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| 型号： | TPS54900PWG4 |
| 厂商： | Texas Instruments |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ .1A QUAD 16TSSOP |
| 标准包装： | 90 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 4 |
| 输出电压： | 7.5 V ~ 13.1 V |
| 输入电压： | 15V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 450kHz |
| 电流 - 输出： | 100mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 16-TSSOP |
| 配用： | 296-17304-ND - EVAL MODULE FOR XILINX FPGA |
TPS54900
(6,4 mm x 5,0 mm)
SLVS405 ? OCTOBER 2001
PROGRAMMABLE FOUR CHANNEL STEP DOWN
DC/DC CONVERTER
FEATURES
D Four Independent 100-mA Channels
Programmable Over 4-Wire Serial Port
D Converter Regulation Range:
7.5 V to 13.1 V in 400-mV Steps, Plus
Unregulated Pass-Through Mode to Shunt VIN
to any Output
DESCRIPTION
The TPS54900 four-channel step-down converter uses
voltage mode PWM control to provide four
independently programmable output voltages. Each
regulated channel includes a high-side PMOSFET
switch with a typical r DS(ON) of 0.8 ? , which makes it
suitable for high efficiency, low current applications.
D
D
D
D
D
Internally Compensated PWM Controller and
Integrated PMOS Power Switches
Global and Per Channel Status Available
Through Serial Port
External Synchronization of PWM With
System Clock
Per Channel Current Limit and Global Thermal
Shutdown
?40 ° C to 85 ° C Ambient Temperature Range
Commands sent to the TPS54900 over the four-wire
serial port programs the outputs independently or
globally to supply voltages from 7.5 V to 13.1 V in 0.4-V
increments. When the input voltage is desired at an
output, a bypass mode can be activated which fully
enhances the PMOSFET switch and disables the
switching circuitry of the selected channel.
The TPS54900 is an ideal companion device to power
THS7102 ADSL line drivers as a part of the AC5 central
office ADSL chipset. With the AC5 chipset controlling
APPLICATIONS
D ADSL Central Office Line Drivers
D Software Line Card Provisioning
EFFICIENCY
vs
DRIVER SUPPLY VOLTAGE
100
100
the TPS54900 output voltages, significant power
savings are realized by reducing the excess supply
headroom on a per line basis.
TSSOP (PW) PACKAGE
(TOP VIEW)
LX0
1
16
LX3
90
80
70
Efficiency
Driver Current
80
60
40
20
LX1
GND
SFS
SDI
EN
FB0
FB1
2
3
4
5
6
7
8
15
14
13
12
11
10
9
LX2
VIN
SDO
SCLK
CBS
FB3
FB2
60
0
7
9
11
13
15
Driver Supply Voltage ? V
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright ? 2001, Texas Instruments Incorporated
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS54900PWR | 功能描述:开关变换器、稳压器与控制器 Prog 4-Ch Step Dwn DC/DC Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TPS54900PWRG4 | 功能描述:开关变换器、稳压器与控制器 Prog 4-Ch Step Dwn DC/DC Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TPS54910 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3-V TO 4-V INPUT, 9-A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT) |
| TPS54910EVM-213 | 功能描述:电源管理IC开发工具 9-A 3-4 Vin DC/DC Converter RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS54910PWP | 功能描述:直流/直流开关调节器 3.3V Inp 9A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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