ADP1708

1 A, Low Dropout, CMOS Linear Regulator ADP1706/ADP1707/ADP1708 FEATURES Maximum output current: 1 A Input voltage range: 2.5 V to 5.5 V Low shutdown current: <1 μA Low dropout voltage: 345 mV @ 1 A load Initial accuracy: ±1% Accuracy over line, load, and temperature: ±2.5% 16 fixed output voltage options with soft start: 0.75 V to 3.3 V (ADP1706) 16 fixed output voltage options with tracking 0.75 V to 3.3 V (ADP1707) Adjustable output voltage option: 0.8 V to 5.0 V (ADP1708) Stable with small 4.7 μF ceramic output capacitor Excellent load/line transient response Current limit and thermal overload protection Logic-controlled enable Available in an 8-lead, exposed paddle SOIC and 3 mm × 3 mm, 8-lead exposed paddle LFCSP TYPICAL APPLICATION CIRCUITS ADP1706 1 2 10nF EN GND IN IN SS 8 SENSE 7 OUT 6 OUT 5 4.7µF VOUT = 3.3V 06640-001 VIN = 5V 4.7µF 3 4 Figure 1. ADP1706 with Fixed Output Voltage, 3.3 V ADP1707 1 2 EN GND IN IN TRK 8 SENSE 7 OUT 6 OUT 5 VTRK VOUT 4.7µF VIN = 5V 4.7µF 3 4 VOUT (V) 3 2 1 0 1 2 3 4 5 VTRK (V) 06640-003 APPLICATIONS Notebook computers Memory components Telecommunications equipment Network equipment DSP/FPGA/microprocessor supplies Instrumentation equipment/data acquisition systems Figure 2. ADP1707 with Output Voltage Tracking ADP1708 1 2 R2 8 EN GND IN IN ADJ R1 VOUT = 0.8V(1 + R1/R2) 06640-002 SENSE 7 OUT 6 OUT 5 VIN = 5V 4.7µF 3 4 4.7µF Figure 3. ADP1708 with Adjustable Output Voltage, 0.8 V to 5.0 V GENERAL DESCRIPTION Th...