CAT1023 CATALYST [Catalyst Semiconductor], CAT1023 Datasheet - Page 9

• Manufacturer Part Number: CAT1023
• Description: Catalyst Semiconductor
• Manufacturer: CATALYST [Catalyst Semiconductor]

CAT661
100mA CMOS Charge Pump Inverter/Doubler
Features
Package Information
3.3V
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■
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5V Output
Adjustable Output
3.3V
TM
- 25kHz or 135kHz
- enables optimum external capacitors
8-pin SOIC,DIP and 0.8mm thin 8-pad TDFN
pin compatible with MAX660,LTC660 and LM2660
converts V+ to V- or V+ to 2V+
high power efficiency
industrial temperature range
low output resistance,4Ω typical
low quiescent current
pin-compatible,high-current alternative to 7660/1044
selectable charge pump frequency
V IN
V IN
+
+
-
-
ON OFF
ON OFF
V OUT = 5V
I OUT ≤ 50mA, for V IN ≥ 2.8V
I OUT ≤ 90mA, for V IN ≥ 3V
IN
SHDN
IN
SHDN
CNEG
CNEG
V OUT = 1.27 1+
CAT3200-5
CAT3200
GND
GND
CPOS
CPOS
(
OUT
OUT
R 2
R 1
FB
(
5V
R 2
w w w . c a t s e m i . c o m
R 1
V IN = 2.5V to 5.5V
V OUT
100mA
V OUT
100mA
C1
C1
CAT3200/CAT3200-5
CAT3200/CAT3200-5
Low Noise Regulated Charge Pump DC-DC Converter
Low Noise Regulated Charge Pump DC-DC Converter
Features
Features
Package Information
Package Information
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■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
+
+
(5V fixed CAT3200-5,adjustable CAT3200)
(5V fixed CAT3200-5,adjustable CAT3200)
regulated output voltage
100 mA output current
fixed high operating frequency at 2 MHz
input voltage operation down to 2.7 V
low quiescent current (1.7 mA typ)
low value external capacitors (1 µF)
low output ripple voltage, typical 30mV @ C
shutdown current less than 1 µA
foldback current overload protection
soft start,slew rate control
thermal overload shutdown protection
CAT3200 in MSOP-8
CAT3200-5 in low profile (1mm thin) 6-lead TSOT23
pin compatible with LTC3200 and LTC3200-5
1
2
3
4
1
2
3
4
POSITIVE VOLTAGE DOUBLER
BOOST/FC
CAP+
GND
CAP-
BOOST/FC
CAP+
GND
CAP-
VOLTAGE INVERTER
CAT661
CAT661
OSC
OUT
OSC
OUT
V+
LV
V+
LV
8
7
6
5
8
7
6
5
1.5V to 5.5V
d c - d c c o n v e r t e r s
+V IN
OUT
= 1 µF
Negative
Inverted
Doubled
Voltage
Positive
Voltage
Output
Output
7