LT1310 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT1310 Datasheet PDF : 12 Pages
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LT1310
ABSOLUTE AXI U RATI GS
(Note 1)
SW Voltage .............................................................. 36V
VIN Voltage ............................................................. 18V
SHDN Voltage ......................................................... 18V
SYNC Voltage ........................................................... 5V
FB Voltage ................................................................. 5V
CT Voltage ................................................................. 5V
VC Voltage ................................................................. 2V
PLL-LPF Pin Current ............................................... 1mA
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
FB 1
SHDN 2
PLL-LPF 3
SYNC 4
GND 5
TOP VIEW
10 VC
9 CT
8 VIN
7 SW
6 SW
MSE EXPOSED PAD PACKAGE
10-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 40°C/W
EXPOSED PAD IS GROUND
(MUST BE SOLDERED TO PCB)
ORDER PART
NUMBER
LT1310EMSE
MSE PART MARKING
LTRZ
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.3V, VSHDN = 3.3V, unless otherwise noted. (Note 2)
PARAMETER
Undervoltage Lockout
Maximum Input Voltage
Feedback Voltage
FB Pin Bias Current
Reference Line Regulation
Error Amplifier Transconductance
Error Amplifier Voltage Gain
SW Current Limit
SW Saturation Voltage
SW Maximum Duty Cycle
SW Minimum On Time
VCO Frequency
Frequency Foldback
PLL Lock Range
Supply Current
SW Leakage Current
SHDN Pin Bias Current
SHDN Pin High
SHDN Pin Low
CONDITIONS
VIN = 2.9V to 18V
∆I = 5µA
ISW = 1A
CT = 220pF
CT = 47pF
ISW = 150mA, VC = 0.25V
CT = 220pF, PLL-LPF = High
CT = 220pF, PLL-LPF = High
CT = 220pF, PLL-LPF = Low
CT = 47pF, PLL-LPF = High
CT = 220pF, PLL-LPF = High, FB = 0V
CT = 220pF, Maximum
CT = 220pF, Minimum (Percent Change from Max)
SHDN = High
SHDN = Low
Switch Off, SW = 3.3V
VSHDN = 2.4V
Active Mode
Shutdown Mode
MIN
1.242
q 1.236
1.5
80
78
0.950
q 0.800
0.950
– 40
2.4
TYP
1.255
60
0.01
350
200
2.1
0.240
84
83
70
1.10
500
3.3
200
1.10
– 50
11.5
0.1
35
MAX
2.8
18
1.268
1.268
150
0.05
2.8
0.320
1.25
1.30
630
1.25
15
1
5
65
0.4
UNITS
V
V
V
V
nA
%/V
µA/V
V/V
A
V
%
%
ns
MHz
MHz
kHz
MHz
kHz
MHz
%
mA
µA
µA
µA
V
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT1310E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the – 40°C to 85°C operating
temperature range are assured by design, chacterization and correlation
with statistical process controls.
2
sn1310 1310fs
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