MAX1632AEAI Datasheet, PDF (25/29 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 (continued)
INPUT
+6.5V TO +28V
TO +3.3V OUTPUT
*
*
TO +5V OUTPUT
C3
10Ω
C4
ON/OFF
+3.3V OUTPUT (3A)
C1
R1
L1
0.1μF
1N5819
4.7μF ^0.1μF
23 22 6 21
SHDN V+ SYNC VL
12OUT ⁴
V_DD ⁵
D1
D2
25 _BST3
Q1 27 _DH3
BST5 ¹⁸
DH5 ^{16 Q3}
0.1μF _{26 LX3}
24
Q2
DL3
MAX1632A ^LX5
MAX1635A _DL5
PGND
17 ^0.1μF
19
Q4
20
1 _CSH3
CSH5 ¹⁴
0.1μF
4.7μF
+5V ALWAYS ON
+12V AT 120mA
2.2μF
D5
2.2μF
R2
T2
0.1μF 1:2.2
1N5819
+5V OUTPUT (3A)
C2
*
2 _CSL3
CSL5 ¹³
3 _FB3
FB5 ¹²
3V ON/OFF
5V ON/OFF
R1 = R2 = 20mΩ
L1 = 10μH SUMIDA CDRH125-100
T2 = 10μH 1:2.2 TRANSFORMER
TRANSPOWER TECHNOLOGIES TTI-5870
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
28 _RUN/ON3
7 _TIME/ON5
SEQ ¹⁵
REF ⁹
1μ F
RESET ¹¹
SKIP GND
10
8
*VL DIODES AND OUTPUT SCHOTTKY DIODES REQUIRED
FOR THE MAX1632A ONLY (SEE OUTPUT OVERVOLTAGE PROTECTION
AND OUTPUT UNDERVOLTAGE SHUTDOWN PROTECTION SECTIONS).
+2.5V REF
POWER-GOOD
Figure 9. Triple-Output Application for High-Voltage Batteries (MAX1632A/MAX1635A)
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