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參數資料
| 型號： | LT3502AIDC#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 2 X 2 MM, LEAD FREE, PLASTIC, DFN-8 |
| 文件頁數： | 1/24頁 |
| 文件大?。?/td> | 386K |
| 代理商： | LT3502AIDC#PBF |
LT3502/LT3502A
1
3502fd
FEATURES
APPLICATIONS
DESCRIPTION
1.1MHz/2.2MHz, 500mA
Step-Down Regulators in
2mm
× 2mm DFN and MS10
The LT3502/LT3502A are current mode PWM step-down
DC/DC converters with an internal 500mA power switch,
in tiny 8-lead 2mm
× 2mm DFN and 10-lead MS10
packages. The wide input voltage range of 3V to 40V makes
the LT3502/LT3502A suitable for regulating power from a
wide variety of sources, including 24V industrial supplies
and automotive batteries. Its high operating frequency
allows the use of tiny, low cost inductors and capacitors,
resulting in a very small solution. Constant frequency
above the AM band avoids interfering with radio reception,
making the LT3502A particularly suitable for automotive
applications.
Cycle-by-cycle current limit and frequency foldback
provide protection against shorted outputs. Soft-start
and frequency foldback eliminates input current surge
during start-up. DA current sense provides further protec-
tion in fault conditions. An internal boost diode reduces
component count.
3.3V Step-Down Converter
n 3V to 40V Input Voltage Range
n 500mA Output Current
n Switching Frequency: 2.2MHz (LT3502A),
1.1MHz (LT3502)
n 800mV Feedback Voltage
n Short-Circuit Robust
n Soft-Start
n Low Shutdown Current: <2μA
n Internally Compensated
n Internal Boost Diode
n Thermally Enhanced 2mm
× 2mm 8-Lead DFN
and 10-Lead MS10 Package
n Automotive Systems
n Battery-Powered Equipment
n Wall Transformer Regulation
n Distributed Supply Regulation
LT3502A 12VIN Efciency
VIN
0.1μF
3502 TA01a
31.6k
10k
6.8μH
SHDN
BOOST
SW
LT3502A
BD
GND
DA
FB
OFF ON
10μF
1μF
VIN
4.7V TO 40V
VOUT
3.3V
500mA
LOAD CURRENT (A)
0
EFFICIENCY
(%)
10
30
40
50
0.2
0.4
0.5
90
3502 TA01b
20
0.1
0.3
60
70
80
3.3VOUT
5VOUT
TYPICAL APPLICATION
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
相關PDF資料 |
PDF描述 |
|---|---|
| LT3502AIDC#TR | 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO10 |
| LT3502AEDC#TRM | 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO10 |
| LT3502IDC#TR | 1.1 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO10 |
| LT3502IDC#TRM | 1.1 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO10 |
| LT3502AIDC | 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO10 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LT3502AIDCTRMPBF | 制造商:Linear Technology 功能描述:DC-DC Converter Step-Down 3-40V DFN8EP |
| LT3502AIDC-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.1MHz/2.2MHz, 500mA Step-Down Regulators in 2mm × 2mm DFN and MS10 |
| LT3502AIMS#PBF | 功能描述:IC REG BUCK ADJ 0.5A 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤 |
| LT3502AIMS#TRPBF | 功能描述:IC REG BUCK ADJ 0.5A 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤 |
| LT3502AIMS-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.1MHz/2.2MHz, 500mA Step-Down Regulators in 2mm × 2mm DFN and MS10 |
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