Silinktek XT1801
The XT1801 is a synchronous, fixed frequency, step-up DC/DC converters delivering high efficiency in a 8-lead SOP package. The devices contain an internal NMOS switch and PMOS synchronous rectifier. The current mode PWM design is internally compensated, reducing external parts count.| Part No. | XT1801 |
|---|---|
| Datasheet | XT1801 Download |
| Manufacturer | Silinktek |
| Description | 1.5MHz Micropower Synchronous Boost Converter |
| Buy | Stock & Price |
GENERAL DESCRIPTION
A switching frequency of 1.5MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The XT1801 features automatic shifting to power saving PFM Mode operation at light loads. Antiringing control circuitry reduces EMI concerns by damping the inductor in discontinuous mode, and the devices feature low shutdown current of under 1µA. Both devices are available in the low profile SOP-8/PP package.●
APPLICATIONS
● MP3/4 PMP● Digital Camera
● LCD Bias Voltage
● Handheld Instruments
● Wireless Handsets
● GPS Receivers
● Typical Application Circuit
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FEATURES
● Up to 93% efficiency● 1.5MHz fixed frequency switching
● Internal synchronous rectifier
● 2.5V to 5V output range
● Automatic PFM/PWM mode operation
● Logic controlled shutdown (<1µA)
● Antiringing control minimizes EMI
● Tiny external components
● Low profile SOP-8/PP package
● Package
● SOP-8/PP 3.3uH VIN 4.7uF SW VIN VOUT OFF/ON CE FB GND 1.02M 1% 604K 1% VOUT 10uF GND 3.3uH D1 VIN 4.7uF SW VIN VOUT OFF/ON CE FB VOUT R1 10uF R2 Figure1.Vout=3.3V Figure 2.Vout>4.5V Rev.1.0 —Nov.
