Common Mode Semiconductor is proud to announce the release of the GM12071, a 20V/500mA low-power, low-noise LDO (Low Dropout) voltage regulator designed to replace ADI’s ADP7104 and ADP7102. The GM12071, a CMOS-based LDO, operates from 1.9V to 20V and delivers a maximum output current of 500mA.
This high-input voltage LDO is ideal for regulating high-performance analog and mixed-signal circuits powered between 1.2V and 20V. Featuring an advanced proprietary architecture, it provides excellent power supply rejection and low noise characteristics while maintaining low quiescent current. The regulator achieves superior line and load transient response with just a 2.2µF small ceramic output capacitor. The GM12071 exhibits an output noise of 8.5µVRMS, independent of the fixed output voltage options.
Product Overview
About the Product The GM12071 offers six fixed output voltage options, with available stock including 1.2V (adjustable), 1.22V (adjustable), 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V. Each fixed output voltage can be adjusted above its initial setting point using an external feedback divider, providing output voltages ranging from 1.2V to VIN - VDO with high PSRR and low noise. The GM12071 comes in 6-pin DFN and 8-pin SOP packages, with the DFN package supporting user-programmable soft start via external capacitors.
Key Features
Low Noise: 8.5µVRMS (independent of fixed output voltage)
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Power Supply Rejection Ratio (PSRR): 92 dB (at 10 kHz)
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Input Voltage Range: 1.9V to 20V
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Output Voltage:
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Fixed: 1.5V, 1.8V, 2.5V, 3.3V, 5.0V
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Adjustable: 1.2V to VIN - VDO
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GM12071AUJZ-1-R7 Adjustable: 1.22V to VIN - VDO
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Maximum Output Current: 500 mA
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Line, Load, and Temperature Range Accuracy:
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Low Dropout Voltage: 480 mV (typical at IOUT = 500 mA, VOUT = 5V)
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User-Programmable Soft Start: Available only in DFN package
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Low Quiescent Current: IGND = 22 µA (typical, no load)
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Low Shutdown Current: 1.1 µA (VIN = 20V)
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Stable with 2.2 µF Ceramic Output Capacitor
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Precise Enable Function
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Operating Temperature Range: −55°C to +125°C
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Junction Temperature Range: −55°C to +150°C
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AEC-Q100 Qualified for Automotive Applications
Major Applications
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Noise-sensitive applications like ADC and DAC circuits
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Precision amplifiers and VCO control power
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Communications and infrastructure
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Medical imaging
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Industrial and instrumentation
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Automotive electronics
Typical Application
The GM12071 is a high-voltage, low-noise, high-precision, low-dropout linear regulator, capable of delivering 500mA with a typical dropout voltage of 480mV. It supports an input voltage range of 1.9V to 20V and fixed output voltages from 1.2V to 5.0V. Adjustable output voltages range from 1.2V to 20V - VDO. The wide input voltage range ensures stable output, and additional input capacitance with low ESR may improve output noise performance if the input power source is noisy.
