UM3502QA Datasheet, PDF (7/13 Pages) Union Semiconductor, Inc. – Low-Profile, 600mA, Synchronous Step-Down Converter with Integrated Inductor

UM3502QA
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.)
Ripple
(I_OUT=20mA)
Ripple
(I_OUT=20mA)
BW=20MHz
VIN=5.0V, BW=20MHz
VOUT
20mV/div
VOUT
10µs/div
20mV/div
10µs/div
Start-up from Shutdown
(I_OUT=300mA)
VOUT
1V/div
VRUN
1V/div
20µs/div
Block Diagram
OSC
SLOPE
COMP
ISENSE
AMP
PVIN
0.6V
+
EA
FB
-
-
ICOMP
+
_
SQ
__
RQ
RS LATCH
PWM
LOGIC
AVIN
EN
AGND
REF
0.6V
DRV
IZERO
COMP
NC(SW)
VOUT
PGND
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http://www.union-ic.com Rev.01 Nov.2015
7/13