MAX1533A Datasheet, PDF (17/38 Pages) Maxim Integrated Products – High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers

High-Efficiency, 5x Output, Main Power-Supply
Controllers for Notebook Computers
5V LDO
OUTPUT
N_H1
L1
D_L1
5.8μH
C1
10μF
D_BST
C_BST
0.1μF
N_L1
3.3V PWM
OUTPUT
C_REF
0.22μF
R_CS1
10mΩ
C_OUT1
220μF
40mΩ
R3
60.4kΩ
R2
100kΩ
R5
60.4kΩ
R4
100kΩ
ON OFF
ON OFF
SECONDARY
OUTPUT
ON OFF
POWER GROUND
ANALOG GROUND
LDO5
IN
DH3 _MAX1533A DH5
BST3 MAX1537A ^BST5
LX3
LX5
DL3
DL5
PGND
GND
CSH3
CSL3
FB3
OVP
REF
ILIM3
CSH5
CSL5
FB5
UVP
SKIP
FSEL
VCC
ILIM5
SHDN
ON3
ON5
PGOOD
PGDLY
LDO3
INA
LDOA
ONA
ADJA
C_IN
(2) 10μF
INPUT (V_IN)
D_BST
C_BST
0.1μF
N_L2
C5
N_H2
22μF
SECONDARY
OUTPUT
D1
D_L2
T1
1:2 TURNS
LP = 6.8μH
R_CS2
10mΩ
C_OUT2
150μF
40mΩ
5V PWM
OUTPUT
REF (300kHz)
C2 ^R1
1μF ^20Ω
C3
10μF
R6
OPEN
R7
0Ω
R8
100kΩ
CONNECT
TO LDO5
POWER-GOOD
3.3V LDO
OUTPUT
MAX1537A ONLY
12V LDO
OUTPUT
C4
10μF
SEE TABLE 1 FOR COMPONENT SPECIFICATIONS
Figure 1. MAX1533A/MAX1537A Standard Application Circuit
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