LT1766/LT1766-5
3
1766fc
ELECTRICAL CHARACTERISTICS
The l denotes specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T
J
= 25°C.
V
IN
= 15V, VC = 1.5V, SHDN = 1V, BOOST open circuit, SW open circuit, unless otherwise noted.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Reference Voltage (V
REF
) (LT1766) 5.5V ≤ V
IN
≤ 60V
V
OL
+ 0.2 ≤ V
C
≤ V
OH
– 0.2
l
1.204
1.195
1.219 1.234
1.243
V
V
SENSE Voltage (LT1766-5) 5.5V ≤ V
IN
≤ 60V
V
OL
+ 0.2V ≤ V
C
≤ V
OH
– 0.2V
l
4.94
4.90
5 5.06
5.10
V
V
SENSE Pin Resistance (LT1766-5) 9.5 13.8 19 kΩ
FB Input Bias Current (LT1766)
l
–0.5 –1.5 μA
Error Amp Voltage Gain (Notes 2, 9) 200 400 V/V
Error Amp g
m
dl (V
C
) = ±10μA (Note 9)
l
1500
1000
2000 3000
4200
μMho
μMho
V
C
to Switch g
m
1.7 A/V
EA Source Current FB = 1V or V
SENSE
= 4.1V
l
125 225 400 μA
EA Sink Current FB = 1.4V or V
SENSE
= 5.7V
l
100 225 450 μA
V
C
Switching Threshold Duty Cycle = 0 0.9 V
V
C
High Clamp SHDN = 1V 2.1 V
Switch Current Limit V
C
Open, Boost = V
IN
+ 5V, FB = 1V or V
SENSE
= 4.1V
l
1.5 2 3 A
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT1766EFE#PBF LT1766EFE#TRPBF 1766EFE 16-Lead Plastic TSSOP 0°C to 125°C
LT1766IFE#PBF LT1766IFE#TRPBF 1766IFE 16-Lead Plastic TSSOP –40°C to 125°C
LT1766HFE#PBF LT1766HFE#TRPBF 1766HFE 16-Lead Plastic TSSOP –40°C to 140°C
LT1766EFE-5#PBF LT1766EFE-5#TRPBF 1766EFE-5 16-Lead Plastic TSSOP 0°C to 125°C
LT1766IFE-5#PBF LT1766IFE-5#TRPBF 1766IFE-5 16-Lead Plastic TSSOP –40°C to 125°C
LT1766EGN#PBF LT1766EGN#TRPBF 1766 16-Lead Plastic SSOP 0°C to 125°C
LT1766IGN#PBF LT1766IGN#TRPBF 1766I 16-Lead Plastic SSOP –40°C to 125°C
LT1766EGN-5#PBF LT1766EGN-5#TRPBF 17665 16-Lead Plastic SSOP 0°C to 125°C
LT1766IGN-5#PBF LT1766IGN-5#TRPBF 1766I5 16-Lead Plastic SSOP –40°C to 125°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT1766EFE LT1766EFE#TR 1766EFE 16-Lead Plastic TSSOP 0°C to 125°C
LT1766IFE LT1766IFE#TR 1766IFE 16-Lead Plastic TSSOP –40°C to 85°C
LT1766HFE LT1766HFE#TR 1766HFE 16-Lead Plastic TSSOP –40°C to 140°C
LT1766EFE-5 LT1766EFE-5#TR 1766EFE-5 16-Lead Plastic TSSOP 0°C to 125°C
LT1766IFE-5 LT1766IFE-5#TR 1766IFE-5 16-Lead Plastic TSSOP –40°C to 125°C
LT1766EGN LT1766EGN#TR 1766 16-Lead Plastic SSOP 0°C to 125°C
LT1766IGN LT1766IGN#TR 1766I 16-Lead Plastic SSOP –40°C to 125°C
LT1766EGN-5 LT1766EGN-5#TR 17665 16-Lead Plastic SSOP 0°C to 125°C
LT1766IGN-5 LT1766IGN-5#TR 1766I5 16-Lead Plastic SSOP –40°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
(LT1766E/LT1766I Grade)