DC-DC Converter. GS5159 Datasheet

GS5159 Converter. Datasheet pdf. Equivalent

Part GS5159
Description 24V 1.5A 1.4MHz Asynchronous Step-Down DC-DC Converter
Feature GS5159 24V 1.5A 1.4MHz Asynchronous Step-Down DC-DC Converter Product Description The GS5159 is a m.
Manufacture Globaltech
Datasheet
Download GS5159 Datasheet

GS5159 24V 1.5A 1.4MHz Asynchronous Step-Down DC-DC Converte GS5159 Datasheet
Recommendation Recommendation Datasheet GS5159 Datasheet





GS5159
GS5159
24V 1.5A 1.4MHz Asynchronous Step-Down DC-DC
Converter
Product Description
The GS5159 is a monolithic step-down switch
mode converter with a built-in power MOSFET. It
achieves 1.5A peak 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.
The GS5159 requires a minimum number of
readily available standard external components.
The GS5159 is available in SOT23-6L packages.
Features
„ 1.5A Peak Output Current
„ 0.3Internal Power MOSFET Switch
„ Stable with Low ESR Output Ceramic
Capacitors
„ Up to 92% Efficiency
„ Fixed 1.4MHz Frequency
„ Current Mode Operation
„ Over Temperature Protection
„ Cycle-by-Cycle Over Current Protection
„ Wide 4.5V to 24V Operating Input Range
„ Output Adjustable from 0.81V to 15V
„ 0.1uA Shutdown Current
„ RoHS Compliant
Applications
„ Distributed Power Systems
„ Battery Charger
„ OLPC Netbook
„ Pre-Regulator for Linear Regulators
„ WLED Drivers
Functional Block Diagram
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GS5159
Packages & Pin Assignments
GS5159RF (SOT-23-6L)
Symbol
BS
GND
FB
EN
VIN
SW
Pin
1
2
3
4
5
6
Ordering Information
Function
Bootstrap. A 10nF capacitor is connected between SW and BS pins to
drive the power switch’s gate above the supply voltage.
Ground. This pin is the voltage reference for the regulated output
voltage. For this reason care must be taken in its layout.
Feedback. An external resistor divider from the output to GND, tapped
to the FB pin sets the output voltage.
On/Off Control Input. Pull EN above 1.5V to turn the device on.
Power Supply Input. Drive 4.5V to 24V voltage to this pin to power on
this chip. Connecting a 10uF ceramic bypass capacitor between VIN
and GND to eliminate noise.
Switch Output. Connect this pin to the switching end of the inductor.
Part Number
GS5159RF
Marking Information
Package
SOT-23-6L
Q’ty / Reel
3000 PCS
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