LT1937 LINER [Linear Technology], LT1937 Datasheet - Page 24

• Manufacturer Part Number: LT1937
• Description: 20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN
• Manufacturer: LINER [Linear Technology]

RELATED PARTS
LT3498
TYPICAL APPLICATION
PART
NUMBER
LT1932
LT1937
LT3463/
LT3463A
LT3465/
LT3465A
LT3466/
LT3466-1
LT3471
LT3473/
LT3473A
LT3491
LT3494/
LT3494A
LT3497
LT3591
ThinSot and True Color PWM are trademarks of Linear Technology Corporation
24
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
7
6
4
2
1
0
5
3
DESCRIPTION
Constant-Current, 1.2MHz, High Effi ciency White LED
Boost Regulator
Constant-Current, 1.2MHz, High Effi ciency White LED
Boost Regulator
Dual Output, Boost/Inverter, 250mA I
Off-Time, High Effi ciency Step-Up DC/DC Converter with
Integrated Schottky Diodes
Constant-Current, 1.2/2.7MHz, High Effi ciency White LED
Boost Regulator with Integrated Schottky Diode
Dual Constant-Current, 2MHz, High Effi ciency White LED
Boost Regulator with Integrated Schottky Diode
Dual Output, Boost/Inverter, 1.3A ISW, 1.2MHZ, High
Effi ciency Boost-Inverting DC/DC Converter
40V, 1A , 1.2MHz Micropower Low Noise Boost Converter
with Output Disconnect
Constant-Current, 2.3MHz, High Effi ciency White LED
Boost Regulator with Integrated Schottky Diode
40V, 180mA/350mA Micropower Low Noise Boost
Converter with Output Disconnect
Dual 2.3MHz, Full Function LED Driver with Integrated
Schottky Diode and 250:1 True Color PWM
Constant-Current, 1MHz, High Effi ciency White LED
Boost Regulator with Integrated Schottky Diode and 80:1
True Color PWM Dimming
0.1
Output Voltage Ripple
vs Load Current
LOAD CURRENT (mA)
●
1
FAX: [phone]
10
3498 TA06d
●
SW
www.linear.com
100
, Constant
TM
Dimming
COMMENTS
V
V
SC70 Packages
V
DFN-10 Package
V
DFN-10 Package
V
DFN-8 Package
V
DFN-10 Package
V
DFN-12 Package
V
DFN-6 and SC70 Packages
V
DFN-8 Package
V
DFN-10 Package
V
DFN-8 Package
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
: 1V to 10V; V
: 2.5V to 10V; V
: 2.3V to 15V; V
: 2.3V to 16V; V
: 2.3V to 16V; V
: 2.4V to 16V; V
: 2.2V to 16V; V
: 2.5V to 12V; V
: 2.3V to 16V; V
: 2.5V to 10V; V
: 2.5V to 12V; V
V
25
24
23
22
21
20
19
18
17
16
15
OUT
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
R
FB2
= 34V; I
VALUE REQUIRED
= 34V; I
= ±40V; I
= 40V; I
= 40V; I
= ±40V; I
= 36V; I
= 27V; I
= 40V; I
= 32V; I
= 40V; I
(MΩ)
3.57
3.40
3.24
3.09
2.94
2.80
2.67
2.49
2.37
2.21
2.05
Q
= 1.2mA; I
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
= 1.9µA; I
= 40µA; I
= 65µA; I
= 150µA; I
= 12.6µA; I
= 65µA; I
= 6mA; I
= 4mA; I
= 40µA; I
= 2.5µA; I
© LINEAR TECHNOLOGY CORPORATION 2007
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
= <1µA; ThinSOT
= <12µA; 3mm × 2mm
= <9µA; 3mm × 2mm
= <1µA; 3mm × 3mm
= <1µA; 3mm × 2mm
= <1µA; 3mm × 2mm
= <1µA; ThinSOT and
= <1µA; 3mm × 3mm
= <1µA; 3mm × 3mm
= <1µA; 3mm × 3mm
= <8µA; 2mm × 2mm
CURRENT AT 3V INPUT
MAXIMUM OUTPUT
LT 0507 • PRINTED IN USA
(mA)
12.5
13.4
14.4
15.6
16.8
18.1
19.6
21.2
22.5
24.2
26
TM
Package
3498f