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推荐新设计使用
说明
- Delivers Flexible Output Range
- 1.8V to 5.5V Input Voltage Range
- 0.6V to 5.0V Output Voltage Range
- 1A Maximum Output Current
- 28mV Dropout at 1A Load Current and 5.0V Supply
- 33mV Dropout at 1A Load Current and 3.6V Supply
- 1% Regulation over Line, Load, and Temperature
- 4µVRMS of Output Noise, 10Hz to 100kHz
- 75dB PSRR at 10kHz
- Integrated Pass-Through Function
- Fast Active Discharge of 6Ω at OUT
- Dynamic Two-Level Voltage Scaling with 33 Levels for Each Option for Flexible Configuration (MAX38913)
- 2V, 2.3V Pre-Programmed Voltage Levels (MAX38914)
- Stable with 4µF (Minimum Capacitance)
- Overcurrent and Overtemperature Protection
- Power-OK/Power-on-Reset Output
- 12-Bump, 0.4mm-Pitch WLP
- 14-Pin, 3mm x 3mm TDFN
特性
The MAX38913/MAX38914 is a low-noise linear regulator that delivers up to 1A of load current with as low as 4μVRMS of output noise. The MAX38913/MAX38914 can dynamically change its output voltage between two separate levels. The MAX38913/MAX38914 has the pass-through mode which, when enabled, completely bypasses the linear regulator.
This regulator maintains ±1% output accuracy over a wide input voltage range, temperature, and load conditions. The no-load quiescent current in the regulation mode is 1.37mA. During the pass-through mode, unlike the conventional dropout mode of an LDO, the MAX38913/MAX38914 consumes very little quiescent current. The MAX38913/MAX38914 has a 6Ω active discharge feature to quickly discharge output capacitors of up to 300μF.
The MAX38913 has 33 programmable output-voltage settings for both voltage selections. The MAX38914 has pre-programmed output voltage levels of 2.3V and 2V.The MAX38913/MAX38914 is packaged in either a space-saving 12-bump WLP or a full-featured 3mm x 3mm, 14-pin TDFN package. Optional power-OK and power-on-reset pins are available in the 14-pin TDFN version.
Applications
- Image Sensors
- Portable Sensor Applications
- SD Memory Cards
