UM3506QA Datasheet, PDF (5/9 Pages) Union Semiconductor, Inc. – Synchronous Step-Down Converter

UM3506QA
Typical Performance Characteristics (Continued)
(V_IN=3.6V, V_OUT=1.8V, C_IN=4.7μF, C_OUT=10μF, T_A=+25°C, unless otherwise noted.)
Line Transient Response
(V_IN=3.5V to 4.5V, I_OUT=300mA)
Load Transient Response
(V_IN=3.5V, I_OUT=100mA to 450mA)
VIN
2V/div
IOUT
200mA/div
VOUT
100mV/div
50μs/div
VOUT
100mV/div
100μs/div
Pulse Skipping Mode Operation
(I_OUT=1mA)
Normal Operation
(I_OUT=100mA)
SW
1V/div
SW
100µ s/div
1V/div
500ns/div
Ripple and HF Noise
(I_OUT=300mA)
BW=20MHz
Ripple and HF Noise
(I_OUT=300mA)
BW=200MHz
VOUT
5mV/div
1µs/div
VOUT
5mV/div
1µs/div
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http://www.union-ic.com Rev.01 Oct.2016
5/9