MAX25302A
2A Automotive Low Noise LDO Linear Regulators
Low 5.1µVRMS Noise 2A LDO
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Key Features
Applications/Uses
| VIN (V) (min) | 1.7 |
| VIN (V) (max) | 5.5 |
| Rated ILOAD (mA) | 2000 |
| Preset VOUT (V) | 3 4 5 |
| # Regulators | 1 |
| VDROPOUT @Rated ILOAD (V) (typ) | 0.1 |
| Output Voltage Noise (µV RMS) (typ) | 5.1 |
| Ref. Bypass | Yes |
| Low Batt./ Pwr. Fail Out | No |
| Watchdog | No |
| Oper. Temp. (°C) | -40 to +125 |
| Package/Pins | TDFN-CU/14 |
| Budgetary Price (See Notes) | 0.7 |
Simplified Block Diagram
Technical Docs
| Data Sheet | 2A Automotive Low Noise LDO Linear Regulators | Nov 08, 2021 |
Support & Training
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Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
| VIN (V) (min) | 1.7 |
| VIN (V) (max) | 5.5 |
| Rated ILOAD (mA) | 2000 |
| Preset VOUT (V) | 3 4 5 |
| # Regulators | 1 |
| VDROPOUT @Rated ILOAD (V) (typ) | 0.1 |
| Output Voltage Noise (µV RMS) (typ) | 5.1 |
| Ref. Bypass | Yes |
| Low Batt./ Pwr. Fail Out | No |
| Watchdog | No |
| Oper. Temp. (°C) | -40 to +125 |
| Package/Pins | TDFN-CU/14 |
| Budgetary Price (See Notes) | 0.7 |
Key Features
- Delivers Flexible Operating Range
- 1.7V to 5.5V Input Voltage Range
- 0.6V to 5.0V Programmable Output Voltage
- 2A Maximum Output Current
- 100mV Maximum Dropout at 2A Load
- < 1.5μA Shutdown Supply Current
- Reduces Noise and Improves Accuracy
- ±1% DC Accuracy Over Load, Line, and Temperature
- 5.1µVRMS Output Noise, 10Hz to 100kHz
- 1.3mA Quiescent Supply Current
- > 70dB PSRR at 10kHz
- Enables Ease-of-Use and Robust Protection
- Stable with 8μF (Min) Output Capacitance
- Programmable Soft-Start Rate
- Overcurrent and Overtemperature Protection
- Output-to-Input Reverse-Current Protection
- Power-OK Status Pin
- Reduces PC Board Area
- 3mm x 3.5mm 14-pin TDFN Package
- AEC-Q100
- -40°C to 125°C Operating Temperature
Applications/Uses
- Automotive Electronics
- High-End Audio Systems
- High-Resolution Data-Acquisition Systems
Description
The MAX25302A/B are 1.7V–5.5V VIN, low-noise linear regulators that delivers up to 2A of output current with only 5.1μVRMS of output noise from 10Hz to 100kHz. The regulator maintains ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 1.3mA no-load supply current is independent of dropout voltage.
The output voltage on MAX25302B can be adjusted to a value in the range of 0.6V to 5.0V by using two external resistors. The MAX25302B also includes an active-high POK signal for trouble-free load startup.
The MAX25302A has nine pin-selectable output voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V.
All versions include a programmable output soft-start rate, output overcurrent, and thermal-overload protection.
The MAX25302A/B are offered in a 3mm x 3.5mm, 14-pin TDFN package.
Technical Docs
| Data Sheet | 2A Automotive Low Noise LDO Linear Regulators | Nov 08, 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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