LTC2926 MOSFET 控制型电源跟踪器

The LTC2926 provides a simple solution for tracking and sequencing up to three power supply rails. An N-channel MOSFET and a few resistors per channel configure the load voltages to ramp up and down together, with voltage offsets, with time delays or with different ramp rates.

Automatic remote sense switching compensates for voltage drops across the MOSFETs. The LTC2926 provides two integrated switches as well as a signal to control optional additional external N-channel MOSFET sense switches.

The LTC2926 includes I/O signals for communication with other devices. The status output asserts after tracking and sequencing have completed. A low voltage on the power good input after an adjustable timeout period causes load disconnect. A low voltage on the fault I/O causes immediate load disconnect. Until it is reset, a fault latch prevents tracking and keeps the loads disconnected

产品特点 Features

Flexible Power Supply Tracking and Sequencing
Adjustable Ramp Rates, Offsets and Time Delays
Controls Three Supplies with Series MOSFETs
Integrated Remote Sense Switching
FAULT Input/Output
STATUS Output/Power Good Input
Available in 20-Lead Narrow SSOP and 20-Lead QFN (4mm × 5mm) Packages

参数

应用

VCORE and VI/O Supply Tracking
Microprocessor, DSP and FPGA Supplies
Servers
Communications Systems

典型应用图

LTC2926 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC2926CGN	SSOP	20	C	$5.00	$3.50
LTC2926CGN#PBF	SSOP	20	C	$5.00	$3.50
LTC2926CGN#TR	SSOP	20	C		$3.56
LTC2926CGN#TRPBF	SSOP	20	C		$3.56
LTC2926CUFD	QFN	20	C	$5.00	$3.50
LTC2926CUFD#PBF	QFN	20	C	$5.00	$3.50
LTC2926CUFD#TR	QFN	20	C		$3.50
LTC2926CUFD#TRPBF	QFN	20	C		$3.50
LTC2926IGN	SSOP	20	I	$6.00	$4.20
LTC2926IGN#PBF	SSOP	20	I	$6.00	$4.20
LTC2926IGN#TR	SSOP	20	I		$4.26
LTC2926IGN#TRPBF	SSOP	20	I		$4.26
LTC2926IUFD	QFN	20	I	$6.00	$4.20
LTC2926IUFD#PBF	QFN	20	I	$6.00	$4.20
LTC2926IUFD#TR	QFN	20	I		$4.26
LTC2926IUFD#TRPBF	QFN	20	I		$4.26

LTC2926 数据手册及相关资料下载

数据手册(英文) : LTC2926 - MOSFET-Controlled Power Supply Tracker.PDF
可靠性数据 : R413 Reliability Data .PDF
产品选型卡 : High Voltage Surge Stoppers.PDF
产品选型卡 : Voltage Monitors & Supervisors Quick Guide.PDF