lt3503edcb-trpbf Linear Technology Corporation, lt3503edcb-trpbf Datasheet - Page 2

• Manufacturer Part Number: lt3503edcb-trpbf
• Description: 1a, 2.2mhz Step-down Switching Regulator In 2mm X 3mm Dfn
• Manufacturer: Linear Technology Corporation

ABSOLUTE AXI U RATI GS
(Note 1)
The
V
LT3503
Input Voltage (V
BOOST Pin Voltage .................................................. 40V
BOOST Pin Above SW Pin ....................................... 20V
SHDN Pin ................................................................ 20V
FB Voltage ................................................................. 6V
Operating Temperature Range (Note 2) ... –40°C to 85°C
Maximum Junction Temperature .......................... 125°C
Storage Temperature Range ................. – 65°C to 150°C
ELECTRICAL CHARACTERISTICS
PARAMETER
V
Undervoltage Lockout
Feedback Voltage
FB Pin Bias Current
Quiescent Current
Quiescent Current in Shutdown
Reference Line Regulation
Switching Frequency
Maximum Duty Cycle
2
IN
IN
Operating Range
= 12V, V
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
BOOST
= 17V, unless otherwise noted. (Note 2)
IN
W
) .................................................. 20V
W W
CONDITIONS
V
Not Switching
V
V
V
V
U
FB
SHDN
IN
FB
FB
= 5V to 20V
= Measured V
= 0.7V
= 0V
= 0V
REF
(Note 4)
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Order Options Tape and Reel: Add #TR Lead Free: Add #PBF
Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
ORDER PART NUMBER
LT3503EDCB
EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB
BOOST
GND
FB
6-LEAD (2mm 3mm) PLASTIC DFN
1
2
http://www.linear.com/leadfree/
3
T
JMAX
●
●
●
= 125°C, θ
DCB PACKAGE
TOP VIEW
MIN
765
3.6
3.0
2.0
76
7
JA
= 64°C/ W
U
DCB PART MARKING
0.007
0.01
TYP
780
3.4
1.9
2.2
50
36
81
6
5
4
SHDN
V
SW
IN
LCGW
W
A
MAX
= 25°C.
795
150
3.6
2.6
2.4
20
2
UNITS
U
MHz
%/V
3503f
kHz
mV
mA
nA
µA
%
V
V