SC560CULTRT Semtech

SC560 Dual Output Low Noise LDO Linear Regulator POWER MANAGEMENT Features Description n Input voltage range 2.5V to 5.5V The SC560 is a family of dual output, ultra-low dropout n Output voltage ranges 1.2V to 5.0V (each LDO) linear voltage regulators designed for use in battery n Maximum output current 300mA (both LDOs) powered wireless applications. The SC560A, SC560B, and n Dropout at 200mA load 200mV max. SC560C provide adjustable output voltages that can be n Quiescent supply current 100A (both LDOs set using two external resistors. Fixed output voltages enabled) are also available (see ordering information for available n Shutdown current 100nA (typ) combinations). Fixed output devices provide the power- n Output noise < 50V (SC560A and xed output good monitor, independent enable pins, and a bypass pin RMS versions) for low-noise operation n PSRR < -65dB at 1kHz (SC560A and xed output versions) All members of the SC560 family require an input voltage n Over-temperature protection level between 2.5V and 5.5V. Output voltages for the n Short-circuit protection adjustable versions can vary between 1.2V and 5.0V. Fixed n Under-voltage lockout output voltage options are also chosen from this range. n Power good monitor for output A (SC560C and xed output versions) The SC560A provides superior low-noise performance n Independent enable/disable for LDOB (SC560B and by using an external bypass capacitor connected to pin xed output versions) 7 to lter the bandgap reference. The SC560B uses pin 7 n MLPQ-UT8, 1.5mm x 1.5mm x 0.6mm package as a separate enable pin for the second regulator output n Lead-free and halogen-free so the two outputs can be controlled independently. The SC560C uses this pin to provide a PGOOD output Applications to hold a processor in reset when the voltage on OUTA is not in regulation. All other versions provide all three n PDAs and cellular phones functions with xed output voltages (no feedback pins n GPS devices are provided). n Palmtop computers and handheld instruments n TFT/LCD applications The device also provides protection circuitry such as n Wireless handsets current limiting, under-voltage lockout, and thermal n Digital cordless phones and PCS phones protection to prevent device failures. Stability is n Personal communicators maintained by using 1F capacitors on the output pins. n Wireless LAN The MLPQ-UT8 package and 0402 ceramic capacitors minimize the required PCB area. Typical Application Circuit SC560D PGOOD VIN PGOOD VIN OUTA EN OUTA EN OUTB ENB OUTB ENB C IN C C C BYP OUT A OUT B BYP GND 2.2F 22nF 1F 1F Rev. 7.1 2014 Semtech Corporation 1SC560 Pin Con guration Ordering Information Device Package (1)(2)(3) SC560xULTRT MLPQ-UT8 1.51.5 (3) SC560xEVB Evaluation Board 8 1 7 Notes: (1) Available in tape and reel only. A reel contains 3,000 devices. TOP VIE W (2) Available in lead-free package only. Device is WEEE and RoHS compliant and halogen-free. 2 6 (3) The device variant is denoted by the x. 3 5 4 MLPQ-UT-8 1.5x1.5, 8 LEAD = 157C/W JA Marking Information Pinout and Voltage Options Output Voltage Pin Options Part Options Device No. Code Pin 4 Pin7 Pin 8 V V LDOA LDOB SC560A FBA BYP FBB ADJ ADJ 0A SC560B FBA ENB FBB ADJ ADJ 0B SC560C FBA PGOOD FBB ADJ ADJ 0C SC560D ENB BYP PGOOD 2.8V 1.8V 0D 0n SC560E ENB BYP PGOOD 2.85V 2.85V 0K SC560F ENB BYP PGOOD 2.5V 1.8V 0L yw SC560G ENB BYP PGOOD 2.8V 1.5V 0U SC560H ENB BYP PGOOD 3.3V 3.3V 0S SC560L ENB BYP PGOOD 3.3V 1.8V 0Z 0n = Part No. Code See Pinout and Voltage Options Table for details yw = Datecode 2