MAX1533AETJ+ Maxim Integrated Products, MAX1533AETJ+ Datasheet - Page 17

• Manufacturer Part Number: MAX1533AETJ+
• Description: IC POWER SUPPLY CONTROLER 32TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1533AETJ+

• Applications: Power Supply Controller
• Voltage - Input: 4.5 ~ 26 V
• Current - Supply: 15µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 1. MAX1533A/MAX1537A Standard Application Circuit
High-Efficiency, 5x Output, Main Power-Supply
POWER GROUND
ANALOG GROUND
3.3V PWM
OUTPUT
OUTPUT
5V LDO
5.8μH
0.22μF
C
______________________________________________________________________________________
L1
REF
60.4kΩ
60.4kΩ
R5
R3
R
10mΩ
D
C
220μF
40mΩ
CS1
N
L1
OUT1
SECONDARY
H1
ON OFF
ON OFF
ON OFF
Controllers for Notebook Computers
OUTPUT
R2
100kΩ
10μF
N
C1
L1
100kΩ
0.1μF
C
D
BST
BST
R4
DH3
LX3
DL3
LDO5
BST3
CSH3
CSL3
FB3
OVP
REF
ILIM3
ILIM5
SHDN
ON3
ON5
INA
ONA
MAX1533A
MAX1537A
SEE TABLE 1 FOR COMPONENT SPECIFICATIONS
PGOOD
PGDLY
PGND
CSH5
LDOA
LDO3
CSL5
ADJA
BST5
FSEL
SKIP
GND
VCC
DH5
UVP
DL5
LX5
FB5
IN
REF (300kHz)
C
0.1μF
D
R6
OPEN
C2
1μF
C3
10μF
BST
BST
N
0Ω
R7
L2
20Ω
R1
N
H2
D
R8
100kΩ
C4
10μF
L2
150μF
40mΩ
C
10mΩ
OUT2
R
C
(2) 10μF
CS2
MAX1537A ONLY
IN
22μF
C5
CONNECT
TO LDO5
POWER-GOOD
3.3V LDO
OUTPUT
12V LDO
OUTPUT
D1
T1
1:2 TURNS
LP = 6.8μH
SECONDARY
OUTPUT
5V PWM
OUTPUT
INPUT (V
IN
)
17