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參數(shù)資料
| 型號(hào)： | XRP7740ILBTR-F |
| 廠商： | Exar Corporation |
| 文件頁(yè)數(shù)： | 1/28頁(yè) |
| 文件大?。?/td> | 1610K |
| 描述： | IC REG 5OUT BCK/LINEAR 40TQFN |
| 產(chǎn)品變化通告： | Packing Change 15/Oct/2010 |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 系列： | PowerXR |
| 拓?fù)洌?/td> | 降壓（降壓）同步（4），線性（LDO）（1） |
| 功能： | 任何功能 |
| 輸出數(shù)： | 5 |
| 頻率 - 開(kāi)關(guān)： | 1.5MHz |
| 電壓/電流 - 輸出 1： | 控制器 |
| 電壓/電流 - 輸出 2： | 控制器 |
| 電壓/電流 - 輸出 3： | 控制器 |
| 帶 LED 驅(qū)動(dòng)器： | 無(wú) |
| 帶監(jiān)控器： | 無(wú) |
| 帶序列發(fā)生器： | 是 |
| 電源電壓： | 6.5 V ~ 20 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 40-WFQFN 裸露焊盤(pán) |
| 供應(yīng)商設(shè)備封裝： | 40-TQFN（6x6） |
| 包裝： | 帶卷 (TR) |
| 配用： | 1016-1352-ND - EVAL BOARD FOR XRP7740 1016-1344-ND - IN-SOCKET PROG BRD VIA USB/GUI |
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April 2012
Rev. 1.2.2
Exar Corporation
www.exar.com
48720 Kato Road, Fremont CA 94538, USA
Tel. +1 510 668-7000 Fax. +1 510 668-7001
GENERAL DESCRIPTION
The XRP7708 and XRP7740 are quad-output
pulse-width modulated (PWM) step-down DC-
DC controllers with a built-in LDO for standby
power and GPIOs. The devices provide a
complete power management solution in one
IC and are fully programmable via an I
2
C
serial interface. Independent Digital Pulse
Width Modulator (DPWM) channels regulate
output voltages and provide all required
protection functions such as current limiting
and over-voltage protection.
Each output voltage can be programmed from
0.9V to 5.1V without the need of an external
voltage divider. The wide range of the
programmable DPWM switching frequency
(from 300 KHz to 1.5 MHz) enables the user to
optimize between efficiency and component
size. Input voltage range is from 6.5V to 20V.
An I
2
C bus interface is provided to program
the IC as well as to communicate with the host
for fault reporting and handling, power rail
parameters monitoring, etc.
The device offers a complete solution for soft-
start and soft-stop. The start-up delay and
ramp of each PWM regulator can be
independently controlled. The device can start
up a pre-biased PWM channel without causing
large negative inductor current.
APPLICATIONS
" Multi Channel Programmable
Power Supplies
" Audio-Video Equipment
" Industrial & Telecom Equipment
" Processors & DSPs Based Equipment
FEATURES
" 4 Channel Step Down Controller
3ohm/1.8ohm driver XRP7740
5ohm/1.8ohm driver XRP7708
Programmable Output Voltage 0.9V-5.1V
Programmable 1.5MHz DPWM Frequency
" 6.5V-20V Single Input Voltage Range
" Up to 6 Reconfigurable GPIO Pins
" Fully Programmable via I2C Interface
" Independent Digital Pulse Width
Modulator (DPWM) channels
" Complete Monitoring and Reporting
" Complete Power Up/Down Sequencing
" Full On Board Protection
OTP, UVLO, OCP and OVP
" Built-in 3.3V/5V LDO
" PowerArchitect" Design Software
" Green/Halogen Free 40-pin TQFN
TYPICAL APPLICATION DIAGRAM
Fig. 1: XRP7708 or XRP7740 Application Diagram
XRP7708
XRP7740
Exposed Pad: AGND
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRP77XXEVB-XCM | 功能描述:EVAL BOARD W/USB-I2C FOR XRP7704 RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類(lèi)型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):升壓 頻率 - 開(kāi)關(guān):3MHz 板類(lèi)型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| XRP77XXEVB-XPM | 功能描述:電源管理IC開(kāi)發(fā)工具 XRP77XXEVB-XPM RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| XRP9710EVB | 制造商:Exar Corporation 功能描述:Evaluation Board for the XRP9710 Series Dual 6 A Programmable Power Module 制造商:Exar Corporation 功能描述:XRP9710 eval |
| XRP9710EVB-DEMO-1 | 功能描述:XRP9710 - DC/DC, Step Down 2, Non-Isolated Outputs Evaluation Board 制造商:exar corporation 系列:- 零件狀態(tài):有效 主要用途:DC/DC，步降 輸出和類(lèi)型:2，非隔離 功率 - 輸出:- 電壓 - 輸出:1.8V，2.5V 電流 - 輸出:6A，6A 電壓 - 輸入:5.5 V ~ 22 V 穩(wěn)壓器拓?fù)?降壓 頻率 - 開(kāi)關(guān):- 板類(lèi)型:完全填充 所含物品:板 使用的 IC/零件:XRP9710 標(biāo)準(zhǔn)包裝:1 |
| XRP9710EY-F | 制造商:Exar Corporation 功能描述:Dual 6Amp Programmable Power Module |
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