The JTMA7062B is a voltage mode and synchronous PWM control

1.产品概述 2.产品特点 3.应用范围 4.下载产品资料PDF文档
5.产品封装图 6.电路原理图 7.功能概述 8.相关产品

一,产品概述(General Description)
The JTMA7062B is a voltage mode and synchronous PWM controller
which drives dual N-Channel MOSFETs. It inte-grates the control, monitoring,
and protection functions into a single package, provides one controlled power
outputs with under-voltage and over-current protection.JTMA7062B provides
excellent regulation for output load variation. An internal 0.8V temperature-
compensated reference voltage is designed to meet the requirement of
low output voltage applications. It includes a 200kHz free-running
triangle-wave oscillator that is adjustable from 70kHz to 800kHz.
The power-on-reset (POR) circuit monitors the VCC, EN,and OCSET
input voltage to start-up or shutdown the IC.The over-current protection (OCP)
monitors the output current by using the voltage drop across the upper
MOSFET’s RDS(ON), eliminating the need for a current sens-ing resistor.
The under-voltage protection (UVP) moni-tors the voltage of the FB pin for
short-circuit protection.The over-current protection trip cycle the soft-start
func-tion until the fault events be removed. Under-voltage pro-tection will
shutdown the IC directly.

二.产品特点(Features)
1.)Simple Single-Loop Control Design
Voltage-Mode PWM Control
2.)Fast Transient Response
Full 0–100% Duty Ratio
3.)Excellent Output Voltage Regulation
0.8V Internal Reference
± 1% Over Line Voltage and Temperature
4.)Over Current Fault Monitor
Uses Upper MOSFETs RDS (ON)
5.)Converter Can Source and Sink Current
6.)Small Converter Size
200kHz Free-Running Oscillator
Programmable from 70kHz to 800kHz
7.)14-Lead SOIC Package
8.)Lead Free and Green Devices Available (RoHS Compliant)

三,应用范围 (Applications)
Graphic Cards
DDR Memory Power Supply
DDR Memory Termination Voltage
Low-Voltage Distributed Power Supplies

四.下载产品资料PDF文档

JTMA7062B

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