SP1410
PWM Control 2A Step-Down Converter
GENERAL DESCRIPTION
The SP1410 is a monolithic step down switch mode regulator with a built in internal Power MOSFET. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation.
Current mode operation provides fast transient response and eases loop stabilization.
Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. In shutdown mode the regulator draws 25μA of suppl.
PWM Control 2A Step-Down Converter
SP1410
PWM Control 2A Step-Down Converter
GENERAL DESCRIPTION
The SP1410 is a monolithic step down switch mode regulator with a built in internal Power MOSFET. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation.
Current mode operation provides fast transient response and eases loop stabilization.
Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. In shutdown mode the regulator draws 25μA of supply current.
The SP1410 requires a minimum number of readily available standard external components.
FEATURES
2A Output Current. 0.22Ω Internal Power MOSFET Switch, Stable with Low ESR Output Ceramic
capacitors Up to 95% Efficiency. 25μA Shutdown Mode Thermal Shutdown Cycle-by-cycle over current protection Wide 4.75 to 25V operating input range Output Adjustable from 1.22 to 21V Programmable under voltage lockout
Standard SOP8 Packages
APPLICATIONS
PC Monitors. Distributed Power Systems Battery Charger Pre-Regulator for Linear Regulators
Functional Diagram
Ver1.0
1
OB2269
Ordering Information
Part Number SP1410ES
Pin Description
Package SOP8
SP1410
Operating Ambient Temperature -20 to +85 °C
Symbol Pin NO.
BS 1
IN 2
SW GND FB
3 4 5
COMP
6
EN 7 N/C 8
Description
High-Side Gate Drive Boost Input. BS supplies the drive for the high-side n-channel MOSFET switch.Connect a 10nF or greater capacitor from SW to BS to power the high-side switch.
Power .