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参数资料
| 型号： | L5983 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | 3 X 3 MM, 1.08 MM HEIGHT, LEAD FREE, VFQFPN-8 |
| 文件页数： | 1/37页 |
| 文件大小： | 832K |
| 代理商： | L5983 |
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June 2009
Doc ID 13005 Rev 6
1/37
37
L5983
1.5 A step-down switching regulator
Features
■ 1.5 A DC output current
■ 2.9 V to 18 V input voltage
■ Output voltage adjustable from 0.6 V
■ 250 kHz switching frequency, programmable
up to 1 MHz
■ Internal soft-start
■ Inhibit
■ Low dropout operation: 100% duty cycle
■ Voltage feed-forward
■ Zero load current operation
■ Over current and thermal protection
■ VFQFPN8 3 x 3 mm package
Applications
■ Consumer: STB, DVD, DVD recorder, car
audio, LCD TV and monitors
■ Industrial: Chargers, PLD, PLA, FPGA
■ Networking: XDSL, modems, DC-DC modules
■ Computer: Optical storage, hard disk drive,
printers, audio/graphic cards
■ LED driving
Description
The L5983 is a step-down switching regulator with
2.0 A (min.) current limited embedded power
MOSFET, so it is able to deliver an output current
in excess of 1.5 A DC to the load.
The input voltage can range from 2.9 V to 18 V,
while the output voltage can be set starting from
0.6 V to VIN. Having a minimum input voltage of
2.9 V, the device is suitable for also for the 3.3 V
bus.
Requiring a minimum set of external components,
the device includes an internal 250 kHz switching
frequency oscillator that can be externally
adjusted up to 1 MHz.
The VFQFPN package with exposed pad allows
reducing the RthJA down to approximately
60 °C/W.
VFQFPN8 3 x 3 mm
Figure 1.
Application circuit
相关PDF资料 |
PDF描述 |
|---|---|
| L5983TR | 1.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| L5986A | 3.9 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| L5986ATR | 3.9 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| L5986TR | 3.9 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| L5986 | 3.9 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L5983_08 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:1.5 A step-down switching regulator |
| L5983TR | 功能描述:直流/直流开关调节器 1.5a Step-Down Switching Reg 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 |
| L5985 | 功能描述:直流/直流开关调节器 2A STEP-DOWN SWITCH REGULATOR 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 |
| L5985_08 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2 A step-down switching regulator |
| L5985TR | 功能描述:直流/直流开关调节器 2a Step-Down Switching Reg 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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