APL5331_08 Datasheet, PDF (10/23 Pages) Anpec Electronics Coropration – 3A Bus Termination Regulator

APL5331
Operating Waveforms (Cont.)
3. Load Transient Response : I = +3A -> -3A -> +3A
OUT
- V = 2.5V, V = 3.3V
IN
CNTL
- V_REF is 1.250V supplied by a regulator
- C_OUT = 470µF/10V, ESR = 30mΩ
-
I
OUT
slew
rate
=
±3A/µs
I_OUT = +3A -> -3A
I_OUT = +3A -> -3A -> +3A
V_OUT
V_OUT
I_OUT
+3A
I_OUT = -3A -> +3A
V_OUT
I_OUT
I_OUT
Ch1 : V_OUT, 50mV/Div, DC,
Offset = 1.250V
Ax1 : I_OUT, 2A/Div
Time : 1µs/Div
-3A
Ch1 : V_OUT, 50mV/Div, DC,
Offset = 1.250V
Ax1 : I_OUT, 2A/Div
Time : 20µs/Div
Ch1 : V_OUT, 50mV/Div, DC,
Offset = 1.250V
Ax1 : I_OUT, 2A/Div
Time : 1µs/Div
4. Short-Circuit Test
- V_IN = 2.5V, V_CNTL = 3.3V
V is Shorted to GND
OUT
I_OUT
V_OUT is Shorted to VIN (2.5V)
I_OUT
V_OUT
Ch1 : V_OUT, 500mV/Div, DC,
Ax1 : I_OUT, 2A/Div
Time : 5ms/Div
V_OUT
V_OUT
I_OUT
Ch1 : V_OUT, 500mV/Div, DC,
Ax1 : I_OUT, 2A/Div
Time : 5ms/Div
Copyright © ANPEC Electronics Corp.
10
Rev. B.4 - Mar., 2008
www.anpec.com.tw