The jtm2259 is a fully integrated, high– efficiency 2A synch

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 jtm2259 is a fully integrated, high– efficiency 2A synchronous rectified step-down converter.The jtm2259 operates at high efficiency over a wide output current load range.
This device offers two operation modes, PWM control and PFM Mode switching control, which allows a high efficiency over the wider range of the load.
    The jtm2259 requires a minimum number of readily available standard external
components and is available in an 6-pin SOT23 ROHS compliant package.

二.产品特点(Features)
1.)High Efficiency: Up to 96%
2.)600KHz Frequency Operation
3.)2A Output Current
4.)No Schottky Diode Required
5.)4.5V to 16V Input Voltage Range
6.)0.6V Reference
7.)Slope Compensated Current Mode Control for
     Excellent Line and Load Transient Response
8.)Integrated internal compensation
9.)Stable with Low ESR Ceramic Output Capacitors
10.)Over Current Protection with Hiccup-Mode
11.)Thermal Shutdown
12.)Inrush Current Limit and Soft Start
13.)Available in SOT23-6 Package
14.)-40°C to +85°C Temperature Range

三,应用范围 (Applications)
Distributed Power Systems
Digital Set Top Boxes
Flat Panel Television and Monitors
Wireless and DSL Modems
Notebook Computer

四.下载产品资料PDF文档

jtm2259

五,产品封装图 (Package)

Pin Name	Pin Number	Description
BS	1	Bootstrap. A capacitor connected between SW and BS pins is required to form a floating supply across the high-side switch driver.
GND	2	Analog ground pin.
FB	3	Adjustable version feedback input. Connect FB to the center point of the external resistor divider.
EN	4	Drive this pin to a logic-high to enable the IC. Drive to a logic-low to disable the IC and enter micro-power shutdown mode.
VIN	5	Power supply Pin
SW	6	Switching Pin

(责任编辑：oumao18)