LT1507 データシートの表示（PDF） - Linear Technology
部品番号
コンポーネント説明
メーカー
LT1507 Datasheet PDF : 20 Pages
| |||
LT1507
ABSOLUTE MAXIMUM RATINGS
Input Voltage ........................................................... 16V
Boost Pin Voltage .................................................... 25V
Shutdown Pin Voltage ............................................... 7V
FB Pin Voltage (Adjustable Part) ............................. 3.5V
FB Pin Current (Adjustable Part) ............................. 1mA
Sense Voltage (Fixed 3.3V Part) ................................ 5V
Sync Pin Voltage ....................................................... 7V
Operating Ambient Temperature Range
LT1507C .................................................. 0°C to 70°C
LT1507I .............................................. – 40°C to 85°C
Max Operating Junction Temperature................... 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
TOP VIEW
BOOST 1
VIN 2
VSW 3
SHDN 4
8 VC
7 FB/SENSE
6 GND
5 SYNC
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 80°C/W TO 120°C/ W (N)
TJMAX = 125°C, θJA = 120°C/W TO 170°C/ W (S)
DEPENDING ON PC BOARD LAYOUT
ORDER PART
NUMBER
LT1507CN8
LT1507CN8-3.3
LT1507CS8
LT1507CS8-3.3
LT1507IN8
LT1507IN8-3.3
LT1507IS8
LT1507IS8-3.3
S8 PART MARKING
1507 1507I
15073 1507I3
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
TJ = 25°C, VIN = 5V, VC = 1.5V, boost open, switch open unless otherwise specified.
PARAMETER
CONDITIONS
MIN
Reference Voltage (Adjustable)
All Conditions
2.39
q 2.36
Sense Voltage (3.3V)
All Conditions
3.25
q 3.23
Sense Pin Resistance
q 4.0
Reference Voltage Line Regulation
4.3V ≤ VIN ≤ 15V
q
FB Input Bias Current
q
Error Amplifier Voltage Gain (Note 8)
(Note 1)
150
Error Amplifier Transconductance (Note 8) ∆I(VC) = ±10µA
1500
q 1100
VC Pin to Switch Current
Transconductance
Error Amplifier Source Current
Error Amplifier Sink Current
VC Pin Switching Threshold
VC Pin High Clamp
Switch Current Limit
Switch On Resistance (Note 6)
VFB = 2.1V or VSENSE = 2.9V
VFB = 2.7V or VSENSE = 3.7V
Duty Cycle = 0
q 150
VFB = 2.1V or VSENSE = 2.9V
VC Open, VFB = 2.1V or VSENSE = 2.9V DC ≤ 50% q 1.50
VIN ≥ 5V, VBOOST = VIN + 5V
DC = 80% q 1.35
ISW = 1.5A, VBOOST = VIN + 5V
q
Maximum Switch Duty Cycle
VFB = 2.1V or VSENSE = 2.9V
90
q 86
TYP
MAX
UNITS
2.42
2.45
V
2.48
V
3.3
3.35
V
3.37
V
6.6
9.5
kΩ
0.01
0.03
%/V
0.5
2
µA
400
2000
2700
µmho
3000
µmho
2
A/V
225
320
µA
2
mA
0.9
V
2.1
V
2
3
A
3
A
0.3
0.4
Ω
0.5
Ω
93
%
93
%
2
Share Link: 