SP6669
SP6669 is 800mA 1.5MHz Synchronous Step-Down Converter manufactured by MaxLinear.
DESCRIPTION
The SP6669 is a synchronous current mode PWM step down (buck) converter capable of delivering up to 800m A of current. It features a pulse skip mode (PSM) for light load efficiency and a LDO mode for 100% duty cycle.
With a 2.5V to 6.0V input voltage range and a 1.5MHz switching frequency, the SP6669 allows the use of small surface mount inductors and capacitors ideal for battery powered portable applications. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage.
Built-in over temperature and output over voltage lock-out protections insure safe operations under abnormal operating conditions.
The SP6669 is offered in a Ro HS pliant, “green”/halogen free 5-pin SOT23 package.
TYPICAL APPLICATION DIAGRAM
Rev. 5.0.0
APPLICATIONS
- Portable Equipment
- Battery Operated Equipment
- Audio-Video Equipment
- Networking & Tele Equipment
FEATURES
- Guaranteed 800m A Output Current
- Input Voltage: 2.5V to 6.0V
- 1.5MHz PWM Current Mode Control
- 100% Duty Cycle LDO Mode Operations
- Achieves 97% Efficiency
- 0.6V 2% Accurate Reference
- Excellent Line/Load Transient
Response
- 18µA Quiescent Current
- Over Temperature Protection
- Ro HS pliant “Green”/Halogen Free
5-Pin SOT23 Package
Fig. 1: SP6669 Application Diagram (Adj. version shown) 1
SP6669 800m A 1.5MHz Synchronous Step Down Converter
ABSOLUTE MAXIMUM RATINGS
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.
Input Voltage VIN -0.3V to 6.6V Enable VFB Voltage -0.3V to VIN SW Voltage -0.3V to (VIN+0.3V) Peak Switch...
