150 1 马上订购

代理商库存报告日期: 2021-05-17

代理商名称

DIGIKEY

库存

2456

Min.Order

1

地区

WORLDWIDE 马上订购

RS COMPONENTS

库存

1442

Min.Order

1

地区

EUROPE 马上订购

FUTURE

库存

1338

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

3525

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

576

Min.Order

1

地区

EUROPE 马上订购

ANGLIA Live

库存

150

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-05-17

Buy Direct
批量生产
EAR99 NEC Tube SO-8 - - CHINA 1.0 / 1k
L6902D013TR Available at 3 distributors

经销商的可用性L6902D013TR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 4865 1 马上订购
MOUSER WORLDWIDE 3342 1 马上订购
Farnell Element14 EUROPE 372 1 马上订购

代理商库存报告日期: 2021-05-17

代理商名称

DIGIKEY

库存

4865

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

3342

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

372

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-05-17

Buy Direct
批量生产
EAR99 NEC Tape And Reel SO-8 - - CHINA 1.0 / 1k

L6902D

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.0 / 1k

经销商的可用性L6902D

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2456 1 马上订购
RS COMPONENTS EUROPE 1442 1 马上订购
FUTURE WORLDWIDE 1338 1 马上订购
MOUSER WORLDWIDE 3525 1 马上订购
Farnell Element14 EUROPE 576 1 马上订购
ANGLIA Live EUROPE 150 1 马上订购

代理商库存报告日期: 2021-05-17

代理商名称

DIGIKEY

库存

2456

Min.Order

1

地区

WORLDWIDE 马上订购

RS COMPONENTS

库存

1442

Min.Order

1

地区

EUROPE 马上订购

FUTURE

库存

1338

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

3525

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

576

Min.Order

1

地区

EUROPE 马上订购

ANGLIA Live

库存

150

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-05-17

ECCN (EU)

NEC

包装类型

Tube

封装

SO-8

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.0 / 1k

Country of Origin

CHINA

L6902D013TR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.0 / 1k

经销商的可用性L6902D013TR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 4865 1 马上订购
MOUSER WORLDWIDE 3342 1 马上订购
Farnell Element14 EUROPE 372 1 马上订购

代理商库存报告日期: 2021-05-17

代理商名称

DIGIKEY

库存

4865

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

3342

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

372

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-05-17

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SO-8

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.0 / 1k

Country of Origin

CHINA

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商