參數(shù)資料
型號(hào): LT3465ES6
廠商: LINEAR TECHNOLOGY CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: 1.2MHz/2.4MHz White LED Step-Up Converters with Built-In Schottky in ThinSOT
中文描述: 0.34 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO6
封裝: 1 MM HEIGHT, PLASTIC, MO-193, TSOT-23, 6 PIN
文件頁(yè)數(shù): 1/12頁(yè)
文件大?。?/td> 375K
代理商: LT3465ES6
LT3465/LT3465A
1
3465af
APPLICATIU
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
I
Inherently Matched LED Current
I
Drives Up to Six LEDs from a 3.6V Supply
I
No External Schottky Diode Required
I
1.2MHz Switching Frequency (LT3465)
I
2.4MHz Switching Frequency Above AM Broadcast
Band (LT3465A)
I
Automatic Soft-Start (LT3465)
I
Open LED Protection
I
High Efficiency: 81% (LT3465) 79% (LT3465A)
Typical
I
Requires Only 0.22
μ
F Output Capacitor
I
Low Profile (1mm) SOT-23 Packaging
1.2MHz/2.4MHz White LED
Step-Up Converters with
Built-In Schottky in ThinSOT
I
Cellular Phones
I
PDAs, Handheld Computers
I
Digital Cameras
I
MP3 Players
I
GPS Receivers
The LT
3465/LT3465A are step-up DC/DC converters
designed to drive up to six LEDs in series from a Li-Ion cell.
Series connection of the LEDs provides identical LED
currents and eliminates the need for ballast resistors.
These devices integrate the Schottky diode required exter-
nally on competing devices. Additional features include
output voltage limiting when LEDs are disconnected, one-
pin shutdown and dimming control. The LT3465 has
internal soft-start.
The LT3465 switches at 1.2MHz, allowing the use of tiny
external components. The faster LT3465A switches at
2.4MHz. Constant frequency switching results in low input
noise and a small output capacitor. Just 0.22
μ
F is required
for 3-, 4- or 5-LED applications.
The LT3465 and LT3465A are available in low profile
(1mm) 6-lead SOT-23 (ThinSOT
TM
) packages.
Figure 1. Li-Ion Powered Driver for Four White LEDs
SW
V
IN
V
OUT
LT3465/
LT3465A
CTRL
GND
3465A F01a
10
C1
1
μ
F
C2
0.22
μ
F
C1, C2: X5R OR X7R DIELECTRIC
L1: MURATA LQH32CN220
L1
22
μ
H
3V TO 5V
SHUTDOWN
AND DIMMING
CONTROL
FB
LED CURRENT (mA)
0
E
78
76
74
80
20
3465A F01b
60
70
68
66
64
62
72
5
10
15
82
V
IN
= 3.6V
4 LEDs
LT3465
LT3465A
Conversion Efficiency
相關(guān)PDF資料
PDF描述
LT3465AES6 1.2MHz/2.4MHz White LED Step-Up Converters with Built-In Schottky in ThinSOT
LT3470 Micropower Buck Regulator with Integrated Boost and Catch Diodes
LT3470ETS8 Micropower Buck Regulator with Integrated Boost and Catch Diodes
LT3470ITS8 Micropower Buck Regulator with Integrated Boost and Catch Diodes
LTBDM Micropower Buck Regulator with Integrated Boost and Catch Diodes
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT3465ES6#PBF 制造商:Linear Technology 功能描述:IC WHITE LED DRIVER SCHOTTKY SMD 制造商:Linear Technology 功能描述:IC, WHITE LED DRIVER, SCHOTTKY, SMD 制造商:Linear Technology 功能描述:LED DRIVER, BOOST, PWM/ANALOGUE, 2.4MHZ, TSOT-23-6; Topology:Boost (Step Up); No. of Outputs:1; Output Voltage:30V; Driver Case Style:TSOT-23; Input Voltage Min:2.7V; Input Voltage Max:16V; Dimming Control Type:PWM / Analogue ;RoHS Compliant: Yes
LT3465ES6#TR 功能描述:IC LED DRIVR WHITE BCKLGT TSOT-6 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?開(kāi)路漏極,PWM 輸出數(shù):4 內(nèi)部驅(qū)動(dòng)器:是 類(lèi)型 - 主要:LED 閃爍器 類(lèi)型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類(lèi)型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱(chēng):935286881118PCA9553TK/02-TPCA9553TK/02-T-ND
LT3465ES6#TRM 功能描述:IC LED DRIVR WHITE BCKLGT TSOT-6 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?開(kāi)路漏極,PWM 輸出數(shù):4 內(nèi)部驅(qū)動(dòng)器:是 類(lèi)型 - 主要:LED 閃爍器 類(lèi)型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類(lèi)型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱(chēng):935286881118PCA9553TK/02-TPCA9553TK/02-T-ND
LT3465ES6#TRMPBF 功能描述:IC LED DRIVR WHITE BCKLGT TSOT-6 RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:60 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?線性(LDO),PWM,升壓(升壓) 輸出數(shù):8 內(nèi)部驅(qū)動(dòng)器:是 類(lèi)型 - 主要:背光 類(lèi)型 - 次要:RGB,白色 LED 頻率:500kHz ~ 1.5MHz 電源電壓:4.75 V ~ 26 V 輸出電壓:45V 安裝類(lèi)型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* 工作溫度:-40°C ~ 85°C
LT3465ES6#TRMPBF 制造商:Linear Technology 功能描述:DC/DC Converter IC