Voltage Regulators AN77xxSP Series 3-pin, positive output, low dropout voltage regulator (1.2 A type) Overview AN77xxSP series Unit: mm The AN77xxSP series is stabilized constant-voltage 6.500.10 power supplies with small difference between I/O volt- 5.300.10 4.350.20 ages (0.5 V typ.). It is suitable for low-voltage, battery- 3.000.20 1.000.20 driven equipment, and home appliances and industrial equipment with great fluctuation of the supply voltage. The output voltage ranges: 3.3 V, 3.5 V, 5 V, 6 V, 7 V, 8 V, 9 V, 10 V, 12 V, and 15 V 2 Features 1 3 0.750.10 2.30 0.550.15 Minimum I/O voltage difference: 0.5 V typ. 4.600.10 0.100.05 On-chip overcurrent limiter On-chip thermal protection circuit On-chip inrush current protection circuit at the time of SP-3SU input voltage start-up On-chip input short-circuit protection circuit Note) The package of this product will be changed (When the input pin is short-circuited to the ground, the to lead-free type (SP-3SUA). See the new pack- circuit between pins 1 and 3 is shut down to prevent age dimensions section later of this datasheet. current flow.) Applications Power supply equipment Block Diagram Output stage Input short-circuit protection Overcurrent limiter Inrush current protection R1 V REF Thermal protection Error amplifier R2 12 3 Publication date: November 2001 SFF00003CEB 1 Starter Voltage reference Output driver 1.800.30 0.20 max. 2.500.20 2.300.10 0.80 max. 5.500.20 7.300.10 9.800.10 1.000.30AN77xxSP Series Pin Descriptions Pin No. Description 1 Input pin (In) 2 Ground pin (COM) 3 Output pin (Out) Absolute Maximum Ratings at T = 25C a Parameter Symbol Rating Unit 2 * Supply voltage V 30 V IN 3 * Supply current I 2.4 A IN 4 * Power dissipation P 5.0 W D 1 * Operating ambient temperature T 30 to +85 C opr 1 * Storage temperature T 55 to +150 C stg Note) 1: Expect for the operating ambient temperature and storage temperature, all ratings are for T = 25C. * a 2: At the application of V = 30 V, the overvoltage protection may be operated by the ASO protection circuit, leading to the * IN output shut down. 3: The current value does not exceed this criterion because of the on-chip current limiter. * 4: The internal circuit shuts off the output when T 150C (designed value). The relationship between the IC power * j dissipation and ambient temperature shall conform to the derating curve ( Main Characteristics P T ). D a Recommended Operating Conditions at I = 500 mA, T = 25C OUT a Part No. Output voltage Operating supply voltage range (V ) Unit IN AN77033SP 3.3 4.3 to 14 V AN77035SP 3.5 4.5 to 14 V AN7705SP 5 6 to 16 V AN7706SP 6 7 to 17 V AN7707SP 7 8 to 18 V AN7708SP 8 9 to 19 V AN7709SP 9 10 to 20 V AN7710SP 10 11 to 21 V AN7712SP 12 13 to 23 V AN7715SP 15 16.5 to 26.5 V SFF00003CEB 2