lt3571 Linear Technology Corporation, lt3571 Datasheet - Page 2

• Manufacturer Part Number: lt3571
• Description: 75v Dc/dc Converter For Apd Bias
• Manufacturer: Linear Technology Corporation

ABSOLUTE MAXIMUM RATINGS
LT3571
(Note 1)
Input Voltage (V
V
MON ..........................................................................12V
SW ............................................................................75V
CTRL, FB, SYNC ..........................................................5V
R
Operating Ambient Temperature Range
Operating Junction Temperature
Storage Temperature Range ...................–65°C to 150°C
ORDER INFORMATION
LEAD FREE FINISH
LT3571EUD#PBF
LT3571IUD#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.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
PARAMETER
Minimum Operating Voltage
Maximum Operating Voltage
Supply Current
Feedback Voltage
Feedback Line Regulation
Current Sense Voltage (V
FB Pin Bias Current
V
V
R
SYNC Resistance to GND
SYNC Input Low
SYNC Input High
ELECTRICAL CHARACTERISTICS
2
temperature range, otherwise specifi cations are at T
REF
REF
T
OUT
T
, V
Voltage
(Note 2) .............................................–40°C to 125°C
(Note 2) .............................................–40°C to 125°C
Pin Voltage
Pin Line Regulation
, MONIN, APD ....................................................75V
REF
...................................................................1.5V
IN
), SHDN ........................................20V
OUT
TAPE AND REEL
LT3571EUD#TRPBF
LT3571IUD#TRPBF
– V
MONIN
)
CONDITIONS
V
V
V
2.7V < V
V
V
I
2.7V < V
V
REF
http://www.linear.com/leadfree/
FB
SHDN
CTRL
OUT
FB
SYNC
= 1.3V, Not Switching
= 0V
PART MARKING*
LDTN
LDTN
= –100μA
= 30V
= 1.25V, V
= 2V
http://www.linear.com/tapeandreel/
= 0V
A
IN
IN
= 25°C, V
< 20V
< 20V
The
OUT
l
IN
= V
denotes the specifi cations which apply over the full operating
= 3V, V
MONIN
PIN CONFIGURATION
SHDN
PACKAGE DESCRIPTION
16-Lead (3mm × 3mm) Plastic QFN
16-Lead (3mm × 3mm) Plastic QFN
= 3V, unless otherwise noted.
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
T
JMAX
MONIN
= 125°C, θ
16-LEAD (3mm 3mm) PLASTIC QFN
V
APD
OUT
NC
1
2
3
4
l
l
l
l
JA
16
5
= 68°C/W, θ
UD PACKAGE
TOP VIEW
15 14 13
6
0.985
1.200
17
MIN
0.97
185
1.5
7
JC
8
= 4.2°C/W (NOTE 2)
12
11
10
9
1.222
0.03
0.03
TYP
200
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
1.7
0.1
30
45
1
1
SHDN
V
GND
R
IN
T
1.015
1.240
MAX
1.03
0.07
0.07
215
100
2.7
2.2
0.5
0.4
20
UNITS
3571f
%/V
%V
mA
mV
kΩ
μA
nA
V
V
V
V
V
V
V
V