參數資料
型號： CAT4134
英文描述： Catalyst Semiconductor
中文描述： Catalyst半導體
文件頁數： 9/28頁
文件大?。?/td> 844K
代理商： CAT4134
7
www.catsemi.com
H
A
L
O
G
E
N
F
R
E
E
TM
L
E
A
D
F
R
E
E
Features
■
regulated output voltage
(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
■
thermal overload shutdown protection
Package Information
■
CAT3200 in MSOP-8
■
CAT3200-5 in low profile (1mm thin) 6-lead TSOT23
■
pin compatible with LTC3200 and LTC3200-5
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, 4
Ω
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
CAT3200/CAT3200-5
Low Noise Regulated Charge Pump DC-DC Converter
d c - d c c o n v e r t e r s
CAT3200-5
CNEG
CPOS
IN
OUT
ON OFF
SHDN
GND
+
-
5V Output
3.3V
CAT3200
CNEG
CPOS
IN
OUT
ON OFF
SHDN
GND
+
-
3.3V
VIN
5V
100mA
VOUT
VOUT = 5V
IOUT ≤ 50mA, for VIN ≥ 2.8V
IOUT ≤ 90mA, for VIN ≥ 3V
Adjustable Output
VIN
FB
R2
R1
100mA
VOUT
VOUT = 1.27 1+
(
R2
R1
■
pin compatible with MAX660, LTC660 and LM2660
8
7
6
5
1
2
3
4
BOOST/FC
CAP+
GND
CAP-
V+
OSC
LV
OUT
CAT661
+VIN
1.5V to 5.5V
Inverted
Negative
Voltage
Output
+
VOLTAGE INVERTER
C1
8
7
6
5
1
2
3
4
Doubled
Positive
Voltage
Output
+
VIN = 2.5V to 5.5V
BOOST/FC
CAP+
GND
CAP-
V+
OSC
LV
OUT
CAT661
POSITIVE VOLTAGE DOUBLER
C1
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