GMT G5695TO1U 1.4MHz 1A Synchronous Step-Down Regulator
The G5695 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture.
The G5805 is a standalone linear Li-Ion battery charger with a complete pre-charge,constant-current and constant-voltage charge loop.
Brand:
GMTGeneral Description
The G5805 is a standalone linear Li-Ion battery charger with a complete pre-charge, constant-current and constant-voltage charge loop. No external power MOSFET, sense resistor and blocking diode is required due to internal power MOSFET architecture. The charge voltage is regulated at 4.2V, and the charge current is programmable by an external resistor. After the final regulation voltage is reached and the charge current drops to 1/10th the programmed charge current, the open drain NMOS CHRG pin would be turn off automatically without
terminating the charge loop. Other features include under voltage lockout, automatic recharge, over temperature protection and a charge status indication pin.
Features
No External Power MOSFET, Sense Resistor or
Blocking Diode Required
1% Regulation Voltage Accuracy
Programmable Constant Charge Current Limit
up to 800mA
Automatic Recharge
Complete Pre-Charge, Constant Current,
Constant Voltage and Charge Termination
Charge Procedure
Support for 5V Power Supply Voltage
Internal Thermal Protection Circuit
TSOT-23-5 Package
Applications
MP3 Players
Cellular Phones
PDAs
Hand-Held Devices
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