CAT9554 Datasheet, PDF (9/28 Pages) Catalyst Semiconductor – Catalyst Semiconductor

dc-dc converters
5V Output
VIN
+
3.3V
-
CNEG
IN
CPOS
OUT
CAT3200-5
ON OFF _SHDN
GND
VOUT = 5V
IOUT ≤ 50mA, for VIN ≥ 2.8V
IOUT ≤ 90mA, for VIN ≥ 3V
Adjustable Output
CNEG CPOS
VIN
IN
OUT
CAT3200
+
3.3V
-
ON OFF _SHDN
FB
GND
CAT3200/CAT3200-5
Low Noise Regulated Charge Pump DC-DC Converter
Features
5V
VOUT
■ regulated output voltage
100mA
(5V fixed CAT3200-5,adjustable CAT3200)
■ 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_OUT = 1 µF
■ shutdown current less than 1 µA
■ foldback current overload protection
■ soft start,slew rate control
VOUT
100mA
■ thermal overload shutdown protection
R2
Package Information
■ CAT3200 in MSOP-8
R1
■ CAT3200-5 in low profile (1mm thin) 6-lead TSOT23
■ pin compatible with LTC3200 and LTC3200-5
( ^{VOUT = 1.27}
1+ ^R2
R1
CAT661
100mA CMOS Charge Pump Inverter/Doubler
Features
■ 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
- 25kHz or 135kHz
- enables optimum external capacitors
Package Information
■ 8-pin SOIC, DIP and 0.8mm thin 8-pad TDFN
■ pin compatible with MAX660, LTC660 and LM2660
ALOGEN ^FR
LEAD
F
R
E
E
TM
+VIN
1.5V to 5.5V
C1
+
1 BOOST/FC
V+ 8
2 CAP+
OSC 7
3 GND ^CAT661 LV 6
4 CAP-
OUT 5
VOLTAGE INVERTER
Inverted
Negative
Voltage
Output
C1 ⁺
VIN = 2.5V to 5.5V
1 BOOST/FC
V+ 8
2 CAP+
OSC 7
CAT661
3 GND
LV 6
4 CAP-
OUT 5
POSITIVE VOLTAGE DOUBLER
Doubled
Positive
Voltage
Output
www.catsemi.com
7