MAX630EJA MAXIM [Maxim Integrated Products], MAX630EJA Datasheet - Page 12

• Manufacturer Part Number: MAX630EJA
• Description: CMOS Micropower Step-Up Switching Regulator
• Manufacturer: MAXIM [Maxim Integrated Products]

CMOS Micropower Step-Up
Switching Regulator
Figure 8. ±12V Dual-Tracking Regulator
Table 2. Maxim DC-DC Converters
12
ICL7660
MAX4193
MAX630
MAX631
MAX632
MAX633
MAX4391
MAX634
MAX635
MAX636
MAX637
MAX638
MAX641
MAX642
MAX643
DEVICE
______________________________________________________________________________________
-12V, 15mA
NEG OUT
Charge-Pump Voltage Inverter
DC-DC Boost Converter
DC-DC Boost Converter
DC-DC Boost Converter
DC-DC Boost Converter
DC-DC Boost Converter
DC-DC Voltage Inverter
DC-DC Voltage Inverter
DC-DC Voltage Inverter
DC-DC Voltage Inverter
DC-DC Voltage Inverter
DC-DC Voltage Step-Down
High-Power Boost Converter
High-Power Boost Converter
High-Power Boost Converter
150μF
DESCRIPTION
1N914
250μH
100kΩ
R3
C
L
X
X
5
3
150pF
68pF
MAX634
V
FB
8
N.C.
V
LBD
REF
7
2
+V
100kΩ
6
GND
S
INPUT VOLTAGE
R4
2.4V to 16.5V
2.0V to 16.5V
1.5V to 12.6V
1.5V to 15.6V
2.3V to 16.5V
2.3V to 16.5V
2.3V to 16.5V
2.3V to 16.5V
1.5V to 12.6V
1.5V to 15.6V
1.5V to 5.6V
1.5V to 5.6V
1.5V to 10V
4V to 16.5V
3V to 16.5V
4
INPUT, 9V BATTERY
R6
18kΩ
R5
100kΩ
6
4
I
GND
C
+V
C
OUTPUT VOLTAGE
X
5
S
2
100pF
47pF
MAX630
500μH
V
V
V
Up to -20V
Up to -20V
OUT
OUT
OUT
LBD
+12V
+15V
+12V
+15V
-12V
-15V
-V
+5V
+5V
-5V
8
IN
> V
> V
< V
L
X
LBR
3
V
IN
IN
IN
1
FB
IN914
7
Not regulated
RC4193 2
Improved RC4191 2
Only 2 external components
Only 2 external components
Only 2 external components
RC4391 2
Improved RC4391 2
Only 3 external components
Only 3 external components
Only 3 external components
Only 3 external components
Drives external MOSFET
Drives external MOSFET
Drives external MOSFET
R1
82kΩ
R2
10kΩ
COMMENTS
nd
nd
330μF
source
source
POS OUT
+12V, 45mA
nd
nd
source
source