®
L296 L296P
HIGH CURRENT SWITCHING REGULATORS
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4 A OUTPUT CURRENT 5.1 V TO 40 V OUTPUT VOLT...
®
L296 L296P
HIGH CURRENT SWITCHING
REGULATORS
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4 A OUTPUT CURRENT 5.1 V TO 40 V OUTPUT VOLTAGE RANGE 0 TO 100 % DUTY CYCLE RANGE PRECISE (±2 %) ON-CHIP REFERENCE SWITCHING FREQUENCY UP TO 200 KHz VERY HIGH EFFICIENCY (UP TO 90 %) VERY FEW EXTERNAL COMPONENTS SOFT START RESET OUTPUT EXTERNAL PROGRAMMABLE LIMITING CURRENT (L296P) CONTROL CIRCUIT FOR CROWBAR SCR INPUT FOR REMOTE INHIBIT AND SYNCHRONUS PWM THERMAL SHUTDOWN
Multiwatt (15 lead)
®
ORDERING NUMBERS : L296 (Vertical) L296HT (Horizontal) L296P (Vertical) L296PHT (Horizontal)
DESCRIPTION The L296 andL296P are stepdownpowerswitching
regulators delivering 4 A at a voltage variable from 5.1 V to 40 V. Featuresof the devices includesoft start, remoteinhibit, thermal protection, a reset output for microprocessors and a PWM comparator input for synchronization in multichip configurations. The L296P incudes external programmable limiting current. PIN CONNECTION (top view)
The L296 and L296P are mounted in a 15-lead Multiwatt® plasticpowerpackageand requiresvery few external components. Efficient operation at switching frequencies up to 200 KHz allows a reduction in the size and cost of external filter components. A voltage sense input and SCR drive output are provided for optional crowbar overvoltage protection with an external SCR.
June 2000
1/22
L296 - L296P
PIN FUNCTIONS
N° 1 Name CROWBAR INPUT Function Voltage Sense Input for Crowbar Overvoltage Protection. Normally connected to the fee...