YB1211ST25 데이터 시트보기 (PDF) - YOBON TECHNOLOGIES,INC.
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YB1211ST25 Datasheet PDF : 9 Pages
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YB1211
300mA External Adjustable LDO Regulator
Description
The YB1211 is a low-noise, low dropout (LDO) linear
regulator with enable function and external
adjustable output voltage. It operates at an input
supply of 2.0~6.0V and is able to output voltages
ranging from 1.23V (The YB1211 internal reference
voltage) to 5V by a feedback from a pair of resistor
divider.
The YB1211 regulators are optimized to work with
low-ESR and low cost ceramic capacitors, reducing
the amount of board space critical in portable
devices. The YB1211 requires only 1.0μF output
capacitor for stability with a load up to 300mA and
consumes less than 1μA in shutdown mode.
Features
• 1.235V Internal Reference Voltage
• Adjustable Output Voltage : 1.22~5.0V
• Low-Noise and Low-Drop-Out
• Typical Output Current : 300mA
• Low Quiescent Current: ~60μA
• 320mV Dropout at 300mA 3.3V Output
• Stable with 1.0μF Ceramic Capacitor
• Only Need Input and Output Capacitors
• Thermal Protection Shutdown
• Output Short-Circuit Current Limit
• Built-In Internal Soft-Start
• Green Package (RoHS) Available
Applications
Built-in thermal shutdown and short-circuit protect
offer secure protection against fault operation. The
YB1211 regulators are available in a small SOT-25
package.
• PDA, Notebook, PC Computers
• DSC, Handset Camera Modules
• PCMCIA Cards, PC Cameras
• USB Based Portable Devices
• GSM/GPRS/3G RF Transceiver
• Wireless LANs
• Bluetooth Portable Radios
• Battery-Powered Devices
Typical Application Circuitry
YB1211 MRev. 1.0
www.yobon.com.tw
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