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參數資料
型號: LT3684IDD
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩壓器
英文描述: 4 A SWITCHING REGULATOR, 3300 kHz SWITCHING FREQ-MAX, PDSO10
封裝: 3 X 3 MM, PLASTIC, MO-229WEED-2, DFN-10
文件頁數: 1/24頁
文件大小: 326K
代理商: LT3684IDD
LT3684
1
3684f
36V, 2A, 2.8MHz Step-Down
Switching Regulator
The LT
3684isanadjustablefrequency(300kHzto2.8MHz)
monolithic buck switching regulator that accepts input
voltages up to 34V (36V maximum). A high efciency
0.18
Ω switch is included on the die along with a boost
Schottky diode and the necessary oscillator, control and
logic circuitry. Current mode topology is used for fast
transient response and good loop stability. The LT3684’s
high operating frequency allows the use of small, low cost
inductors and ceramic capacitors resulting in low output
ripple while keeping total solution size to a minimum.
The low current shutdown mode reduces input supply
current to less than 1A while a resistor and capacitor on
the RUN/SS pin provide a controlled output voltage ramp
(soft-start). A power good ag signals when VOUT reaches
90% of the programmed output voltage. The LT3684 is
available in 10-Pin MSOP and 3mm
× 3mm DFN packages
with Exposed Pads for low thermal resistance.
Automotive Battery Regulation
Power for Portable Products
Distributed Supply Regulation
Industrial Supplies
Wall Transformer Regulation
Wide Input Range: 3.6V to 34V Operating,
36V Maximum
2A Maximum Output Current
Adjustable Switching Frequency: 300kHz to 2.8MHz
Low Shutdown Current: IQ < 1A
Integrated Boost Diode
Power Good Flag
Saturating Switch Design: 0.18
Ω On-Resistance
1.265V Feedback Reference Voltage
Output Voltage: 1.265V to 20V
Soft-Start Capability
Small 10-Pin Thermally Enhanced MSOP and
(3mm
× 3mm) DFN Packages
3.3V Step-Down Converter
Efciency
FEATURES
DESCRIPTION
APPLICATIONS
TYPICAL APPLICATION
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
SW
BIAS
FB
VC
PG
RT
VIN
BD
VIN
4.5V TO
34V
VOUT
3.3V
2A
4.7
F
0.47
F
330pF
22
F
200k
16.2k
60.4k
4.7
H
324k
GND
OFF ON
LT3684
3684 TA01
RUN/SS
BOOST
LOAD CURRENT (A)
0
30
EFFICIENCY
(%)
40
50
60
70
80
90
0.5
1
1.5
2
3684 TA01b
VIN = 12V
VOUT = 3.3V
L = 4.7
H
f = 800kHz
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相關代理商/技術參數
參數描述
LT3684IDD#PBF 功能描述:IC REG BUCK ADJ 2A 10DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:250 系列:- 類型:降壓(降壓) 輸出類型:固定 輸出數:1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 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:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON(1.45x1) 產品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2
LT3684IDD#TRPBF 功能描述:IC REG BUCK ADJ 2A 10DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 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
LT3684IMSE 制造商:LINER 制造商全稱:Linear Technology 功能描述:36V, 2A, 2.8MHz Step-Down Switching Regulator
LT3684IMSE#PBF 功能描述:IC REG BUCK ADJ 2A 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:250 系列:- 類型:降壓(降壓) 輸出類型:固定 輸出數:1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 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:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON(1.45x1) 產品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2
LT3684IMSE#PBF 制造商:Linear Technology 功能描述:DC-DC CONVERTER BUCK 2.8MHZ 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BUCK, 2.8MHZ, MSOP-10
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