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电源管理
Semtech SC561
Dual Output Low Noise LDO Linear Regulator
The SC561 is a dual output, ultra-low dropout linear voltage regulator designed for use in battery powered applications. The SC561 provides fi xed output voltages of VLDOA = 3.1V and VLDOB = 2.85V, and up to 300mA of load current per channel.
概览
功能
- Input voltage range — 2.5V to 5.5V
- Output voltage — VLDOA = 3.1V; VLDOB = 2.85V
- Maximum output current — 300mA (each LDO)
- Dropout at 200mA load — 200mV max.
- Quiescent supply current — 40μA (both LDOs enabled)
- Shutdown current — 100nA (typ)
- Output noise < 50μVRMS
- PSRR >65dB at 1kHz
- Over-temperature protection
- Short-circuit protection
- Under-voltage lockout
- Power good monitor for output A
- MLPQ-UT8, 1.5mm x 1.5mm x 0.6mm package
应用
- PDAs and cellular phones
- GPS devices
- Palmtop computers and handheld instruments
- TFT/LCD applications
- Wireless handsets
- Digital cordless phones and PCS phones
- Personal communicators
- Wireless LAN
封装
MLPQ-UT8 (1.5x1.5)
订购代码
- SC561ULTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape and Reel Only
图表和规格
框图
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