The MAX38902A/B/C/D are low-noise, linear regulators that deliver up to 500mA of output current with only 12μVRMS of output noise from 10Hz to 100kHz. These regulators maintain ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-tooutput headroom at full load. The 365μA no-load supply current is independent of drop-out voltage.The MAX38902A have nine, pin-selectable output voltages 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V. The MAX38902B/C have a resistor adjustable output voltage in the range of 0.6V to 5.3V. The MAX38902B also includes an active-low POK output.The MAX38902D have factory-preset output voltages ranging from 0.7V to 5V. All versions include a programmable output soft-start rate, output over-current and thermal overload protection.The MAX38902A/B are offered in an 8-pin TDFN package, while the MAX38902C/D are offered in a 2 x 3, 0.4mm wafer-level package (WLP).
Design Solution: Modern Portable Devices Require a New Breed of LDOs
Feature
- 1.7V to 5.5V Input Voltage Range
- 0.6V to 5.3V Output Voltage Range
- 12μVRMS Output Noise, 10Hz to 100kHz
- 365μA Operating Supply Current
- 70dB PSRR at 10kHz
- 500mA Maximum Output Current
- ±1% DC Accuracy Over Load, Line, and Temperature
- 100mV (Max) Dropout at 500mA Load (3.6VIN)
- < 0.1μA Shutdown Supply Current
- Stable with 2μF (Min) Output Capacitance
- Programmable Soft-Start Rate
- Overcurrent and Overtemperature Protection
- Output-to-Input Reversed Current Protection
- Active-Low POK Output
- Pin-to-Pin Compatible with MAX8902 (TDFN)
- 1.22mm x 0.82mm, 2 x 3 Bump, 0.4mm Pitch WLP, or 2mm x 2mm 8-pin TDFN Package
Applications
- Audio Systems
- Communication Circuitry
- High-Resolution Data Acquisition Systems
