MAX1630 Datasheet, PDF (24/28 Pages) Maxim Integrated Products – Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers

Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
_______________________________________________________________________________Application Circuits
INPUT
+5.2V TO +24V
TO +3.3V OUTPUT
*
*
TO +5V OUTPUT
C3
10Ω
C4
ON/OFF
C1
+3.3V
OUTPUT
(3A)
2.7µF
R1
T1
1:4 ^0.1µF
1N5819
4.7µF 0.1µF
23 22 6 21
SHDN V+ SYNC VL
5 _VDD
12OUT ⁴
25 _BST3
Q1 27 _DH3
BST5 ¹⁸
DH5 ^{16 Q3}
0.1µF _{26 LX3}
Q2 24 _DL3
MAX1630
MAX1633
LX5 ^{17 0.1µF}
DL5 ^{19 Q4}
PGND ²⁰
1 _CSH3
CSH5 ¹⁴
0.1µF 4.7µF
2.2µF
0.1µF
L2
R2
1N5819
+5V
ALWAYS ON
+12V
AT 120mA
+5V OUTPUT (3A)
*
C2
2 _CSL3
CSL5 ¹³
3 _FB3
FB5 ¹²
3V ON/OFF
5V ON/OFF
28 _RUN/ON3
7 _TIME/ON5
SEQ ¹⁵
REF ⁹
1µ F
RESET ¹¹
R1 = R2 = 20mΩ
L2 = 10µH SUMIDA CDRH125-100
T1 = 10µH 1:4 TRANSFORMER
TRANSPOWER TECHNOLOGIES TTI-5902
Q1–Q4 = Si4410DY or IRF7413
C1 = 3 x 220µF 10V SPRAGUE 594D227X0010D2T
C2 = 2 x 220µF 10V SPRAGUE 594D227X0010D2T
C3 = C4 = 2 x 10µF 30V SANYO OS-CON 30SC10M
SKIP GND
10
8
*VL DIODES AND OUTPUT SCHOTTKY DIODES REQUIRED
FOR THE MAX1630 ONLY (SEE OUTPUT OVERVOLTAGE PROTECTION
AND OUTPUT UNDERVOLTAGE SHUTDOWN PROTECTION SECTIONS).
+2.5V REF
POWER-GOOD
Figure 8. Triple-Output Application for Low-Voltage Batteries (MAX1630/MAX1633)
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