LT1912 Linear Technology Corporation, LT1912 Datasheet - Page 2

• Manufacturer Part Number: LT1912
• Description: Step-Down Switching Regulator
• Manufacturer: Linear Technology Corporation

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ABSOLUTE MAXIMUM RATINGS
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
LT1912
(Note 1)
V
BOOST Pin Voltage ...................................................56V
BOOST Pin Above SW Pin .........................................30V
FB, RT, V
BD, SYNC Voltage .....................................................30V
PIN CONFIGURATION
LEAD FREE FINISH
LT1912EDD#PBF
LT1912EMSE#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
temperature range, otherwise specifi cations are at T
noted. (Note 2)
PARAMETER
Minimum Input Voltage
Quiescent Current from V
Quiescent Current from BD
Minimum Bias Voltage (BD Pin)
2
IN
, RUN/SS Voltage .................................................36V
C
Voltage .......................................................5V
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
RUN/SS
BOOST
10-LEAD (3mm × 3mm) PLASTIC DFN
SW
V
IN
BD
IN
JA
TAPE AND REEL
LT1912EDD#TRPBF
LT1912EMSE#TRPBF
1
2
3
4
5
= 45°C/W,
DD PACKAGE
TOP VIEW
11
JC
= 10°C/W
10
9
8
7
6
R
V
FB
N/C
SYNC
C
T
http://www.linear.com/leadfree/
CONDITIONS
V
V
V
V
V
V
RUN/SS
BD
BD
RUN/SS
BD
BD
PART MARKING
LDJT
LTDJS
http://www.linear.com/tapeandreel/
A
= 3V, Not Switching
= 0, Not Switching
= 3V, Not Switching
= 0, Not Switching
= 25°C. V
= 0.2V
= 0.2V
The
●
IN
denotes the specifi cations which apply over the full operating
= 10V, V
Operating Junction Temperature Range (Note 2)
Storage Temperature Range ................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
(MSE Only) ........................................................... 300°C
LT1912E ........................................... –40°C to 125°C
RUN/SS
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead Plastic MSOP
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
= 10V, V
RUN/SS
BOOST
BOOST
SW
V
BD
IN
JA
10-LEAD PLASTIC MSOP
1
2
3
4
5
= 45°C/W,
= 15V, V
MSE PACKAGE
●
●
●
TOP VIEW
11
JC
MIN
BD
= 10°C/W
= 3.3V unless otherwise
10
9
8
7
6
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
0.01
0.01
TYP
450
1.3
0.9
2.7
R
V
FB
N/C
SYNC
3
1
C
T
MAX
600
3.6
0.5
1.7
0.5
1.3
5
3
UNITS
1912f
mA
μA
μA
μA
μA
μA
V
V