Datasheet > A6985F

A6985F

更新时间： 2024-02-22 14:05:25

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		开关光电二极管
页数	文件大小	规格书
77页	1748K
描述
38 V 500 mA synchronous step-down switching regulator

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A6985F 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	TSSOP, TSSOP16,.25	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
Factory Lead Time：	14 weeks	风险等级：	2.24
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制模式：	CURRENT-MODE
JESD-30 代码：	R-PDSO-G16	端子数量：	16
最大输出电流：	0.5 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装等效代码：	TSSOP16,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
子类别：	Switching Regulator or Controllers	表面贴装：	YES
最大切换频率：	2200 kHz	端子形式：	GULL WING
端子节距：	0.635 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

A6985F 数据手册

A6985F

38 V 500 mA synchronous step-down switching regulator

with 30 µA quiescent current

Datasheet - production data

Description

The A6985F automotive grade device is a step-

down monolithic switching regulator able to

deliver up to 0.5 A DC. The output voltage

adjustability ranges from 0.85V to VIN. The 100%

duty cycle capability and the wide input voltage

HTSSOP16 (R_TH= 40 °C/W)

range meet the cold crank and load dump

specifications for automotive systems. The “Low

Consumption Mode” (LCM) is designed for

applications active during car parking, so it

maximizes the efficiency at light-load with

Features

 AECQ100 qualification

controlled output voltage ripple. The “Low Noise

Mode” (LNM) makes the switching frequency

constant and minimizes the output voltage ripple

overload current range, meeting the low noise

application specification like car audio. The output

voltage supervisor manages the reset phase for

any digital load (µC, FPGA). The RST open

collector output can also implement output

voltage sequencing during the power-up phase.

The synchronous rectification, designed for high

efficiency at medium - heavy load, and the high

switching frequency capability make the size of

the application compact. Pulse by pulse current

sensing on both power elements implements an

effective constant current protection.

 0.5 A DC output current

 4 V to 38 V operating input voltage

 Low consumption mode or low noise mode

 30 µA I at light-load (LCM V

= 3.3 V)

OUT

 8 µA I

Q-SHTDWN

 Fixed output voltage (3.3 V and 5 V) or

adjustable from 0.85 V to V

 Adjustable f

(250 kHz - 2 MHz)

 Embedded output voltage supervisor

 Synchronization

 Adjustable soft-start time

 Internal current limiting

 Overvoltage protection

 Output voltage sequencing

 Peak current mode architecture

 R

= 360 m, R

= 150 m

DSON LS

DSON HS

 Thermal shutdown

Applications

 Designed for automotive systems

 Battery powered applications

 Car body applications (LCM)

 Car audio and low noise applications (LNM)

April 2015

DocID027738 Rev 2

1/77

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...77

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