1506I Ver la hoja de datos (PDF) - Linear Technology
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1506I Datasheet PDF : 24 Pages
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LT1506
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Voltage .......................................................... 16V
BOOST Pin Above Input Voltage ............................. 15V
SHDN 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 Junction Temperature Range
LT1506C ............................................... 0°C to 125° C
LT1506I ........................................... – 40°C to 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
PACKAGE/ORDER INFORMATION
FRONT VIEW
7
FB OR SENSE*
6
BOOST
TAB
5
VIN
IS
4
GND
GND
3
VSW
2
SYNC OR SHDN*
1
VC
R PACKAGE
7-LEAD PLASTIC DD PAK
TJMAX = 125°C, θJA = 30°C/W
WITH PACKAGE SOLDERED TO 0.5 SQUARE INCH
COPPER AREA OVER BACKSIDE GROUND PLANE OR
INTERNAL POWER PLANE. θJA CAN VARY FROM 20°C/W
TO > 40°C/W DEPENDING ON MOUNTING TECHNIQUES
ORDER PART
NUMBER
LT1506CR
LT1506CR-3.3
LT1506CR-SYNC
LT1506CR-3.3 SYNC
LT1506IR
LT1506IR-3.3
LT1506IR-SYNC
LT1506IR-3.3 SYNC
TOP VIEW
VIN 1
BOOST 2
FB OR
SENSE*
3
GND** 4
8 VSW
7 SYNC
6 SHDN
5 VC
S8 PACKAGE
8-LEAD PLASTIC SO
θJA = 80°C/ W
**WITH FUSED (GND) GROUND PIN
CONNECTED TO GROUND PLANE OR
LARGE LANDS
ORDER PART
NUMBER
LT1506CS8
LT1506CS8-3.3
LT1506IS8
LT1506IS8-3.3
S8 PART MARKING
1506 1506I
150633 506I33
*Default is the adjustable output voltage device with FB pin and shutdown function. Option -3.3 replaces FB with SENSE pin for fixed 3.3V output
applications. -SYNC replaces SHDN with SYNC pin for applications requiring synchronization. Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
TJ = 25°C, VIN = 5V, VC = 1.5V, Boost = VIN + 5V, switch open, unless otherwise noted.
PARAMETER
Feedback Voltage (Adjustable)
Sense Voltage (Fixed 3.3V)
SENSE Pin Resistance
Reference Voltage Line Regulation
Feedback Input Bias Current
Error Amplifier Voltage Gain
Error Amplifier Transconductance
CONDITIONS
All Conditions
All Conditions
4.3V ≤ VIN ≤ 15V
(Notes 2, 8)
∆I (VC) = ±10µA (Note 8)
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
Slope Compensation
VFB = 2.1V or VSENSE = 2.9V
VFB = 2.7V or VSENSE = 3.7V
Duty Cycle = 0
VC Open, VFB = 2.1V or VSENSE = 2.9V, DC ≤ 50%
DC = 80%
2
MIN TYP MAX
2.39 2.42 2.45
q 2.36
2.48
3.25 3.3 3.35
q 3.23
3.37
4 6.6 9.5
0.01 0.03
q
0.5 2
200 400
1500 2000 2700
q 1000
3100
5.3
q 140 225 320
q 140 225 320
0.9
2.1
q 4.5
6
8.5
0.8
UNITS
V
V
V
V
kΩ
%/ V
µA
µMho
µMho
A/ V
µA
µA
V
V
A
A
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