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KP1500

KTC
Part Number KP1500
Manufacturer KTC
Description 3A PWM Buck Switching Regulator
Published Feb 19, 2009
Detailed Description KP1500 www.DataSheet4U.com 150Khz, 3A PWM Buck Switching Regulator „ General Description The KP1500 series are monolith...
Datasheet PDF File KP1500 PDF File

KP1500
KP1500

Overview
KP1500 www.
DataSheet4U.
com 150Khz, 3A PWM Buck Switching Regulator „ General Description The KP1500 series are monolithic integrated circuits that provide all the active functions for a step-down DC/DC converter, capable of driving a 3A load without additional transistor component.
Requiring a minimum number of external component, the board space can be saved easily.
The external shutdown function can be controlled by TTL logic level and then come into standby mode.
The internal compensation makes feedback control have good line and load regulation without external design.
Regarding protected function, thermal shutdown is to prevent over temperature operating from damage, and current limit is against over current operating of the output switch.
The KP1500 series operates at a switching frequency of 150Khz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators.
Other features include a guaranteed +4% tolerance on output voltage under specified input voltage and output load conditions, and +15% on the oscillator frequency.
The output version included fixed 3.
3V, 5V, 12V, and an adjustable type.
The packages are available in a standard 5-lead TO-220(T) package and a 5-lead TO-263(S).
„ Features - 3.
3V, 5V, 12V and adjustable output versions - Adjustable version output voltage range, 1.
23V to 28V +4% max over line and load condiction - Available in TO220-5L and TO263-5L packages - Voltage mode non-synchronous PWM control - Thermal-shutdown and current-limit protection - ON/OFF shutdown control input - Input voltage range up to 32V - Output load current: 3A - 150 kHz fixed frequency internal oscillator - Low power standby mode - Built-in switching transistor on chip „ Applications - Simple High-efficiency step-down(buck) regulator - Efficient preregulator for linear regulators - On-card switching regulators - Positive to negative converter - Battery Charger „ Pin Assignments ( Top View ) 5 SD 4 FB 3 Gnd 2 Out...


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