Voltage .......................................................5V
PG, BD Voltage .........................................................25V
PIN CONFIGURATION
TOP VIEW
BD
BOOST
SW
V
IN
RUN/SS
1
2
3
4
5
11
10 RT
9 V
C
8 FB
7 PG
6 SYNC
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
θ
JA
= 45°C/W,
θ
JC
= 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT1913EDD#PBF
LT1913IDD#PBF
TAPE AND REEL
LT1913EDD#TRPBF
LT1913IDD#TRPBF
PART MARKING*
LDJW
LDJW
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
PARAMETER
Minimum Input Voltage
Quiescent Current from V
IN
The
●
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 10V, V
RUN/SS
= 10V, V
BOOST
= 15V, V
BD
= 3.3V unless otherwise
noted. (Note 2)
CONDITIONS
●
V
RUN/SS
= 0.2V
V
BD
= 3V, Not Switching
V
BD
= 0, Not Switching
●
Quiescent Current from BD
V
RUN/SS
= 0.2V
V
BD
= 3V, Not Switching
V
BD
= 0, Not Switching
●
Minimum Bias Voltage (BD Pin)
2
U
W W
W
(Note 1)
SYNC Voltage ............................................................20V
Operating Junction Temperature Range (Note 2)
LT1913E ............................................. –40°C to 125°C
LT1913I .............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
MIN
TYP
3
0.01
0.45
1.3
0.01
0.9
1
2.7
MAX
3.6
0.5
1.2
2.3
0.5
1.8
10
3
UNITS
V
μA
mA
mA
μA
mA
μA
V
1913f
LT1913
ELECTRICAL CHARACTERISTICS
PARAMETER
Feedback Voltage
●
The
●
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 10V, V
RUN/SS
= 10V, V
BOOST
= 15V, V
BD
= 3.3V unless otherwise
noted. (Note 2)
CONDITIONS
MIN
780
775
TYP
790
790
10
0.002
525
2000
60
60
5.3
2.0
R
T
= 8.66k
R
T
= 29.4k
R
T
= 187k
●
MAX
800
805
40
0.01
UNITS
mV
mV
nA
%/V
μMho
μA
μA
A/V
V
FB Pin Bias Current (Note 3)
FB Voltage Line Regulation
Error Amp g
m
Error Amp Gain
V
C
Source Current
V
C
Sink Current
V
C
Pin to Switch Current Gain
V
C
Clamp Voltage
Switching Frequency
V
FB
= 0.8V, V
C
= 0.4V
4V < V
IN
< 25V
●
2.2
1.0
200
4.6
2.45
1.1
230
60
5.4
335
0.02
2.7
1.25
260
150
6.0
2
2.0
60
8
2.5
MHz
MHz
kHz
nS
A
mV
μA
V
mA
μA
V
V
mV
mV
Minimum Switch Off-Time
Switch Current Limit
Switch V
CESAT
Boost Schottky Reverse Leakage
Minimum Boost Voltage (Note 4)
BOOST Pin Current
RUN/SS Pin Current
RUN/SS Input Voltage High
RUN/SS Input Voltage Low
PG Threshold Offset from Feedback Voltage
PG Hysteresis
PG Leakage
PG Sink Current
SYNC Low Threshold
SYNC High Threshold
SYNC Pin Bias Current
V
SYNC
= 0V
V
PG
= 5V
V
PG
= 0.4V
V
FB
Rising
I
SW
= 1A
V
RUN/SS
= 2.5V
Duty Cycle = 5%
I
SW
= 3.5A
V
SW
= 10V, V
BD
= 0V
●
1.5
35
5
0.2
65
10
0.1
1
μA
μA
V
●
200
0.5
800
0.8
0.1
V
μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
The LT1913E is guaranteed to meet performance specifications
from 0°C to 125°C. Specifications over the –40°C to 125°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LT1913I specifications are
guaranteed over the –40°C to 125°C temperature range.
Note 3:
Bias current flows out of the FB pin.
Note 4:
This is the minimum voltage across the boost capacitor needed to
FPGA/CPLD
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