产品概述
描述
The PM8903A is a high efficiency monolithic step-down switching regulator designed to deliver up to 3 A continuous current. The IC operates from 2.8 V to 6 V input voltage (VIN).
The PM8903A features low-resistance integrated nMOS and proprietary pulse-skipping mode for optimum efficiency over all the loading range.
The voltage mode control loop allows the widest range of output filters. Current sense is internally thermally compensated for optimum precision.
The integrated 0.6 V reference allows the regulation of output voltages with ±1% accuracy over temperature variations. Switching frequency is typically set to 1.1 MHz and can be programmed to 0.8 MHz or 1.0 MHz. Out of phase synchronization allows the reduction of input RMS current.
The PM8903A provides precise dual-threshold overcurrent protection as well as over/undervoltage and overtemperature protection. PGOOD output easily provides real-time information on the output voltage.
The PM8903A is available in VFQFPN16 3 x 3 mm.
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所有功能
- Integrated 35 mΩ MOSFETs for high efficiency
- 3 A continuous output current
- 2.8 V to 6 V input voltage (VIN)
- 2.9 V to 5.5 V supply voltage (VCC)
- Adjustable output voltage down to 0.6 V
- 1% output voltage accuracy
- 1.1 MHz switching frequency operation
- PSKIP mode to optimize light load efficiency
- Embedded bootstrap diode
- Thermally compensated loss-less current sense across HS and LS MOSFETs
- OV/UV/OC and overtemperature protection
- Internal soft-start and soft-stop
- Interleaving synchronization (up to 2 ICs)
- Power Good output
- Shutdown function (< 15 μA quiescent current)
- VFQFPN16 3 x 3 mm compact package
EDA符号、封装和3D模型
STMicroelectronics - PM8903A
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符号
封装
3D模型
样片和购买
| 产品型号 | Order from distributors | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||
| PM8903ATR | distributors 无法联系到经销商，请联系我们的销售办事处 | 批量生产 | EAR99 | NEC | Tape and Reel | QFN16 3x3 | - | - | CHINA | | ||