參數(shù)資料
型號(hào): LT1937ES5#TR
廠商: LINEAR TECHNOLOGY CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: 0.32 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO5
封裝: PLASTIC, TSOT-23, 5 PIN
文件頁(yè)數(shù): 4/12頁(yè)
文件大?。?/td> 355K
代理商: LT1937ES5#TR
12
LT1937
1937f
PART NUMBER
DESCRIPTION
COMMENTS
LT1615
Micropower Step-Up Converter in ThinSOT
Up to 36V Output; 20
A IQ, VIN: 1V to 15V,
Can Drive Up to Six LEDs, ThinSOT Package
LT1618
Constant Current/Voltage Step-Up DC/DC
1.4MHz, Drives Up to 20 LEDs, MS10 Package
LT1932
White LED Step-Up Converter in ThinSOT
1.2MHz, VIN = 1V to 10V, Drives Up to Eight LEDs from 3V Input,
ThinSOT Package
LT1944/LT1944-1
Dual Micropower Step-Up Converter
VIN = 1.2V to 15V, Two Independent DC/DCs, Up to 36VOUT, 20A IQ,
MS10 Package
LTC
3200/LTC3200-5 Low Noise White LED Charge Pump Converter
2MHz, 100mA, No Inductor Required, MS8/ThinSOT Packages
For up to 6 LEDs
LTC3201
Ultralow Noise White LED Charge Pump Converter
1.8MHz, 100mA, No Inductor Required, DAC Brightness Adj,
For up to 6 LEDs
MS8 Package
LTC3202
Low Noise White LED Fractional Charge Pump Converter
1.5MHz, 125mA, No Inductor Required, Digital Brightness Adjust,
For up to 6 LEDs
MS8 Package
LT/TP 0702 2K PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2002
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507 q www.linear.com
Li-Ion to Four White LEDs
Four LED Efficiency
VIN
SW
LT1937
L
22
H
COUT
0.22
F
CIN
1
F
CIN: TAIYO YUDEN JMK107BJ105
COUT: AVX 0603YD224
D: CENTRAL CMDSH-3
L: MURATA LQH3C220
1937 TA02a
VIN
3V TO 5V
SHDN
R1
4
5k
90k
FB
D
VDC
DIMMING
GND
LOAD CURRENT (mA)
0
60
EFFICIENCY
(%)
70
75
80
85
510
1937 TA02b
15
20
VIN = 3V
VIN = 3.6V
U
TYPICAL APPLICATIO
RELATED PARTS
0.2
s/DIV
1937 TA02c
VSW
10V/DIV
ISW
100mA/DIV
VOUT
100mV/DIV
VIN = 3.6V
FOUR LEDs
15mA
Switching Waveforms
相關(guān)PDF資料
PDF描述
LT1937ESC6#PBF 0.32 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO6
LT3484EDCB-0#PBF SPECIALTY ANALOG CIRCUIT, PDSO6
LT3484EDCB-2#PBF SPECIALTY ANALOG CIRCUIT, PDSO6
LT3484EDCB-1#PBF SPECIALTY ANALOG CIRCUIT, PDSO6
LT3493EDCB#PBF 2.2 A SWITCHING REGULATOR, 815 kHz SWITCHING FREQ-MAX, PDSO6
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參數(shù)描述
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