MAX1533AETJ+ Maxim Integrated Products, MAX1533AETJ+ Datasheet - Page 12

• 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

High-Efficiency, 5x Output, Main Power-Supply
Controllers for Notebook Computers
(MAX1537A circuit of Figure 1, V
12
3.3V
12V
4A
4A
0
0
0
______________________________________________________________________________________
A. I
B. V
C. INDUCTOR CURRENT, 5A/div
D. LX3, 10V/div
SKIP = GND
OUT3
OUT3
3.3V OUTPUT LOAD TRANSIENT
= 0.2A TO 4A, 5A/div
= 3.3V, 100mV/div
5.05V
5.00V
4.95V
(PULSE SKIPPING)
20V
15V
10V
5V
40μs/div
A. INPUT VOLTAGE (V
B. LDO5 OUTPUT VOLTAGE, 50mV/div
ON3 = ON5 = GND, I
LDO5 LINE TRANSIENT
MAX1533/37 toc22
IN
LDO5
20μs/div
IN
= 12V, LDO5 = V
= 7V TO 20V), 5V/div
= 20mA
A
B
C
D
MAX1533/37 toc25
3.3V
A. PGOOD2, 5V/div
B. 3.3V OUTPUT, 3.3V/div
C. LOAD (0 TO 30A), 20A/div
30A
12V
5V
7A
0
0
0
0
0
Typical Operating Characteristics (continued)
CC
A
B
= 5V, SKIP = GND, FSEL = REF, T
OUTPUT OVERLOAD
(UVP ENABLED)
4μs/div
D. INDUCTOR CURRENT, 10A/div
E. LX3, 20V/div
11.96V
120mA
11.90V
10mA
14V
13V
MAX1533/37 toc23
A. I
B. INA, 1V/div
C. LDOA, 50mV/div
INA = VOLTAGE GENERATED BY SECONDARY
TRANSFORMER WINDING
LDOA
AUXILIARY LINEAR-REGULATOR
= 10mA TO 100mA, 100mA/div
A
B
C
D
E
LOAD TRANSIENT
100μs/div
A
100mA
4.95V
= +25°C, unless otherwise noted.)
5.0V
5V
0
0
A. CONTROL SIGNAL, 5V/div
B. I
C. LDO5, 50m/div
ON3 = ON5 = GND
LDO5
MAX1533/37 toc26
= 1mA TO 100mA, 100mA/div
LDO5 LOAD TRANSIENT
A
B
C
20μs/div
MAX1533/37 toc24
A
B
C