The LT3061IDCB-3.3#TRMPBF is a micropower, low dropout (LDO) linear regulator that operates over a 1.6V to 45V supply range and is available in a series of fixed output and adjustable versions. The device supplies 100mA of output current with a typical dropout voltage of 250mV. A single external capacitor provides programmable low noise reference performance and output soft-start functionality. The LT3061’s quiescent current is merely 45μA and provides fast transient response with a minimum 3.3μF output capacitor. In shutdown, quiescent current is less than 3μA and the reference soft start capacitor is reset.
The LT3061IDCB-3.3#TRMPBF features an NMOS pull-down that discharges the output when SHDN or IN is driven low.
Internal protection circuitry includes reverse-battery protection, reverse-current protection, current limit with foldback and thermal shutdown.
The LT3061IDCB-3.3#TRMPBF is available in fixed output voltages of 3.3V and 5V, and as an adjustable device with an output voltage range from the 600mV reference up to 19V. The LT3061IDCB-3.3#TRMPBF is offered in the thermally enhanced 8-lead 2mm × 3mm DFN and MSOP packages.
Feature
- Input Voltage Range: 1.6V to 45V
- Output Current: 100mA
- Output Discharge
- Quiescent Current: 45μA
- Dropout Voltage: 250mV
- Low Noise: 30μVRMS (10Hz to 100kHz)
- Adjustable Output (VREF = 600mV)
- Fixed Output Voltages: 3.3V, 5V
- Output Tolerance: ±2% Over Load, Line, and Temperature
- Single Capacitor Soft-Starts Reference and Lowers Output Noise
- Shutdown Current: < 3μA
- Reverse Battery Protection
- Current Limit Foldback and Thermal Limit Protection
- 8-Lead 2mm × 3mm DFN and MSOP Packages
Applications
- Battery Powered Systems
- Automotive Power Supplies
- Industrial Power Supplies
- Avionic Power Supplies
- Portable Instruments
