APL5331
Operating Waveforms (Cont.)
3. Load Transient Response : IOUT = +3A -> -3A -> +3A
- VIN = 2.5V, VCNTL = 3.3V
- VREF is 1.250V supplied by a regulator
- COUT = 470µF/10V, ESR = 30mΩ
- IOUT slew rate = ±3A/µS
IOUT = -3A -> +3A
IOUT = +3A -> -3A
IOUT = +3A -> -3A -> +3A
VOUT
VOUT
VOUT
IOUT
IOUT
+3A
IOUT
-3A
Ch1 : VOUT, 50mV/Div, DC,
Offset = 1.250V
Ax1 : IOUT, 2A/Div
Ch1 : VOUT, 50mV/Div, DC,
Offset = 1.250V
Ch1 : VOUT, 50mV/Div, DC,
Offset = 1.250V
Ax1 : IOUT, 2A/Div
Time : 20µS/Div
Ax1 : IOUT, 2A/Div
Time : 1µS/Div
Time : 1µS/Div
4. Short-Circuit Test
- VIN = 2.5V, VCNTL = 3.3V
VOUT is Shorted to GND
VOUT is Shorted to VIN (2.5V)
IOUT
VOUT
IOUT
VOUT
IOUT
VOUT
Ch1 : VOUT, 500mV/Div, DC,
Ax1 : IOUT, 2A/Div
Ch1 : VOUT, 500mV/Div, DC,
Ax1 : IOUT, 2A/Div
Time : 5mS/Div
Time : 5mS/Div
Copyright ANPEC Electronics Corp.
Rev. A.8 - Oct., 2003
9
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
