Datasheet

TPS60310, TPS60311, TPS60312, TPS60313
SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,
HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE
SLVS362A – MAY 2001 – REVISED AUGUST 2001
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS60310 and TPS60311 functional block diagram
CP1
2x (Doubler)
Charge Pump
Oscillator
Control
C1F
C1+C1–
CP2
1.5x/2x
Charge Pump
Reg
_
+
_
+
V
ref
_
+
C2F
C2+C2–
PG
OUT1
OUT2
GND
SNOOZE
V
IN
(Push-Pull Output
for TPS60312 and
TPS60313)
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME NO.
I/O
DESCRIPTION
C1+ 4 Positive terminal of the flying capacitor C1F
C1– 2 Negative terminal of the flying capacitor C1F
C2+ 7 Positive terminal of the flying capacitor C2F
C2– 8 Negative terminal of the flying capacitor C2F
GND 9 GROUND
OUT1 5 O 2 × V
IN
power output. Bypass OUT1 to GND with the output filter capacitor C
(OUT1)
.
OUT2 6 O Regulated 3.3-V power output (TPS60310, TPS60312) or 3-V power output (TPS60311, TPS60313), respectively
Bypass OUT2 to GND with the output filter capacitor C
(OUT2)
.
PG 10 O Power good detector output. As soon as the voltage on OUT2 reaches about 98% of its nominal value this pin goes
high.
Open drain output on TPS60310 and TPS60311. A pullup resistor should be connected between PG and OUT1 or
OUT2.
Push-pull output stage on TPS60312 and TPS60313
SNOOZE 1 I Snooze mode enable input
– SNOOZE
= Low enables the snooze mode at low output current.
– SNOOZE
= High disables the snooze mode.
V
IN
3 I Supply input. Bypass V
IN
to GND with a ≥ 1-µF capacitor.