LTC1622IS8

所属类别：控制器controller
产品名称：低输入电压电流模式降压型DC / DC控制器
厂商：LINEAR
生产批号：09+
封装：SOP8
库存状态：有库存
库存量：5000
最低订购量：1
详细资料：

Product Introduction

LTC1622IS8

Low input voltage current-mode step-down DC/DC controller

peculiarity

High efficiency
Constant frequency 550kHz operation
V IN range: 2V to 10V
Multiampere output current
OPTI - LOOP™ compensation reduces C OUT
Optional burst mode operation
Low dropout operation: 100% duty cycle
It can rise to 750kHz synchronously
Excellent current-mode operation of lines and loads
Transient response
Low quiescent current: 350μA
Only 15μA of supply current is consumed in shutdown mode
± 1.9% reference accuracy
Available in 8-pin MSOP

Typical applications:

description

The LTC ® 1622 is a constant frequency current-mode step-down DC/DC controller that provides excellent AC and DC load and line regulation. The device integrates a precise undervoltage function that shuts off LTC1622 input voltage below 2V.

LTC1622 boasts an ± 1.9% output voltage accuracy and consumes only 350μA quiescent current. Efficiency is the most important consideration and load current variations in applications LTC1622 can be configured for burst mode ™ operation. Burst mode operation, improve current efficiency, and extend the running time of the battery. Burst mode operation is suppressed during synchronization or when the SYNC/MODE pin is pulled down to reduce noise and possible RF interference.

The high constant operating frequency of 550kHz allows for the use of a small size inductor. The device can also be synchronized to 750kHz for special applications. High-frequency operation, available in 8-lead MSOP package, high-performance solution in very small board area.

To further extend the life of the battery power, the P-channel MOSFET has a constant turn-on difference (100% duty cycle). In shutdown mode, the device consumes only 15μA.

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1 - or 2 lithium-ion battery-powered applications
Cellular phones
Wireless modem
Laptops
Distributed 3.3V, 2.5V, or 1.8V power supply systems
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Battery-powered devices

ICs related to LTC1622IS8 include:

Model	Manufacturers	lot number	encapsulation	illustrate
LTC1622IS8	LINEAR	09+	SOP8	Low input voltage current-mode step-down DC/DC controller

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LTC1622IS8

Low input voltage current-mode step-down DC/DC controller

peculiarity

Typical applications:

description

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ICs related to LTC1622IS8 include:

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