Texas Instruments (LM3524DM/NOPB) Regulating Pulse Width Modulator

Regulating Pulse Width Modulator, 5V to 40V, 1 Output, Boost, Buck, Flyback,550kHz, SOIC-16Product OverviewThe LM3524DM/NOPB is a regulating Pulse-width Modulator has improvedspecifications and additional features yet is pin for pin compatible withexisting 3524 families. New features reduce the need for additional externalcircuitry often required in the original version. The LM3524D has a ±1%precision 5V reference. The current carrying capability of the output drivetransistors has been raised to 200mA while reducing VCEsat and increasingVCEbreakdown to 60V. The common mode voltage range of the error-amp has beenraised to 5.5V to eliminate the need for a resistive divider from the 5Vreference. In the modulator the circuit bias line has been isolated from theshut-down pin. This prevents the oscillator pulse amplitude and frequency frombeing disturbed by shut-down. Also at high frequencies (?300kHz) the maximumduty cycle per output has been improved to 44% compared to 35% maximum dutycycle. In addition, this modulator can now be synchronized externally, throughpin 3.Wide common-mode input range for error-ampOne pulse per period (noise suppression)Improved maximum duty cycle at high frequenciesDouble pulse suppressionGreen product and no Sb/BrApplicationsPower ManagementProduct InformationSupply Voltage Min: 5VSupply Voltage Max: 40VNo. of Outputs: 1 OutputDuty Cycle (%): 49%Controller IC Case Style: SOICNo. of Pins: 16PinsSwitching Frequency: 550kHzTopology: Boost, Buck, FlybackOperating Temperature Min: 0°COperating Temperature Max: 80°CMSL: MSL 1 - Unlimited