Purchase SP6651A, In-stock SP6651A From SeekIC.
Part Number: SP6651A
Description: The SP6651A is a 800mA synchronous buck regulator which is ideal for portable applications that use a ...
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SP6651A
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DataSheet
General Description
SP6651A General Description
The SP6651A is a 800mA synchronous buck regulator which is ideal for portable applications that use a Li-Ion or 3 cell alkaline/NiCD/NiMH input. The SP6651A's proprietary control loop, 20µA light load quiescent current, and 0.3Ω power switches provide excellent efficiency across a wide range of output currents. As the input battery supply decreases towards the output voltage the SP6651A seamlessly transitions into 100% duty ratio operation further extending useful battery life. The SP6651A is protected against overload and short circuit conditions with a precise inductor peak current limit. Other features include programmable under voltage lockout and low battery detection, externally programmed output voltage down to 1.0V, logic level shutdown
control, and 140°C over temperature shutdown.
SP6651A Maximum Ratings
PVIN,VIN .......................................................................................... 6V
All other pins ............................................................ ....3V to VIN+0.3V
PVIN, PGND, LX current .................................................................... 2A
Storage Temperature ............................................. -65 °C to 150 °C
Operating Temperature ............................................ -40°C to +85°C
Lead Temperature (Soldering, 10 sec) .................................... 300 °C
Thermal Resistance øJA:
10-Pin MSOP..........................................................................128°C/W
10-Pin DFN ..............................................................................68°C/W
These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.
SP6651A Features
DFN Package (3mm x 3mm)
Ultra-low 20µA Quiescent Current
98% Efficiency Possible
800mA Output Current
2.7V to 5.5V Input Voltage Range
Output Adjustable Down to 1.0V
No External FET's Required
1.25A Inductor Peak Current Limit
100% Duty Ratio Low Dropout Operation
80µA Light Load Quiescent Current in Dropout
Over Temperature Protection
Logic Shutdown Control
Programmable UVLO and Adaptive Battery Low Output
Ultra-low 20µA Quiescent Current
98% Efficiency Possible
800mA Output Current
2.7V to 5.5V Input Voltage Range
Output Adjustable Down to 1.0V
No External FET's Required
1.25A Inductor Peak Current Limit
100% Duty Ratio Low Dropout Operation
80µA Light Load Quiescent Current in Dropout
Over Temperature Protection
Logic Shutdown Control
Programmable UVLO and Adaptive Battery Low Output
SP6651A Typical Application
PDA's
DSC's
MP3 Players
USB Devices
Point of Use Power
DSC's
MP3 Players
USB Devices
Point of Use Power
SP6651A Connection Diagram
SP6651AER
PDF/DataSheet Download
- Datasheet: SP6651AER
- File Size: 164640 KB
- Manufacturer: SIPEX [Sipex Corporation]
- Click here to Download
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