AN6545

AN6545, AN6545SP Low Power Loss Voltage Regulators s Overview T he AN6545 and AN6545SP are the voltage regulators with strobe pin which can turn on/off an output. A rated load current is 150mA and an output voltage is fixed at 5V. AN6545 8.0 +0.5 – 0.1 Unit:mm 3.05 3.8 1.94 11.5max. 15.0min. s Features • 150mA rated load current and 5V fixed output voltage • Capable of turning off an output by setting the strobe pin to the “L” level • Minimum input/output voltage difference:typ. 0.25V • Built-in overcurrent protective circuit • TO-126 (4-lead) package for the AN6545, and surfacemount type 5-pin SIL plastic package for the AN6545SP 1 234 1.778 5.334 1234 3.5max. 1.778 1.778 0.5±0.2 0.5±0.1 1.44 1.76 4-pin SIL Plastic Package (SSIP004-P-0000B) AN6545SP 1.5±0.25 8.5±0.4 7.5±0.3 5.0±0.25 Unit:mm 2.3±0.3 0.5±0.1 9.5±0.4 0.7±0.1 1.5±0.25 5.5±0.3 0 — 0.2 1.2±0.25 + 0.1 1.27 0.5±0.1 (1.1) (2.5) 0.5 – 0.05 12345 5-pin SIL Plastic Package (HSIP005-P-0000) s Block Diagram 1 Over Current Detector 2 4 Starter Current Source Saturation Detector Voltage Fluctuation Detector 3 + VI 5 1 GND – 3 Fin Voltage Reference The numbers in are the pin numbers of the AN6545SP s Absolute Maximum Ratings (Ta=25˚C) Parameter Supply voltage Power dissipation AN6545 AN6545SP AN6545 AN6545SP Symbol VI PD Topr Tstg Rating 14.4 1300 * 500 –20 to+75 –55 to+150 –55 to+125 Unit V mW mW ˚C ˚C ˚C Operating ambient temperature Storage temperature * Mounted onto the PCB s Electrical Characteristics (Ta=25˚C) Parameter Output voltage Output voltage range Bias current Load regulation Line regulation Minimum input/output voltage difference Rush current Output short-circuit current Load bias current change Off-state cathode current Strobe pin input current Strobe pin threshold voltage Ripple rejection ratio Symbol VO Vt Ibias REGL REGIN VDIF (min) Irush IO (short) ∆Ibiasl IOFF IS VS (TH) RR Condition VI=12V, IO=150mA VI=6 to 14.4V, IO=0 to 150mA VI=12V, IO=0mA VI=12V, IO=0 to 150mA VI=6 to 14V, IO=150mA VI=4.5V, IO=150mA VI=4.5V, IO=0mA VI=12V VI=12V, IO=0 to 150mA VI=12V, VS=0V VI=12V, VS=2.5V VI=12V VI=10 to 14V, IO=150mA, f=120kHz 0.8 2 55 350 2.5 550 10 2 200 2.4 min 4.8 4.7 typ 5 5 2.9 max 5.2 5.3 4 100 100 5 Unit V V mA mV mV V mA mA mA µA µA V dB s Application Circuit 3 5 In 10µF 1 AN6545 AN6545SP 3 F 2 1 4 STB Out 10µF The number in are the pin numbers of the AN6545SP at low · When usingfor aoutputtemperature, it is recommended to use capacitors with low internal impedance (for example, tantalum capacitors) capacitors. s Characteristics Curve II –VI 4 (Iout=0mA) VI=12V 5.2 VOUT –Ta Input Current II (mA) 3 Output Voltage VOUT (V) 5.1 2 5.0 4.9 1 4.8 0 0 2 4 6 8 10 12 14 16 –40 0 40 80 120 160 Input Voltage VI (V) Ambient Temperature Ta (˚C) VOUT –VSTB 8 VI=12V 7 6 5 4 3 2 1 0 0 0 1 2 3 1.5 (1.45W) PD –Ta When Mounted on PCB; 10mm × 10mm, With Cu Foil, ø3cm Al Substrate Used Power dissipation PD (W) Output Voltage VOUT (V) 1.0 0.5 Single Unit 0 50 100 125 150 Strobe Pin Voltage VSTB (V) Ambient Temperature Ta (˚C)