Features: Ultra-low 12A Quiescent Current
400mA Output Current at 2.6V Input: 3.3VOUT
94% Efficiency from 2 cell to 3.3VOUT
Wide Input Voltage Range: 0.95V to 4.5V
3.3V Fixed or Adjustable Output
Integrated Synchronous Rectifier: 0.3
0.3 Switch
Anti-Ringing Switch Technology
Programmable Inductor Peak Current
Logic Shutdown Control
Under Voltage Lock-Out at 0.61V
Programmable Low Battery Detect
Single or Dual Cell Alkaline
Small 10 pin DFN Package and Industry
Standard 10 pin MSOPApplication Camera Flash LED Driver
Wireless Mouse
PDA's
Pagers
Medical Monitors
Handheld Portable Devices
MP3 PlayersPinout
Specifications
| Iout(mA) |
400 |
| Vin MIN. (V) |
0.7 |
| Vin MAX. (V) |
4.5 |
| IQ (A) |
13 |
| Vout MIN. (V) |
2 |
| Vout MAX. (V) |
5.5 |
| Efficiency(%) |
94 |
| Comments |
Fixed 3.3V |
LX, Vo, VBATT , LBON, FB to GND pin ................................ -0.3 to 6.0V
SHDN, LBI ........................................................... -0.3V to VBATT +1.0V
Vo, GND, LX Current ....................................................................... 2A
Reverse VBATT Current .............................................................. 220mA
Forward VBATT Current .............................................................. 500mA
Storage Temperature .................................................. -65 °C to 150°C
Operating Temperature ................................................ -40°C to +85°C
Lead Temperature (Soldering, 10 sec) ....................................... 300 °C
ESD Rating ........................................................................ 1.5kV HBM
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.
DescriptionThe SP6648 is an ultra-low quiescent current, high efficiency step-up DC-DC converter ideal for single cell, dual cell alkaline and Li-Ion battery applications such as digital still cameras, PDA's, MP3 players, and other portable devices. The SP6648 combines the high delivery associated with PWM control, and the low quiescent current and excellent light-load efficiency of PFM control.
The SP6648 features 12A quiescent current, synchronous rectification, a 0.3 charging switch, anti-ringing inductor switch, programmable low battery detect, under-voltage lockout and programmable inductor peak current. The device can be controlled by a 1nA active LOW shutdown pin.
SP6648 Data Sheet
