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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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AT1865 Fiches technique(PDF) 1 Page - Global Mixed-mode Technology Inc |
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AT1865 Fiches technique(HTML) 1 Page - Global Mixed-mode Technology Inc |
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1 / 1 page  Ver: 0.3 Mar 17, 2010 TEL: 886-3-5788833 http://www.gmt.com.tw 1 AT1865 Global Mixed-mode Technology Inc. 4+1 Channel DC-DC converter for DV Features 1.8V ~ 5.5V BAT Input Voltage Operation. 3.0V ~ 5.5V VCC Input Voltage Operation. 95% Efficient DC/DC Converter. Combine Step-Up and Step-Down for 90% Effi- cient Boost-Buck and Buck-Boost. Highly Integrated 4+1 CH DC/DC with inte- grated Power MOSFETs. CH2 Selectable Buck or Boost for Li-ion Bat- tery Application. 4 Channel Built-in Synchronous Rectified Cur- rent-Mode PWM Converters. Low Power Consumption (Sleep Mode) <10uA. Built-In Short-circuit Protection (SCP) and Over Current Protection (OCP) for MOSFETs. Built-In Over Voltage Protection (OVP) and Over Load Protection (OLP). Built-In Soft-Start Function. Built-In Power ON/OFF Sequence Control. Built-In RTC LDO Built-In RESET function Fixed 1MHz Operating Frequency. TQFN28 Package (4mm x 4mm). General Description The AT1865 provide a complete power supply solution for digital video. They improve performance, compo- nent count, and size compared to other multi-channel controllers in 1-cell Li-Ion battery designs. On-chip MOSFETs provide up to 92~95% efficiency for critical power supplies. Channel 1/2/3/4 operate at one fixed frequency of 1MHz to optimize size, cost, and effi- ciency. Channel 5 operate as LDO. Applications DV Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) AT1865RV1U A1865 0°C to +85°C TQFN4X4-28 Note: RV: TQFN4X4-28 1: Bonding Code U: Tape & Reel Pin Configuration AT1865 TQFN4X4-28 LX3 RESET CT VREF AGND VCC LX1 RTC_IN RTC_OUT VOUT5 PVCC5 CTL5 1 2 3 4 5 6 16 17 18 19 20 21 7 LX4 15 LX2 Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. Thermal Pad AT1865 TQFN4X4-28 LX3 RESET CT VREF AGND VCC LX1 RTC_IN RTC_OUT VOUT5 PVCC5 CTL5 1 2 3 4 5 6 16 17 18 19 20 21 7 LX4 15 LX2 Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. Thermal Pad CH1 Synchronous Rectified Current Mode Step-Up CH2 Selectable Synchronous Rectified Current Mode Step- Up/Step-Down CH3 Synchronous Rectified Current Mode Step- Down CH4 Synchronous Rectified Current Mode Step- Down CH5 LDO AT1865 |
Numéro de pièce similaire - AT1865 |
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Description similaire - AT1865 |
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