MAX1534ETE+ Maxim Integrated Products, MAX1534ETE+ Datasheet - Page 6

• Manufacturer Part Number: MAX1534ETE+
• Description: IC PWR SUPPLY CONTROLLER 16TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1534ETE+

• Applications: Power Supply Controller
• Voltage - Input: 4.5 ~ 24 V
• Current - Supply: 15µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-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, Triple-Output, Keep-Alive
Power Supply for Notebook Computers
(Circuit of Figure 1, V
6
_______________________________________________________________________________________
200
180
160
140
120
100
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
80
60
40
20
15V
10V
0
1A
0
vs. LOAD CURRENT, CIRCUIT 1, ILIM = IN
0
6
V
IN
IN
50
= 10V TO 15V, I
vs. V
= +12V, PRESET = GND, T
100 150 200
10
SWITCHING FREQUENCY
PEAK SWITCH CURRENT
L = 10µH
IN
L = 15µH
LINE TRANSIENT
, CIRCUIT 1, ILIM = IN
14
I
OUT3
OUT3
100µs/div
V
V
IN
250 300 350
IN
= 300mA
(mA)
(V)
= 20V
V
18
IN
= 12V
I
OUT3
L = 22µH
V
400
IN
22
= 300mA
MAX1534 toc10
= 7V
450
Typical Operating Characteristics (continued)
A
500
26
= +25°C, unless otherwise noted.)
V
5V/div
V
200mV/div
AC-COUPLED
I
500mA/div
LX
IN
OUT3
500mA
140
120
100
10V
10V
80
60
40
20
1A
5V
1A
0
0
0
0
0
6
V
V
IN
IN
SHDN = IN
V
TO V
= 5.2V TO 10V, I
= 12V, I
LINE TRANSIENT NEAR DROPOUT
OUT3
vs. V
NO-LOAD SUPPLY CURRENT
LDOIN
NOT CONNECTED
10
BUCK LOAD TRANSIENT
OUT3
IN
, CIRCUIT 1, ILIM = GND
= 100mA TO 450mA
14
OUT3
100µs/div
40µs/div
SHDN = IN
V
IN
= 300mA
(V)
SHDN = GND
18
22
MAX1534 toc11
MAX1534 toc09
26
V
5V/div
I
500mA/div
V
200mV/div
AC-COUPLED
I
1A/div
I
500mA/div
V
200mV/div
AC-COUPLED
V
10V/div
LX
OUT3
LX
IN
OUT3
OUT3
LX