SP6669EB
SP6669EB 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 and optimized for portable battery-operated applications.
Based on a current-mode 1.5MHz constant frequency PWM control scheme, the SP6669 reduces the overall ponent count and solution footprint. It provides low output voltage ripple and excellent line and load regulation. It also implements a 100% duty cycle LDO mode. Output voltage is adjustable to as low as 0.6V with a better than 3% accuracy while a low quiescent current supports the most stringent battery operating conditions.
Built-in over temperature and under 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.
EVALUATION BOARD MANUAL
FEATURES
- Guaranteed 800m A Output Current
- Input Voltage: 2.5V to 5.5V
- 1.5MHz PWM Current Mode Control
- 100% Duty Cycle LDO Mode Operations
- Achieves 95% Efficiency
- Adjustable Output Voltage Range
- As Low as 0.6V with ±3% Accuracy
- Over Temperature & UVLO Protection
EVALUATION BOARD SCHEMATICS
Fig. 1: SP6669 Evaluation Board Schematics © 2012-2021 Max Linear, Inc.
.maxlinear.
PIN ASSIGNMENT
800m A 1.5MHz Synchronous Step-Down Converter
Fig. 2: SP6669 Pin Assignment
PIN DESCRIPTION
Name
Pin Number
Description
Enable Pin. Do not leave the pin floating. VEN<0.4V: Shutdown mode VEN>1.2V: Device enabled Ground Signal Pin. Switching node. Power Supply Pin. Must be decoupled to ground with a 4.7µF or greater ceramic capacitor. Adjustable Version Feedback Input Pin. Connect VFB to the center point of the resistor divider.
ORDERING INFORMATION
Refer to SP6669’s datasheet and/or .maxlinear. for exact and up to date ordering information.
© 2012-2021 Max Linear, Inc.
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Rev. 1.0.1
800m A 1.5MHz Synchronous Step-Down Converter
USING THE EVALUATION BOARD
INITIAL...
