sc1153 Semtech Corporation, sc1153 Datasheet
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sc1153
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sc1153 Summary of contents
Page 1
... Power good signal- ing, logic compatible shutdown, and over voltage pro- tection are also provided. The SC1153 operates at a fixed 200KHz, providing an optimum compromise between efficiency, external component size, and cost. PIN CONFIGURATION ...
Page 2
... CS(-)) < 60mV CONDITIONS (1) = 5.0 (1) ( 4.5V PGND = 4.5V PGND = 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1153 MIN TYP MAX UNITS See Output Voltage Table ...
Page 3
... Vcc for Low Side Driver (Boost) Vcc for High Side Driver (Boost) Logic Low shuts down the converter Top end of internal feedback chain Programming Input (MSB) Programming Input Programming Input Programming Input Programming Input (LSB) 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1153 within 10% of setpoint O 3 ...
Page 4
... Various 8 Turns 16AWG on MICROMETALS T50-52D core See notes FET selection requires trade-off between efficiency and cost. Absolute maximum R IRC OAR-1 Series Various Various Various Various SEMTECH 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1153 C10 5mOhm 1000uF 1000uF 1000uF + + + ...
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... MITCHELL ROAD NEWBURY PARK CA 91320 SC1153 = 25°C J MIN TYP MAX UNITS 1.287 1.300 1.313 V 1.336 1.350 1.364 1.386 1.400 1.414 1.435 1.450 1 ...
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... PRELIMINARY - October 3, 2000 CHARACTERISTIC CURVES SC1153 Efficiency in Application Circuit (Figure 1). 100% 95% 90% 85% 80% 75% 70 SC1153 Regulation in Application Circuit (Figure 1 -10 -15 -20 - Output Current (Amps) © 2000 SEMTECH CORP. PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS Vo=3.5V 3.0V 2.5V 1.8V 2. Output Current (Amps) ...
Page 7
... The latch is reset at the start of each oscillator period. The PWRGOOD and OVP signals are derived from the voltage at the VOSENSE pin by comparators fed from the internal feedback chain. ECN00-1346 © 2000 SEMTECH CORP. PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1153 Ref. MS-013AC 7 ...