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Linear Regulators (LDOs) 
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MAX38902A
10.5μVRMS Low Noise 500mA LDO Linear Regulator
10.5μVRMS Low-Noise, Low-Dropout, 500mA Linear Regulators in a 2mm x 2mm TDFN Package
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Key Features
Applications/Uses
Parametric specs for Linear Regulators
| VIN (V) (min) | 1.7 |
| VIN (V) (max) | 5.5 |
| Adj. VOUT (V) (min) | 0.6 |
| Adj. VOUT (V) (max) | 5.3 |
| Rated ILOAD (mA) | 500 |
| Preset VOUT (V) | 3 4 |
| # Regulators | 1 |
| VDROPOUT @Rated ILOAD (V) (typ) | 0.05 |
| ICC (µA) (max) | 600 |
| Output Voltage Noise (µV RMS) (typ) | 12 |
| Ref. Bypass | Yes |
| Low Batt./ Pwr. Fail Out | No |
| Watchdog | No |
| Reverse Batt. Protect. | No |
| Oper. Temp. (°C) | -40 to +125 |
| Package/Pins | TDFN-CU/8 |
| Budgetary Price (See Notes) | 0.83 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | 10.5μVRMS Low Noise 500mA LDO Linear Regulator | Apr 06, 2021 |
How Analog Devices Are Enhancing LUXROBO’s IoT and Robotics Development Platform
Essential Analog Toolkit: Low-Noise, Low-Voltage LDOs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Linear Regulators
| VIN (V) (min) | 1.7 |
| VIN (V) (max) | 5.5 |
| Adj. VOUT (V) (min) | 0.6 |
| Adj. VOUT (V) (max) | 5.3 |
| Rated ILOAD (mA) | 500 |
| Preset VOUT (V) | 3 4 |
| # Regulators | 1 |
| VDROPOUT @Rated ILOAD (V) (typ) | 0.05 |
| ICC (µA) (max) | 600 |
| Output Voltage Noise (µV RMS) (typ) | 12 |
| Ref. Bypass | Yes |
| Low Batt./ Pwr. Fail Out | No |
| Watchdog | No |
| Reverse Batt. Protect. | No |
| Oper. Temp. (°C) | -40 to +125 |
| Package/Pins | TDFN-CU/8 |
| Budgetary Price (See Notes) | 0.83 |
Key Features
- 1.7V to 5.5V Input Voltage Range
- 0.6V to 5.3V Output Voltage Range
- 10.5µVRMS 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/Uses
- Audio Systems
- Communication Circuitry
- High-Resolution Data Acquisition Systems
Description
The MAX38902A/B/C/D are low-noise, linear regulators that deliver up to 500mA of output current with only 10.5µVRMS of output noise from 10Hz to 100kHz. These regulators maintain ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output 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).
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 ›
Technical Docs
| Data Sheet | 10.5μVRMS Low Noise 500mA LDO Linear Regulator | Apr 06, 2021 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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