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參數資料
| 型號： | LTC3528EDDB#TRM |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, 1300 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 3 X 2 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WECD-1, DFN-8 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 316K |
| 代理商： | LTC3528EDDB#TRM |
LTC3528/LTC3528B
1
3528f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
1A, 1MHz Synchronous
Step-Up DC/DC Converters
in 3mm
× 2mm DFN
The LTC
3528/LTC3528Baresynchronous,xedfrequency
step-up DC/DC converters with output disconnect. High
efciency synchronous rectication, in addition to a 700mV
start-up voltage and operation down to 500mV once
started, provides longer run-time for single or multiple
cell battery-powered products.
A switching frequency of 1MHz minimizes solution foot-
print by allowing the use of tiny, low prole inductors and
ceramic capacitors. The current mode PWM is internally
compensated, simplifying the design process. The LTC3528
enters Burst Mode operation at light loads, while the
LTC3528B features continuous switching at light loads.
Anti-ringing circuitry reduces EMI by damping the inductor
in discontinuous mode. Additional features include a low
shutdown current, open-drain power good output, short-
circuit protection and thermal overload protection.
The LTC3528/LTC3528B are offered in an 8-lead 3mm
×
2mm
× 0.75mm DFN package.
■ Delivers 3.3V at 200mA from a Single Alkaline/
NiMH Cell or 3.3V at 400mA from Two Cells
■ VIN Start-Up Voltage: 700mV
■ 1.6V to 5.25V VOUT Range
■ Up to 94% Efciency
■ Output Disconnect
■ 1MHz Fixed Frequency Operation
■ VIN > VOUT Operation
■ Integrated Soft-Start
■ Current Mode Control with Internal Compensation
■ Burst Mode
Operation with 12μA Quiescent Current
(LTC3528)
■ Low Noise PWM Operation (LTC3528B)
■ Internal Synchronous Rectier
■ Logic Controlled Shutdown: <1μA
■ Anti-Ringing Control
■ Low Prole (3mm
× 2mm × 0.75mm) DFN Package
■ Medical Instruments
■ Flash-Based MP3 Players
■ Noise Canceling Headphones
■ Wireless Mice
■ Bluetooth Headsets
, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology
Corporation. All other trademarks are the property of their respective owners.
SW
VIN
499k
4.7
μH
287k
4.7
μF
10
μF
33pF
3528 TA01a
LTC3528
SHDN
PGOOD
VOUT
FB
VIN
1.8V TO 3.2V
VOUT
3.3V
400mA
OFF ON
GND
LOAD CURRENT (mA)
0.01
80
90
100
3528 TA01b
70
60
0.1
1
10
1000
50
40
30
100
1000
10
1
0.1
0.01
EFFICIENCY
(%)
POWER
LOSS
(mW)
EFFICIENCY
POWER LOSS
VOUT = 3.3V
VIN = 2.4V
Efciency and Power Loss
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC3528EDDB-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1A, 1MHz Synchronous Step-Up DC/DC Converters in 3mm × 2mm DFN |
| LTC3529EDCB#PBF | 制造商:Linear Technology 功能描述:IC SYNC STEP-UP DC/DC CONVERTER DFN-8 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, Cut Tape 1.5A, 2.35MHz Step-Up DC/DC Converter in 2mm x 3mm 制造商:Linear Technology 功能描述:IC, SYNC STEP-UP DC/DC CONVERTER, DFN-8, Primary Input Voltage:5.25V, No. of Outputs:1, Output Voltage:5V, Output Current:500mA, No. of Pins:8, Operating Temperature Min:-40C, Operating Temperature Max:85C, MSL:MSL 1 - Unlimited , RoHS Compliant: Yes |
| LTC3529EDCB#TRMPBF | 功能描述:IC REG BOOST SYNC 5V 1.5A 8DFN 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 |
| LTC3529EDCB#TRPBF | 功能描述:IC REG BOOST SYNC 5V 1.5A 8DFN 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:升壓（升壓） 輸出類型:可調式 輸出數:1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關:600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應商設備封裝:8-SOIC |
| LTC3530 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Wide Input Voltage Synchronous Buck-Boost DC/DC Converter |
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