VDD VOUT CE Bias CS Vref GND Thermal Shutdown Current Limit 5 4 2 SOT89-5A (TOP VIEW) 3
A µf µf VDD VOUT A V A CE GND CS.µF µf µf VDD VOUT CE GND CS.µF
Schottky barrier diode VDD VOUT CE GND CS
VDD 9% Vout. % t... Fig, Soft-start capacitor vs VDD rise time µf µf VDD VOUT CE GND CS.µF ~3.3µF Fig, 2 Test Circuit
2 8 Power Dissipation(mW) 6 4 2 8 6 4 2 25 5 75 25 5 Ambient Temperature( C)
Input Voltage - Output Voltage Input Voltage - Input Current Output Voltage Vout (V) 2..8.6.4.2..8.6.4.2. RL= RL=2.4 RL=4 2 3 4 5 6 Input Current IDD (μa) 5 4 3 2 RL= 2 3 4 5 6 Input Voltage VDD (V) Input Voltage VDD (V) Load Regulation Line Regulation Load Regulation VLOAD (mv) 2 8 4 4 8 2 2 4 6 8 Line Regulation VLINE (mv) 5 5 RL=2 2 3 4 5 6 Output Current Io (ma) Input Voltage VDD (V) Ripple Rejection Ripple Rejection (db) 2 3 4 5 6 7 8 9. RL=2 RL=.2k. RL=2 Frequency f (khz)
Output Current - Output Voltage ESR stable area.6 Output Voltage Vout (V).4.2..8.6.4.2...2.4.6.8..2.4.6 Output Current Iout (A) ESR ( ).. Stable area 2 4 6 8 Output Current Iout (ma) Output Voltage Temperature Coefficient Output Voltage Vout (V) RL=2.6.4.2..8.6.4.2. 5 25 25 5 75 25 5 75 Temperature Ta (ºC) Load Transient response (Cin=Co=μF) IO=5mA 5mA µs/div IO=5mA µs/div ma IO:5mA/div IO:5mA/div VO:2mV/div VO:5mV/div
Input rise characteristics (VDD=V 2.2V, VCE=VDD) CE rise characteristics (VDD=2.2V, CE=V VDD) 5µs/div VDD:2.V/div 5µs/div CE:2.V/div Vo:.5V/div Vo:.5V/div Iin:2mA/div Iin:2mA/div Vout discharge characteristics (VDD=2.2V, CE=VDD V) Cs discharge characteristics (VDD=2.2V, CE=VDD V) 5µs/div CE:2V/div 5µs/div CE:2V/div Vo:.5V/div CS:.5V/div Rush Current Peak Level Co: Aluminum electrolytic capacitor Rush Current Peak Level (ma) CO=uF CO=uF CO=47uF CO=uF.. Cs (uf) CO=47uF Output rise time Output Rise Time (ms).. Cs (uf)
Input Voltage - Output Voltage Input Voltage - Input Current 4. 5 RL= Output Voltage Vout (V) 3.5 3. 2.5 2..5..5 RL= RL= RL=6.6 Input Current IDD (μa) 4 3 2. 2 3 4 5 6 2 3 4 5 6 Input Voltage VDD (V) Input Voltage VDD (V) Load Regulation Line Regulation Load Regulation VLOAD (mv) 2 8 4 4 8 2 2 4 6 8 Line Regulation VLINE (mv) RL=33 5 5 3.5 4. 4.5 5. 5.5 6. Output Current Iout (ma) Input Voltage VDD (V) Dropout Voltage Ripple Rejection.8 Dropout Voltage (V).7.6.5.4.3.2. Ripple Rejection (db) 2 3 4 5 6 7 8 RL=33 RL=33 RL=3.3k 2 4 6 8 9.. Output Current Io (ma) Frequency f (khz)
Output Current - Output Voltage ESR stable area 4. Output Voltage Vout (V) 3.5 3. 2.5 2..5..5...2.4.6.8..2.4.6 Output Current Iout (A) ESR ( ).. Stable area 2 4 6 8 Output Current Iout (ma) Output Voltage Temperature Coefficient Output Voltage Vout (V) RL=33 4. 3.5 3. 2.5 2..5..5. 5 25 25 5 75 25 5 75 Temperature Ta (ºC) Load Transient response (Cin=Co=μF) IO=5mA 5mA µs/div IO=5mA µs/div ma IO:5mA/div IO:5mA/div VO:2mV/div VO:5mV/div
Input rise characteristics (VDD=V 4.3V, VCE=VDD) CE rise characteristics (VDD=4.3V, CE=V VDD) 5µs/div VDD:2.V/div 5µs/div CE:2.V/div Vo:2.V/div Vo:2.V/div Iin:2mA/div Iin:2mA/div Vout discharge characteristics (VDD=4.3V, CE=VDD V) Cs discharge characteristics (VDD=4.3V, CE=VDD V) 5µs/div CE:2V/div 5µs/div CE:2V/div Vo:V/div CS:V/div Rush Current Peak Level Co: Aluminum electrolytic capacitor Rush Current Peak Level (ma) CO=uF CO=47uF CO=uF.. Cs (uf) CO=47uF CO=uF Output rise time Output Rise Time (ms)... Cs (uf)
Input Voltage - Output Voltage Input Voltage - Input Current Output Voltage Vout (V) 6 RL=6.6 5 4 RL= 3 2 RL= 2 3 4 5 6 Input Voltage VDD (V) Input Current IDD (μa) RL= 8 7 6 5 4 3 2 2 3 4 5 6 Input Voltage VDD (V) Load Regulation Line Regulation Load Regulation VLOAD (mv) 2 8 4 4 8 2 2 4 6 8 Output Current Iout (ma) Line Regulation VLINE (mv) RL=5 5 5 5.5 5.6 5.7 5.8 5.9 6. Input Voltage VDD (V) Dropout Voltage Ripple Rejection Dropout Voltage (V).8.7.6.5.4.3.2. 2 4 6 8 Output Current Iout (ma) Ripple Rejection (db) 2 3 4 RL=5 5 RL=5 6 7 8 RL=5k 9.. Frequency f (khz)
Output Current - Output Voltage 6 ESR stable area Output Voltage Vout (V) 5 4 3 2 ESR ( ). Stable area..2.4.6.8..2.4.6 Output Current Iout (A). 2 4 6 8 Output Current Iout (ma) Output Voltage Temperature Coefficient 6 RL=5 Output Voltage Vout (V) 5 4 3 2 5 25 25 5 75 25 5 75 Temperature Ta (ºC) Load Transient response (Cin=Co=μF) IO=5mA 5mA µs/div IO=5mA µs/div ma IO:5mA/div IO:5mA/div VO:2mV/div VO:5mV/div
Input rise characteristics (VDD=V 6.V, VCE=VDD) CE rise characteristics (VDD=6.V, CE=V VDD) 5µs/div VDD:5.V/div 5µs/div CE:5.V/div Vo:2.V/div Vo:2.V/div Iin:2mA/div Iin:2mA/div Vout discharge characteristics (VDD=6.V, CE=VDD V) Cs discharge characteristics (VDD=6.V, CE=VDD V) 5µs/div CE:5V/div 5µs/div CE:5V/div Vo:2V/div CS:V/div Rush Current Peak Level Co: Aluminum electrolytic capacitor Rush Current Peak Level (ma) CO=uF CO=47uF CO=uF CO=uF.. Cs (uf) CO=47uF Output rise time Output Rise Time (ms)... Cs (uf)