MAX1531ETJ+ Maxim Integrated Products, MAX1531ETJ+ Datasheet - Page 7

• Manufacturer Part Number: MAX1531ETJ+
• Description: IC PS CTRLR MULTI-OUTPUT 32TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1531ETJ+

• Applications: Five Power Supply Monitor
• Voltage - Supply: 4.5 V ~ 28 V
• Current - Supply: 1.7mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Voltage - Output: 1.25 ~ 16.5 V
• Number Of Outputs: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Input: -
• Lead Free Status / Rohs Status: Details

(Circuit of Figure 1; including R5, R6, and D2; T
-0.1
-0.2
-0.3
-0.4
-0.5
100
90
80
70
60
50
0
STEP-DOWN EFFICIENCY vs. LOAD CURRENT
STEP-DOWN REGULATOR LOAD TRANSIENT
0
0
A: LOAD CURRENT, 1A/div
B: OUTPUT VOLTAGE, 200mV/div, AC-COUPLED
C: INDUCTOR CURRENT, 1A/div
f
SW
= 500kHz
5
300
VL LOAD REGULATION
LOAD CURRENT (mA)
LOAD CURRENT (mA)
10
600
40µs/div
V
_______________________________________________________________________________________
15
IN
= 12V
900
20
V
IN
1200
= 20V
25
MAX1530 toc04
1500
30
0A
3.3V
0A
A
B
C
-0.04
-0.08
-0.12
-0.16
A
= +25°C, unless otherwise noted.)
0
Multiple-Output Power-Supply
0
A: V
B: V
C: V
D: V
Controllers for LCD Monitors
A: LX, 10V/div
B: OUTPUT VOLTAGE, 20 mV/div, AC-COUPLED
C: INDUCTOR CURRENT, 1A/div
L
OUT
LOGIC
SOURCE
, 10V/div
STEP-DOWN LOAD REGULATION
, 5V/div
300
STEP-DOWN REGULATOR
SWITCHING WAVEFORM
, 5V/div
, 20V/div
STARTUP SEQUENCE
LOAD CURRENT (mA)
600
2µs/div
4ms/div
900
Typical Operating Characteristics
E: V
F: V
G: V
1200
GAMMA
GOFF
GON
MAX1530 toc05
MAX1530 toc08
, 40V/div
, 20V/div
, 20V/div
1500
0V
3.3V
0A
A
B
C
D
F
G
E
A
B
C
520
515
510
505
500
495
490
485
480
15
12
9
6
3
0
SWITCHING FREQUENCY vs. LOAD CURRENT
0
0
V
FBL1
A: EN, 2V/div
B: OUTPUT VOLTAGE, 2V/div
C: INDUCTOR CURRENT, 1A/div
= 1.175V
300
STEP-DOWN REGULATOR
2
LR1 BASE CURRENT
vs. DRV1 VOLTAGE
LOAD CURRENT (mA)
DRV1 VOLTAGE (V)
SOFT-START
600
4
1ms/div
900
6
1200
8
MAX1530 toc06
1500
10
0V
0V
0A
7
A
B
C