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LT3905EUD#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
LT3905
16
3905fa
For more information www.linear.com/LT3905
package DescripTion
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
3.00 ±0.10
(4 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
1.45 ±0.05
(4 SIDES)
NOTE:
1. DRAWING CONFORMS TO JEDEC PACKAGE OUTLINE MO-220 VARIATION (WEED-2)
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON THE TOP AND BOTTOM OF PACKAGE
PIN 1
TOP MARK
(NOTE 6)
0.40 ±0.10
BOTTOM VIEW—EXPOSED PAD
1.45 ± 0.10
(4-SIDES)
0.75 ±0.05
R = 0.115
TYP
0.25 ±0.05
1
PIN 1 NOTCH R = 0.20 TYP
OR 0.25 × 45° CHAMFER
15 16
2
0.50 BSC
0.200 REF
2.10 ±0.05
3.50
±0.05
0.70 ±0.05
0.00 – 0.05
(UD16) QFN 0904
0.25 ±0.05
0.50 BSC
PACKAGE OUTLINE
UD Package
16-Lead Plastic QFN (3mm × 3mm)
(Reference LTC DWG # 05-08-1691 Rev Ø)
LT3905
17
3905fa
For more information www.linear.com/LT3905
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
revision hisTory
REV DATE DESCRIPTION PAGE NUMBER
A 08/14 Clarified Description
Clarified Block Diagram
Clarified Applications Information
Clarified APD Voltage Adjustment graph
1
8
12
15
LT3905
18
3905fa
For more information www.linear.com/LT3905
LINEAR TECHNOLOGY CORPORATION 2013
LT 0814 REV A • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LT3905
relaTeD parTs
Typical applicaTion
PART NUMBER DESCRIPTION COMMENTS
LT3482 0.3A (I
SW
), 650kHz/1.1MHz Step-Up DC/DC Converter
with APD Current Monitor
V
IN
: 2.5V to 16V, V
OUT1(MAX)
= 48V, V
OUT2(MAX)
= 90V, I
Q
= 3.3mA, I
SD
< 1µA,
3mm × 3mm QFN Package
LT3571 0.37A (I
SW
), 75V DC/DC Converter for APD Bias
V
IN
: 2.7V to 20V, V
OUT(MAX)
= 75V, I
Q
= 1.7mA, I
SD
< 1µA, 3mm × 3mm QFN
Package
Wide Output Range Constant Current APD Driver
L1
10µH
C1
1µF
R7
100k
R6
100k
V
IN
3.3V
V
IN
LT3905
3905 TA04a
1:5
MON
1:20
ILIM_MON
R4
4.99k
1mA OUT
1:10
LOS_MON
R3
49.9k
250µA
LOS
R5
3.1k
R8
49.9Ω
V
OUT
FB
MONIN
APD
1mA
APD
GND
C2
220nF
C4
3.3nF
C3
0.1µF
R1
732k
UP TO 62V
R2
15k
V
IN
SW
CTRL
EN/UVLO
LOS_ADJ
f
SEL
LOS
ILIM
C1: AVX X7R 0805YC105KAT2A
C2: AVX X7R 12061C224KAT2A
C3: AVX X7R 08051C104K4T2A
C4: AVX X7R 0603YC332KAT2A
L1: COOPER SD3110-100-R
V
APD
(V)
10
APD CURRENT (mA)
1.000
1.025
50
3905 TA04b
0.975
0.950
20
30
40
60
1.050
APD Current Regulation vs V
APD
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

LT3905EUD#TRPBF

Mfr. #:
Buy LT3905EUD#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 60V Boost DC-DC Converter with APD Current Monitor
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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