MAX1534ETE+ Maxim Integrated Products, MAX1534ETE+ Datasheet - Page 5

• 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

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
Note 1: The output voltage at light loads has a DC regulation level higher than the error comparator threshold by half the ripple volt-
Note 2: The dropout voltage is defined as V
Note 3: OUT1, OUT2 DC set point, FB3 set point at the DC trip threshold of buck regulator.
Note 4: Specifications to -40°C are guaranteed by design, not production tested.
(Circuit of Figure 1, V
INPUTS AND OUTPUTS
SHDN Input Trip Level
PRESET, ILIM Logic Levels
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
0
age.
2.5V.
ILIM = IN
PARAMETER
50
vs. LOAD CURRENT, CIRCUIT 1
V
100 150 200 250
IN
BUCK OUTPUT VOLTAGE
= 20V
89
87
85
83
81
79
77
75
High-Efficiency, Triple-Output, Keep-Alive
0.1
BUCK EFFICIENCY vs. LOAD CURRENT
IN
_______________________________________________________________________________________
I
IN
OUT3
= 12V, ILIM = GND, PRESET = GND, T
= +12V, PRESET = GND, T
V
IN
(mA)
Power Supply for Notebook Computers
(t
L = 22µH
= 12V
ON
300 350 400 450 500
CIRCUIT 1, V
V
1
IN
L = 10µH
LIMITED)
= 6V
I
OUT3
10
(mA)
SYMBOL
IN
= 12V
L = 15µH
100
LDOIN
ILIM = IN
100
95
90
85
80
75
70
65
60
55
50
Rising trip level, 100mV hysteresis
Low
High
- V
1000
A
0.1
= +25°C, unless otherwise noted.)
OUT_
vs. LOAD CURRENT, CIRCUIT 1
V
IN
when V
= 6V
1
BUCK EFFICIENCY
V
A
IN
= -40°C to +85°C, unless otherwise noted.) (Note 4)
= 20V
CONDITIONS
LDOIN
I
OUT3
V
10
IN
(mA)
Typical Operating Characteristics
= 12V
= V
OUT_(NOM)
100
ILIM = IN
200
180
160
140
120
100
80
60
40
20
0
6
1000
. Specification only applies when V
I
vs. V
OUT3
10
SWITCHING FREQUENCY
= 500mA
IN
I
OUT3
100
, CIRCUIT 1, ILIM = IN
I
95
90
85
80
75
70
65
60
55
50
OUT3
= 250mA
14
0.1
MIN
0.96
2.2
= 100mA
V
IN
(V)
vs. LOAD CURRENT, CIRCUIT 2
18
V
V
1
IN
IN
TYP
BUCK EFFICIENCY
= 20V
= 7V
I
I
OUT3
OUT3
22
I
= 10mA
= 50mA
OUT3
V
IN
10
= 12V
(mA)
MAX
1.04
26
0.5
100
OUT_
ILIM = GND
UNITS
≥
V
V
V
1000
5