ADP1707: 1 A, Low Dropout, CMOS Linear Regulator with Tracking
The ADP1706/ADP1707/ADP1708 are CMOS, low dropout linear regulators that operate from 2.5 V to 5.5 V and provide up to 1 A of output current. Using an advanced proprietary architecture, they provide high power supply rejection and achieve excellent line and load transient response with a small 4.7 μF ceramic output capacitor.
The ADP1706/ADP1707 are available in 16 fixed output volt-age options. The ADP1708 is available in an adjustable version, which allows output voltages that range from 0.8 V to 5.0 V via an external divider. The ADP1706 allows an external soft start capacitor to be connected to program the start-up time; the ADP1707 and ADP1708 contain internal soft start capacitors that give a typical start-up time of 100 μs. The ADP1707 includes a tracking feature that allows the output to follow an external voltage rail or reference.
The ADP1706/ADP1707/ADP1708 are available in an 8-lead, exposed paddle SOIC package and an 8-lead, 3 mm × 3 mm exposed paddle LFCSP, making them not only very compact solutions but also providing excellent thermal performance for applications requiring up to 1 A of output current in a small, low profile footprint.
产品应用领域 Applications
- Notebook computers
- Memory components
- Telecommunications equipment
- Network equipment
- DSP/FPGA/microprocessor supplies
- Instrumentation equipment/data acquisition systems
ADP1707 特点
- 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
ADP1707 功能框图
