Datasheet

10
VOUT
11
12
THERMAL
SHUTDOWN
13
IMON
2VIN
3
1
I
OUT
/ 66k
1.0V
7IMAX
+
10 uA
Q
Pump
+
Constant
Power
Engine
S
+
-
V(DS) Detector
I(D)
Detector
+
5GND
+
8IFLT
I
OUT
14 PG
V
IN
-300mV
+
V
OUT
15 FLT
9CT
R RR
6LTCH
VIN
I
OUT
______
200k
FLT
1.35 V
34 uA
1.25 uA
CT
Charge
+
200 mV
+
16EN
+
1.5V
Internal Rail
+
2.7 / 2.6
PWRG\
PWRG\
S Q
QR
33 uA
+
FLT
4
+
LCAFT
1.6 x I
LIM
10M
18M
VIN
TPS2420
www.ti.com SLUS903E –JANUARY 2009–REVISED MAY 2013
TPS2420 FUNCTIONAL BLOCK DIAGRAM
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