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LT7200SAVPBF データシート(PDF) 3 Page - Analog Devices

部品番号 LT7200SAVPBF
部品情報  Quad 18V, ±5A Synchronous Monolithic Step-Down Regulator
PDF  35 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
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LT7200SAVPBF データシート(HTML) 3 Page - Analog Devices

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Data Sheet
LT7200S
analog.com
Rev 0
3 of 35
SPECIFICATIONS
Table 1. Electrical Characteristics
(Specifications are at TA = 25°C. VIN = 12V, unless otherwise noted)
PARAMETER
SYMBOL
CONDITIONS/COMMENTS
MIN
TYP
MAX
UNITS
SVIN Operating Voltage
SVIN
-40°C ≤ TJ ≤ 150°C
2.9
18
V
PVIN Operating Voltage
PVIN
1.5
18
V
VOUT Operating Voltage
VOUT
RRT = 100kΩ
0.5
0.9VIN
V
Internal VCC Voltage
VINTVCC
SVIN > 5.5V
4.85
4.93
5.02
V
VIN Quiescent Current (2)
Active, Single Channel
IQ(ACT,1CH)
RRT = 100kΩ, MODE/SYNC = 0V,
VRUN1 = 2V, VRUN2,3,4= 0V
2
3
mA
VIN Quiescent Current (2)
Active, All Channels
IQ(ACT,4CH)
RRT = 100kΩ, MODE/SYNC = 0V,
VRUN1,2,3,4= 2V
6
7
mA
VIN Quiescent Current (2)
Shutdown Mode
IQ(SHDN)
RRT = 100kΩ
VRUN1,2,3,4= 0V
30
38
µA
Feedback Reference
Voltage (3)
VFB
ITH = 1V
-40°C ≤ TJ ≤ 150°C
0.496
0.5
0.504
V
Feedback Voltage Line
and Load Regulation (3)
ΔVFB(LINE+LOAD) -40°C ≤ TJ ≤ 150°C
-0.1
0.07
0.2
%
Feedback Pin Input
Current
IFB
±50
nA
Error Amplifier
Transconductance
Gm(EA)
ITH = 1V
0.9
1.05
1.2
ms
ITH Internal
Compensation
Threshold
VITH-INT
VINTVCC
- 0.3
V
Minimum On-Time
tON(MIN)
-40°C ≤ TJ ≤ 150°C
12
20
ns
Minimum Off-Time
tOFF(MIN)
25
ns
Positive Inductor
Valley Current Limit
ILIM-POS
FB = 0.58V
-40°C ≤ TJ ≤ 150°C
5
6
7
A
Negative Inductor Valley
Current Limit
ILIM-NEG
FB = 0.42V
-40°C ≤ TJ ≤ 150°C
7.9
-6.8
-5.8
A
Current Limit at
Different ITH Voltage
ILIM-ITH
ITH = 1.3V
2.5
3
3.5
A
ITH = 1V
-0.5
0
0.5
ITH = 0.7V
-3.5
-3
-2.5
Top Power NMOS
On-Resistance
RTOP
INTVCC = 5V
37
mΩ
Bottom Power NMOS
On-Resistance
RBOT
INTVCC = 5V
12
mΩ
Top Switch Leakage
ISW(TOP)
VIN = 18V, VSW = 0V
0.05
0.5
µA
Bottom Switch Leakage
ISW(BOTTOM)
VIN = 18V, VSW = 18V
0.1
1.5
µA



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