LT3682 LINER [Linear Technology], LT3682 Datasheet - Page 2

• Manufacturer Part Number: LT3682
• Description: 1A Micropower Step-Down
• Manufacturer: LINER [Linear Technology]

ABSOLUTE MAXIMUM RATINGS
LT3682
(Note 1)
V
BOOST Pin Voltage …………………………..……. 50V
BOOST Pin Above SW Pin …………………..…… ..30V
FB, R
SYNC …………………………….………….……. 20V
BD and PG Voltage ..…….………………..……….. 30V
Operating Junction Temperature Range (Notes 3 and 6)
Storage Temperature Range ………….. −65°C to 150°C
ORDER INFORMATION
LEAD FREE FINISH
LT3682EDD#PBF
LT3682IDD#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
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:
ELECTRICAL CHARACTERISTICS
PARAMETER
Minimum Operating Voltage
V
Quiescent Current from V
Quiescent Current from BD Pin
Minimum BD Pin Voltage
Feedback Voltage
FB Pin Bias Current (Note 4)
FB Voltage Line Regulation
Error Amp g
Error Amp Voltage Gain
2
range, otherwise specifi cations are at T
IN
IN
LT3682E ……………….………….. . −40°C to 125°C
LT3682I ……………………………. −40°C to 125°C
Overvoltage Lockout
, RUN/SS Voltage (Note 2) …….……………. ....60V
T
, V
C
m
Voltage ......................................................5V
IN
TAPE AND REEL
LT3682EDD#TRPBF
LT3682IDD#TRPBF
A
= 25°C, V
http://www.linear.com/leadfree/
CONDITIONS
V
V
V
V
V
V
V
V
FB Pin Voltage = 800mV
3.6V < V
I
VC
BD
BD
RUN/SS
RUN/SS
RUN/SS
RUN/SS
RUN/SS
RUN/SS
PART MARKING*
LFDW
LFDW
= ±1.5μA
= 3.3V
< 3.0V
IN
http://www.linear.com/tapeandreel/
= 10V, V
= 0.2V
= 10V, V
= 10V, V
= 0.2V
= 10V, V
= 10V, V
IN
< 36V
The
l
BD
BD
BD
BD
RUN
denotes specifi cations which apply over the full operating temperature
= 3.3V, Not Switching
= 0V, Not Switching
= 3.3V, Not Switching
= 0V, Not Switching
/SS = 10V, V
PIN CONFIGURATION
PACKAGE DESCRIPTION
12-Lead (3mm × 3mm) Plastic DFN
12-Lead (3mm × 3mm) Plastic DFN
BD
EXPOSED PAD (PIN 13) IS PGND, MUST BE SOLDERED TO PCB
= 3.3V unless otherwise noted. (Note 3)
BOOST 6
12-LEAD (3mm 3mm) PLASTIC DFN
GND
PG
BD
V
FB
C
1
2
3
4
5
l
l
l
l
l
l
l
DD PACKAGE
θ
TOP VIEW
JA
= 43°C/W
13
MIN
792
780
36
12
11
10
9
8
7
0.001
1300
0.01
0.01
TYP
800
800
430
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
3.4
3.4
2.8
39
35
90
55
V
SYNC
R
RUN/SS
SW
DA
0
5
IN
T
0.005
MAX
160
100
808
812
3.6
4.3
0.5
0.5
41
60
80
5
3
UNITS
3682f
%/V
mV
mV
V/V
μA
μA
μA
μA
μA
μA
nA
μS
V
V
V
V