MAX1771CSA+ Maxim, MAX1771CSA+ Datasheet - Page 15

• Manufacturer Part Number: MAX1771CSA+
• Description: Step-Up DC-DC Controller, 2.0-16.5 Vin, 12 V or Adj. Vout, 0 to 70 C, SOIC8
• Manufacturer: Maxim

Specifications of MAX1771CSA+

• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

Figure 7. -48V Input to 5V Output at 300mA, Without a Transformer
Figure 8. 2V Input to 24V Output LCD Bias
0.1µF
C5
3
4
7
5
FB
GND
SHDN
REF
MAX1771
______________________________________________________________________________________
3.3V OR 5V
BATTERY
INPUT
2V TO 12V
ON
10µF
100V
SUPPLY
AGND
C6
LOGIC
EXT
CS
V+
220µH–680µH
OFF
1
8
2
6
12V or Adjustable, High-Efficiency,
D03340
0.1µF
4
0.1µF
Low I
2
-48V
SHDN
L1
REF
MAX1771
5
1
3
MMBT8099LT1
Q1
MTD6N10
R1
0.15Ω
V+
2
GND
MBRS1100T3
EXTL
Q2
6, 7
CS
FB 3
5.1kΩ
D1
Q
R9
1
8
R5
1kΩ
R SENSE
, Step-Up DC-DC Controller
0.2Ω
22µH
L1
R6
200kΩ
MMFT3055ELT1
C8
1µF
N
CMPSH-3
D3
1N5817
D2
CMPZ5240/
MMBZ5240BL
10kΩ
10kΩ
R3
200Ω
R7
2.2µF
20V
ADJ = 12V TO 24V
R2
150kΩ
C4
(AS SHOWN)
OUTPUT
MMBT8599LT1
47µF
C7
220pF
Q3
R2
47kΩ
1%
R4
100kΩ
R3
16kΩ
1%
C1
220µF
10V
C2
220µF
10V
300mA
+5V
C3
0.33µF
15