參數(shù)資料
型號： LT3686IDD#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 2.65 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10
封裝： 3 X 3 MM, LEAD FREE, PLASTIC, MO-229WEED-2, DFN-10
文件頁數(shù)： 1/28頁
文件大小： 509K
代理商： LT3686IDD#TRPBF
LT3686
1
3686fc
ApplicAtions
37V/1.2A Step-Down
Regulator in 3mm
× 3mm DFN
The LT3686 is a current mode PWM step-down DC/DC
converter with an internal 1.2A power switch, packaged in
10-lead 3mm
× 3mm DFN. The wide input range of 3.6V to
37V makes the LT3686 suitable for regulating power from
awidevarietyofsources,including24Vindustrialsupplies
and automotive batteries. Its high maximum frequency al-
lows the use of tiny inductors and capacitors, resulting in
a very small solution. Operating frequency above the AM
band avoids interfering with radio reception, making the
LT3686 particularly suitable for automotive applications.
Cycle-by-cycle current limit and DA current sense provide
protectionagainstfaultconditions.Soft-startandfrequency
foldback eliminate input current surge during start-up. An
optional internal regulated active load at the output via
the BD pin keeps the LT3686 at full switching frequency
at light loads, resulting in low, predictable output ripple
abovetheaudioandAMbands.Internalcompensationand
an internal boost diode reduce external component count.
L
, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks
of Linear Technology Corporation. All other trademarks are the property of their respective
owners.
3.3V Step-Down Converter
SW
DA
FB
MODE
SS
RT
VIN
6V TO 37V
BD
VOUT
3.3V
1.2A
0.22F
MBRM140
2.2F
10nF
15.4k
22F
10k
6.8H
31.6k
GND
LT3686
3686 TA01a
EN/UVLO
BOOST
(VIN 6V TO 16V AT 2.1MHz)
12VIN Efficiency (2.1MHz)
FeAtures
Description
n
Automotive Systems
n
Battery-Powered Equipment
n
Wall Transformer Regulation
n
Distributed Supply Regulation
n
Wide Input Range:
Operation from 3.6V to 37V
Overvoltage Lockout Protects Circuit Through
55V Transients
n
Low Minimum On-Time:
Converts 16VIN to 3.3VOUT at 2MHz
n
1.2A Output Current
n
Adjustable Frequency: 300kHz to 2.5MHz
n
Constant Switching Frequency at Light Loads
n
Tracking and Soft-Start
n
Precision UVLO
n
Short-Circuit Robust
n
IQ in Shutdown <1A
n
Internally Compensated
n
10-Lead 3mm
× 3mm DFN Package
typicAl ApplicAtion
LOAD CURRENT (mA)
0
EFFICIENCY
(%)
10
30
40
50
70
400
800
1000
3686 TA01b
20
80
90
60
200
600
1200
5VOUT
3.3VOUT
相關(guān)PDF資料
PDF描述
LT3688IFE#TRPBF SWITCHING REGULATOR, PDSO24
LT3688EUF#PBF SWITCHING REGULATOR, PQCC24
LT3688IFE#PBF SWITCHING REGULATOR, PDSO24
LT3688HFE#PBF SWITCHING REGULATOR, PDSO24
LT3688HFE#TRPBF SWITCHING REGULATOR, PDSO24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT3688 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 800mA Step-Down Switching Regulator with Power-On Reset
LT3688EFE#PBF 功能描述:IC REG BUCK ADJ 0.8A DL 24TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:MIC23xxx HyperLight Load™ Regulators 標準包裝:5,000 系列:HyperLight Load® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.8V 輸入電壓:2.7 V ~ 5.5 V PWM 型:混合物 頻率 - 開關(guān):4MHz 電流 - 輸出:2A 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:8-VFDFN 裸露焊盤，8-MLF? 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:8-MLF?（2x2） 產(chǎn)品目錄頁面:1094 (CN2011-ZH PDF) 其它名稱:576-3303-2
LT3688EFE#TRPBF 功能描述:IC REG BUCK ADJ 0.8A DL 24TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT
LT3688EFEPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 800mA Step-Down Switching Regulator with Power-On Reset
LT3688EUF#PBF 功能描述:IC REG BUCK ADJ 0.8A DL 24QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT
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