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SC560D Datasheet(PDF) 1 Page - Semtech Corporation |
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SC560D Datasheet(HTML) 1 Page - Semtech Corporation |
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1 / 18 page  POWER MANAGEMENT 1 SC560 Dual Output Low Noise LDO Linear Regulator © 2014 Semtech Corporation Features Input voltage range — 2.5V to 5.5V Output voltage ranges — 1.2V to 5.0V (each LDO) Maximum output current — 300mA (both LDOs) Dropout at 200mA load — 200mV max. Quiescent supply current — 100μA (both LDOs enabled) Shutdown current — 100nA (typ) Output noise < 50μV RMS (SC560A and xed output versions) PSRR < -65dB at 1kHz (SC560A and xed output versions) Over-temperature protection Short-circuit protection Under-voltage lockout Power good monitor for output A (SC560C and xed output versions) Independent enable/disable for LDOB (SC560B and xed output versions) MLPQ-UT8, 1.5mm x 1.5mm x 0.6mm package Lead-free and halogen-free Applications PDAs and cellular phones GPS devices Palmtop computers and handheld instruments TFT/LCD applications Wireless handsets Digital cordless phones and PCS phones Personal communicators Wireless LAN n n n n n n n n n n n n n n n n n n n n n n n Description The SC560 is a family of dual output, ultra-low dropout linear voltage regulators designed for use in battery powered wireless applications. The SC560A, SC560B, and SC560C provide adjustable output voltages that can be set using two external resistors. Fixed output voltages are also available (see ordering information for available combinations). Fixed output devices provide the power- good monitor, independent enable pins, and a bypass pin for low-noise operation All members of the SC560 family require an input voltage level between 2.5V and 5.5V. Output voltages for the adjustable versions can vary between 1.2V and 5.0V. Fixed output voltage options are also chosen from this range. The SC560A provides superior low-noise performance by using an external bypass capacitor connected to pin 7 to lter the bandgap reference. The SC560B uses pin 7 as a separate enable pin for the second regulator output so the two outputs can be controlled independently. The SC560C uses this pin to provide a PGOOD output to hold a processor in reset when the voltage on OUTA is not in regulation. All other versions provide all three functions with xed output voltages (no feedback pins are provided). The device also provides protection circuitry such as current limiting, under-voltage lockout, and thermal protection to prevent device failures. Stability is maintained by using 1µF capacitors on the output pins. The MLPQ-UT8 package and 0402 ceramic capacitors minimize the required PCB area. C IN 2 .2 µF OU T A OU T B VIN EN B EN OU T B EN OU T A GN D EN B PG O OD B YP VIN SC560D C OUTA 1 µF C OUTB 1 µF C BYP 22 n F PG O OD Typical Application Circuit Rev. 7.1 |
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Similar Description - SC560D |
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