LT1931 데이터 시트보기 (PDF) - Linear Technology
부품명
상세내역
일치하는 목록
LT1931 Datasheet PDF : 12 Pages
| |||
LT1931/LT1931A
ABSOLUTE AXI U RATI GS
(Note 1)
VIN Voltage .............................................................. 16V
SW Voltage ................................................– 0.4V to 36V
NFB Voltage ............................................................. – 2V
Current Into NFB Pin ............................................ ±1mA
SHDN Voltage .......................................................... 16V
Maximum Junction Temperature .......................... 125°C
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
SW 1
GND 2
NFB 3
5 VIN
4 SHDN
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
TJMAX = 125°C, θJA = 150°C/ W
ORDER PART NUMBER S5 PART MARKING
LT1931ES5
LT1931AES5
LT1931IS5
LT1931AIS5
LTRA
LTSP
LTBZF
LTBZG
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VIN = 3V, VSHDN = VIN, unless otherwise noted. (Note 2)
PARAMETER
Minimum Operating Voltage
Maximum Operating Voltage
Feedback Voltage
CONDITIONS
NFB Pin Bias Current
Quiescent Current
Quiescent Current in Shutdown
Reference Line Regulation
Switching Frequency
VNFB = –1.255V
VSHDN = 2.4V, Not Switching
VSHDN = 0V, VIN = 3V
2.6V ≤ VIN ≤ 16V
Maximum Duty Cycle
Switch Current Limit
(Note 3)
Switch VCESAT
Switch Leakage Current
SHDN Input Voltage, High
ISW = 1A
VSW = 5V
SHDN Input Voltage, Low
SHDN Pin Bias Current
VSHDN = 3V
VSHDN = 0V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT1931E/LT1931AE are guaranteed to meet performance
specifications from 0°C to 70°C. Specifications over the – 40°C to 85°C
LT1931
MIN TYP MAX
LT1931A
MIN TYP MAX
2.45 2.6
2.45 2.6
16
16
– 1.275 – 1.255 – 1.235 –1.275 –1.255 –1.235
● – 1.280
– 1.230 –1.280
– 1.230
●
4
8
8
16
4.2 6
5.8 8
0.01 1
0.01 1
0.01 0.05
0.01 0.05
1 1.2 1.4
● 0.85
1.6
1.8 2.2 2.6
1.6
2.9
● 84 90
75 82
1 1.2 2
1 1.2 2.5
400 600
400 600
0.01 1
0.01 1
2.4
2.4
0.5
0.5
16 32
0 0.1
35 70
0 0.1
UNITS
V
V
V
V
µA
mA
µA
%/V
MHz
MHz
%
A
mV
µA
V
V
µA
µA
operating temperature range are assured by design, characterization and
correlation with statistical process controls. LT1931I/LT1931AI are
guaranteed over the –40°C to 85°C temperature range.
Note 3: Current limit guaranteed by design and/or correlation to static test.
1931fa
2
Share Link: 