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3513 Datasheet(PDF) 3 Page - Linear Technology

Part # 3513
Description  2MHz High Current 5-Output Regulator for TFT-LCD Panels
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

3513 Datasheet(HTML) 3 Page - Linear Technology

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LT3513
3
3513fa
ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
FB Threshold Offset to Begin CT Charge
(Note 3)
90
125
160
mV
CT Pin Current Source
All FB Pins = 1.5V
16
20
25
μA
CT Threshold to Power VON
All FB Pins = 1.5V
1
1.1
1.2
V
VON Switch Drop
VON Current = 30mA
200
400
mV
Maximum VON Current
VE3 = 30V
l
30
50
mA
VON_CLK Input Voltage High
1.5
V
VON_CLK Input Voltage Low
0.3
V
VONSINK Voltage On
VONSINK Current = 1μA
●
1.2
V
Master Oscillator Frequency
●
1.90
1.80
2
2.12
2.22
MHz
MHz
Foldback Switching Frequency
All FB = 0V
200
kHz
UVLO Pin Threshold
UVLO Pin Voltage Rising
1.25
V
UVLO Pin Hysteresis Current
VUVLO = 1V
3.4
3.9
4.4
μA
PGOOD Threshold Offset
90
125
160
mV
PGOOD Sink Current
PGOOD Connected to 40V Through 100k
4
mA
PGOOD Pin Leakage
VPGOOD = 40V
1
μA
Switch 1 (2.2A Buck)
FB1 Voltage
●
1.215
1.205
1.235
1.255
1.265
V
V
FB1 Voltage Line Regulation
4.5V < VIN < 32V
0.01
0.03
%/V
FB1 Pin Bias Current
(Note 4)
●
30
200
nA
Error Amplifier 1 Voltage Gain
250
V/V
Error Amplifier 1 Transconductance
ΔI = 10μA
220
μmhos
Maximum Duty Cycle
●
75
85
%
Switch 1 Current Limit
Duty Cycle = 35% (Note 5)
2.2
3
3.5
A
Switch 1 VCESAT
ISW = 1.5A
430
mV
Switch 1 Leakage Current
FB1 = 1.5V
0.1
10
μA
Minimum BOOST Voltage Above SW1 Pin
ISW = 1.5A (Note 6)
1.8
2.5
V
BOOST Pin Current
ISW = 1.5A
30
50
mA
BOOST Schottky Diode Drop
I = 170mA
700
mV
Switch 2 (1.5A BOOST)
FB2 Voltage
●
1.20
1.19
1.22
1.24
1.25
V
V
FB2 Voltage Line Regulation
4.5V < VIN < 32V
0.01
0.03
%/V
FB2 Pin Bias Current
(Note 4)
●
30
200
nA
Error Amplifier 2 Voltage Gain
250
V/V
Error Amplifier 2 Transconductance
ΔI = 10μA
220
μmhos
Switch 2 Current Limit
1.5
1.85
2.3
A
Switch 2 VCESAT
ISW2 = 1.2A
360
mV
Switch 2 Leakage Current
FB2 = 1.5V
0.1
1
μA
BIAS Pin Current Due to SW2
ISW2 = 1.2A
45
mA
Maximum Duty Cycle (SW2)
●
75
90
%
The
l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, BIAS = 3V, unless otherwise noted.



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