Rainbow Electronics MAX742 - Manual (Page 8)

MAX742
Switch-Mode Regulator with
+5V to ±12V or ±15V Dual Output
8 _______________________________________________________________________________________
MAX742
Q2
Q1
CSH+
VIN
4.5V to 6V*
CSL+
1
J1
C2
3.3nF
+VO
OPTIONAL
D1
L3
25 µ H
L1
100 µ H
C8
150 µ F
C6 D4 D3
C9
150 µ F
C14
2.2 µ F
GND
EXT+
PUMP
PDRV
EXT-
V+
CSH-
CSL-
C7
1 µ F
C13
0.1
µ F
DISC CERAMIC
C1
0.1
µ F
NOTES:
Q1 = Motorola MTP15N05L
Q2 = Motorola MTP12P05
L1, L2 = MAXL001
C8–C12 = MAXC001
D1, D2 = 1N5817
D3, D4 = Fuji ERA82-004 or 1N5817
R2, R3 = RCD RSF 1A Metal Film ±3%
L3, L4 = Wilco MFB 250
R3
0.1
Ω
C10
150 µ F
C3
10 µ F
R1
100 Ω
C4
C5
3.3nF
L2
100 µ H
-VO
POINT
A
OPTIONAL
D2
L4
25 µ H
C11
150 µ F
C12
150 µ F
C15
2.2 µ F
1 µ F
FB+
CC+
AGND
AV+
100/200
12/15
VREF
* FOR HIGHER INPUT VOLTAGE, SEE
SUPPLY-VOLTAGE RANGE SECTION.
SS
CC-
FB-
R2
0.16 Ω
Figure 2. Standard 6W Application Circuit