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MAX17113 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part # MAX17113
Description  Low-Cost, Multiple-Output Power Supply for LCD TVs
PDF  30 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX17113 Datasheet(HTML) 3 Page - Maxim Integrated Products

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Low-Cost, Multiple-Output
Power Supply for LCD TVs
_______________________________________________________________________________________
3
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
REFERENCE
REF Output Voltage
No external load
1.235
1.250
1.265
V
REF Load Regulation
0 < ILOAD < 50μA
10
mV
REF Sink Current
In regulation
10
μA
REF Undervoltage-Lockout Threshold
Rising edge; 25mV typical hysteresis
1.0
1.2
V
STEP-DOWN REGULATOR
0°C < TA < +85°C
3.25
3.30
3.35
OUT Voltage in Fixed Mode
FB2 = AGND, no load
(Note 1)
TA = +25°C
3.267
3.333
V
0°C < TA < +85°C
1.23
1.25
1.27
FB2 Voltage in Adjustable Mode
VOUT = 2.5V, no load
(Note 1)
TA = +25°C
1.2375
1.2625
V
FB2 Adjustable-Mode
Threshold Voltage
Dual-mode comparator
0.10
0.15
0.20
V
Output-Voltage Adjust Range
Step-down output
1.5
5.0
V
FB2 Fault Trip Level
Falling edge
0.94
1.00
1.06
V
FB2 Input Bias Current
VFB2 = 1.5V, TA = +25°C
50
125
200
nA
DC Load Regulation
0.4A < ILOAD < 2A
0.5
%
DC Line Regulation
No load, 10.8V < VIN2 < 13.2V
0.05
%/V
LX2-to-IN2 nMOS Switch
On-Resistance
100
200
m
Ω
LX2-to-CPGND nMOS Switch
On-Resistance
712
25
Ω
BST-to-VL pMOS Switch
On-Resistance
712
25
Ω
Low-Frequency Operation
OUT Threshold
Step-down only
0.8
V
FSEL = VIN
100
Low-Frequency Operation
Switching Frequency
FSEL = AGND
75
kHz
LX2 Positive Current Limit
2.50
3
3.50
A
Soft-Start Period
3.3
ms
Soft-Start Step Size
VREF/
128
V
Maximum Duty Factor
65
75
90
%
POWER-GOOD
FB2 Power-Good Threshold
FB2 rising
0.94
1.00
1.06
V
FB2 Threshold Hysteresis
12
mV
PGOOD Output Low Voltage
IPGOOD = 1mA
0.1
0.3
V
PGOOD Leakage Current
VPGOOD = 3V, TA = +25°C
1
μA
CRST Charge Current
VCRST = 1V
0.8
1.0
1.2
μA
CRST Voltage Threshold
1.2
1.25
1.3
V
CRST Pulldown Resistance
VCRST = 1V
150
300
Ω
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, VVIN = VIN2 = 12V, TA = 0°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.)



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