LT1935 Linear Technology, LT1935 Datasheet - Page 2

• Manufacturer Part Number: LT1935
• Description: DC/DC Converter
• Manufacturer: Linear Technology

ABSOLUTE AXI U RATI GS
LT1935
(Note 1)
The
V
PARAMETER
Feedback Voltage
Feedback Voltage Line Regulation
FB Pin Bias Current
Undervoltage Lockout Threshold
Maximum Input Voltage
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch Saturating Voltage
Switch Leakage Current
SHDN Pin Input Current
Operating Supply Current
SHDN Supply Current
SHDN Input High Voltage
SHDN Input Low Voltage
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT1935ES5 is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the – 40°C to 85°C operating
V
SW Voltage ................................................– 0.4V to 40V
FB Voltage ................................................................. 6V
Current Into FB Pin .............................................. ±1mA
SHDN Voltage ......................................................... 16V
Maximum Junction Temperature ......................... 125°C
Operating Ambient Temperature Range
Storage Temperature Range ................. – 65°C to 150°C
Strict adherence to JDEC 020B solder attach and rework
for assemblies containing lead is recommended.
ELECTRICAL CHARACTERISTICS
2
IN
IN
(Note 2) .............................................. – 40°C to 85°C
= 3V, V
●
Voltage .............................................................. 16V
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
SHDN
= V
IN
W
unless otherwise noted. (Note 2)
W W
CONDITIONS
Measured at the FB Pin
2.5V ≤ V
V
(Note 3)
I
V
V
V
V
V
SW
FB
SW
SHDN
SHDN
FB
SHDN
= V
= 1.5V
= 2A
U
= 5V
= 1.8V
= 0V
= 0V
REF
IN
≤ 16V
PACKAGE/ORDER I FOR ATIO
Consult LTC marketing for parts specified with wider operating temperature ranges.
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Current limit guaranteed by design and/or correlation to static test.
GND 2
SW 1
T
FB 3
JMAX
5-LEAD PLASTIC TSOT-23
= 125°C, θ
S5 PACKAGE
TOP VIEW
JA
= 113°C/ W,
●
●
●
●
5 V
4 SHDN
IN
1.240
MIN
1.8
85
1
2
U
1.265
S5 PART MARKING
0.01
0.01
TYP
180
2.1
1.2
3.2
0.1
12
93
14
3
ORDER PART
LT1935ES5
A
NUMBER
W
= 25°C.
LTRX
1.280
MAX
280
2.3
1.4
0.1
0.5
60
16
40
1
1
UNITS
U
MHz
1935f
%/V
mV
mA
nA
µA
µA
µA
µA
%
V
V
V
A
V
V