MAX1531 Maxim Integrated Products, MAX1531 Datasheet - Page 4

• Manufacturer Part Number: MAX1531
• Description: (MAX1530 / MAX1531) Multiple-Output Power-Supply Controllers for LCD Monitors
• Manufacturer: Maxim Integrated Products

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4
Multiple-Output Power-Supply Controllers for
LCD Monitors
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
4
SOFT-START
Step Size
Period
FET DRIVERS
DH, DL On-Resistance
DH, DL Output Drive Current
LX, BST Leakage Current
POSITIVE LINEAR REGULATOR (LR1)
FBL1 Regulation Voltage
FBL1 Input Bias Current
FBL1 Effective Load Regulation
Error (Transconductance)
FBL1 Line Regulation Error
DRV1 Sink Current
DRV1 Off-Leakage Current
FBL1 Input Common-Mode
Range
Soft-Start Step Size
Soft-Start Period
POSITIVE LINEAR REGULATORS (LR2 AND LR3)
FBL_ Regulation Voltage
FBL_ Input Bias Current
FBL_ Effective Load Regulation
Error (Transconductance)
FBL_ Line Regulation Error
DRV_ Sink Current
DRV_ Off-Leakage Current
FBL_ Input Common-Mode
Range
Soft-Start Step Size
_______________________________________________________________________________________
PARAMETER
IN
= 12V, V
EN
= V
Measured at FB
FREQ = GND
FREQ = VL
Sourcing or sinking, V
V
V
V
V
I
V
V
(Note 2)
Measured at FBL1
FREQ = GND
FREQ = VL
V
V
V
I
V
V
(Note 2)
Measured at FBL_
DRV1
DRV
BST
DRV1
FBL1
DRV1
FBL1
FBL1
DRV
FBL
DRV
FBL_
FBL
SEQ
_ = 100µA, 5.5V < V
_ = 1.5V
_ = 1.5V, V
_ = 5V, I
_ = 5V, I
= V
= 100µA, 5.5V < V
= 1.5V
= 1.175V, V
= 1.5V, V
= 1.175V, V
= 5V, T
= 5V, I
= 5V, I
LX
LINEAR REGULATOR CONTROLLERS
= V
DRV1
DRV1
DRV
DRV
A
IN
DRV1
DRV
= 0°C to +85°C, unless otherwise noted. Typical values are at T
_ = 100µA
_ = 50µA to 1mA
= 28V
DRV_
DRV1
= 100µA
= 100µA to 2mA
_ = 28V
= 28V
CONDITIONS
DH
= 5V
= 5V
IN
IN
or V
< 28V
< 28V
DL
= V
VL
/ 2
1.226
1.226
MIN
-0.1
-0.1
-50
-50
3
2
1024 / f
2048 / f
1024 / f
2048 / f
1.238 / 32
1.238 / 32
1.238 / 32
1.245
1.245
TYP
-1.5
-1.5
0.5
0.1
0.1
10
3
4
OSC
OSC
OSC
OSC
1.264
1.264
A
MAX
+1.5
+1.5
+50
+50
10
20
10
10
-2
-2
= +25°C.)
5
5
UNITS
mV
mA
mV
mA
µA
nA
µA
nA
µA
%
%
Ω
V
A
V
V
V
V
V
V
s
s