ADP1740ACPZ-1.0-R7
2 A，低输入电压，低压差线性稳压器 2 A, Low VIN, Low Dropout Linear Regulator
Product Details
The ADP1740/ADP1741 are CMOS, low dropout linear regulators that operate from 1.6 V to 3.6 V and provide up to 2 A of output current. These low VIN / VOUT LDOs are ideal for regulation of nanometer FPGA geometries operating from 2.5V down to 1.8V I/O rails, and powering core voltages down to 0.75V. Using an advanced, proprietary architecture, the ADP1740/ADP1741 provide high power supply rejection ratio PSRR and low noise, and achieve excellent line and load transient response with only a small 4.7 μF ceramic output capacitor.
The ADP1740 is available in seven fixed output voltage options. The ADP1741 is an adjustable version that allows output voltages ranging from 0.75 V to 3.3 V via an external divider. The ADP1740/ADP1741 allow an external soft start capacitor to be connected to program the startup. A digital power-good output allows power system monitors to check the health of the output voltage.
The ADP1740/ADP1741 are available in a 16-lead, 4 mm × 4 mm LFCSP, making them not only very compact solutions, but also providing excellent thermal performance for applications that require up to 2 A of output current in a small, low profile footprint..
**Applications**
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- Server computers
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- Memory components
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- Telecommunications equipment
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- Network equipment
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- DSP/FPGA/microprocessor supplies
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- Instrumentation equipment/data acquisition systems
### Features and Benefits
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- Maximum output current: 2 A
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- Input voltage range: 1.6 V to 3.6 V
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- Low shutdown current: 2 μA
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- Low dropout voltage: 160 mV @ 2 A load
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- Initial accuracy: ±1%
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- Accuracy over line, load, and temperature: ±2%
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- 7 fixed output voltage options with soft start:
0.75 V to 2.5 V ADP1740
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- Adjustable output voltage options with soft start: 0.75 V to 3.3 V ADP1741
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- High PSRR
65 dB @ 1 kHz
65 dB @ 10 kHz
54 dB @ 100 kHz
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- 23 μV rms at 0.75 V output
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- Stable with small 4.7 μF ceramic output capacitor
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- Please see data sheet for additional features
