LP3971
- Compatible with Advanced Applications Processors Requiring DVM (Dynamic Voltage Management)
- Three Buck Regulators for Powering High Current Processor Functions or I/O's
- 6 LDO's for Powering RTC, Peripherals, and I/O's
- Backup Battery Charger with Automatic Switch for Lithium-Manganese Coin Cell Batteries and Super Capacitors
- I2C Compatible High Speed Serial Interface
- Software Control of Regulator Functions and Settings
- Precision Internal Reference
- Thermal Overload Protection
- Current Overload Protection
- Tiny 40-pin 5x5 mm WQFN Package
Key Specifications
- Buck Regulators
- Programmable VOUT from 0.725 to 3.3V
- Up to 95% Efficiency
- Up to 1.6A Output Current
- ±3% Output Voltage Accuracy
- LDO’s
- Programmable VOUT of 1.0V–3.3V
- ±3% output voltage accuracy
- 150/300/370 mA output currentsLDO RTC 30 mALDO 1 300 mALDO 2 150 mALDO 3 150 mALDO 4 150 mALDO 5 370 mA
- 100 mV (typ) dropout
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The LP3971 is a multi-function, programmable Power Management Unit, designed especially for advanced application processors. The LP3971 is optimized for low power handheld applications and provides 6 low dropout, low noise linear regulators, three DC/DC magnetic buck regulators, a back-up battery charger and two GPIO’s. A high speed serial interface is included to program individual regulator output voltages as well as on/off control.
技術文件
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檢視所有 3 類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LP3971 Power Management Unit for Advanced Application Processors datasheet (Rev. V) | 2013年 5月 3日 | |
EVM User's guide | AN-1620 LP3971 USB Evaluation Board (Rev. A) | 2013年 4月 30日 | ||
User guide | LP3971 Smart Power Reference Design - 8 outputs User Guide | 2012年 1月 27日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
封裝 | 引腳 | 下載 |
---|---|---|
WQFN (RSB) | 40 | 檢視選項 |
訂購與品質
內含資訊:
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊:
- 晶圓廠位置
- 組裝地點