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参数资料
| 型号： | FAN5234MTCX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC PWM CTLR/PFM MOBILE 16TSSOP |
| 标准包装： | 1 |
| 应用： | 控制器，移动式个人电脑 |
| 输入电压： | 2 V ~ 24 V |
| 输出数： | 1 |
| 输出电压： | 0.9 V ~ 5.5 V |
| 工作温度： | -10°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 标准包装 |
| 其它名称： | FAN5234MTCXDKR |
November 2010
FAN5234
Dual Mobile-Friendly PWM / PFM Controller
Features
Wide Input Voltage Range for Mobile Systems:
2V to 24V
Excellent Dynamic Response with Voltage Feed-
Forward and Average-Current-Mode Control
Lossless Current Sensing on Low-Side MOSFET or
Precision Over-Current via Sense Resistor
V CC Under-Voltage Lockout
Power-Good Signal
Light-Load Hysteretic Mode Maximizes Efficiency
300KHz or 600KHz Operation
TSSOP16 Package
Applications
Mobile PC Regulator
Handheld PC Power
Related Resources
Application Note — AN-6002 Component
Calculations and Simulation Tools for FAN5234
or FAN5236
Application Note — AN-1029 Maximum Power
Enhancement Techniques for SO-8 Power
MOSFET
Ordering Information
Operating
Description
The FAN5234 PWM controller provides high efficiency
and regulation with an adjustable output from 0.9V to
5.5V required to power I/O, chip-sets, memory banks, or
peripherals in high-performance notebook computers,
PDAs, and internet appliances. Synchronous
rectification and hysteretic operation at light loads
contribute to a high efficiency over a wide range of
loads. The Hysteretic Mode of operation can be
disabled if PWM Mode is desired for all load levels.
Efficiency is further enhanced by using the MOSFET’s
R DS(ON) as a current-sense component.
Feed-forward ramp modulation, average current mode
control, and internal feedback compensation provide
fast response to load transients. The FAN5234 monitors
these outputs and generates a PGOOD (power-good)
signal when the soft-start is completed and the output is
within ±10% of its set point. A built-in over-voltage
protection prevents the output voltage from going above
120% of the set point. Normal operation is automatically
restored when the over-voltage conditions cease.
Under-voltage protection latches the chip off when the
output drops below 75% of its set value after the soft-
start sequence is completed. An adjustable over-current
function monitors the output current by sensing the
voltage drop across the lower MOSFET.
Part Number
Temperature
Package
Packing Method
Range
FAN5234MTCX
-10 to +85°C
16-Lead, Thin-Shrink Small-Outline Package (TSSOP)
Tape and Reel
? 2004 Fairchild Semiconductor Corporation
FAN5234 ? Rev. 2.0.0
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN5234QSC | 功能描述:开关变换器、稳压器与控制器 PWM Controller 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 |
| FAN5234QSC_Q | 功能描述:开关变换器、稳压器与控制器 PWM Controller 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 |
| FAN5234QSCX | 功能描述:开关变换器、稳压器与控制器 PWM Controller 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 |
| FAN5235 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:System Electronics Regulator for Mobile PCs |
| FAN5235_CAB3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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