Purchase LTC3528B-2, In-stock LTC3528B-2 From SeekIC.
Part Number: LTC3528B-2
Description: The LTC®3528B-2 is a synchronous, fi xed frequency step-up DC/DC converter with output disconnect....
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LTC3528B-2
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DataSheet
General Description
LTC3528B-2 General Description
The LTC®3528B-2 is a synchronous, fi xed frequency step-up DC/DC converter with output disconnect. High effi ciency synchronous rectifi cation, 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 2MHz minimizes solution footprint by allowing the use of tiny, low profi le inductors and ceramic capacitors. The current mode PWM is internally compensated, simplifying the design process. The LTC3528B-2 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, shortcircuit protection and thermal overload protection.
The LTC3528B-2 is offered in an 8-lead 2mm × 3mm × 0.75mm DFN package.
LTC3528B-2 Maximum Ratings
VIN Voltage ................................................... 0.3V to 6V
SW Voltage
DC ................................................................. 0.3V to 6V
Pulsed < 100ns ............................................. 0.3V to 7V
SHDN, FB Voltage .......................................... 0.3V to 6V
VOUT ............................................................. 0.3V to 6V
PGOOD .......................................................... 0.3V to 6V
Operating Temperature Range
(Notes 2, 5) ............................................... 40 to 85
Junction Temperature ............................................. 125
Storage Temperature Range ................... 65 to 125
SW Voltage
DC ................................................................. 0.3V to 6V
Pulsed < 100ns ............................................. 0.3V to 7V
SHDN, FB Voltage .......................................... 0.3V to 6V
VOUT ............................................................. 0.3V to 6V
PGOOD .......................................................... 0.3V to 6V
Operating Temperature Range
(Notes 2, 5) ............................................... 40 to 85
Junction Temperature ............................................. 125
Storage Temperature Range ................... 65 to 125
LTC3528B-2 Features
`Delivers 3.3V at 200mA from a Single Alkaline/
`NiMH Cell or 3.3V at 400mA from Two Cells
`VIN Start-Up Voltage: 700mV
`0.50V to 5.5V Input Range
`1.6V to 5.25V VOUT Range
`Up to 94% Effi ciency
`Output Disconnect
`2MHz Fixed Frequency Operation
`VIN > VOUT Operation
`Integrated Soft-Start
`Current Mode Control with Internal Compensation
`Low Noise PWM Operation
`Internal Synchronous Rectifi er
`Logic Controlled Shutdown: <1A
`Anti-Ringing Control
`Low Profi le (2mm * 3mm * 0.75mm) DFN Package
`NiMH Cell or 3.3V at 400mA from Two Cells
`VIN Start-Up Voltage: 700mV
`0.50V to 5.5V Input Range
`1.6V to 5.25V VOUT Range
`Up to 94% Effi ciency
`Output Disconnect
`2MHz Fixed Frequency Operation
`VIN > VOUT Operation
`Integrated Soft-Start
`Current Mode Control with Internal Compensation
`Low Noise PWM Operation
`Internal Synchronous Rectifi er
`Logic Controlled Shutdown: <1A
`Anti-Ringing Control
`Low Profi le (2mm * 3mm * 0.75mm) DFN Package
LTC3528B-2 Typical Application
·Medical Instruments
·Flash-Based MP3 Players
·Noise Canceling Headphones
·Wireless Mice
·Bluetooth Headsets
·Flash-Based MP3 Players
·Noise Canceling Headphones
·Wireless Mice
·Bluetooth Headsets
LTC3528B-2 Connection Diagram
LTC0157
PDF/DataSheet Download
- Datasheet: LTC0157
- File Size: 163926 KB
- Manufacturer: ETC [ETC]
- Click here to Download
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LTC3528B-2 Relative Products
LTC3528B
The LTC®3528/LTC3528B are synchronous, fi xed frequency step-up DC/DC converters with output disconnect. High effi ciency synchronous rectifi cation, in addition to a 700mV start-up voltage and operation down to 500mV once started, provides longer run-ti...
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The LTC®3528/LTC3528B are synchronous, fi xed frequency step-up DC/DC converters with output disconnect. High effi ciency synchronous rectifi cation, in addition to a 700mV start-up voltage and operation down to 500mV once started, provides longer run-ti...
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