FAN5307SX
FAN5307SX Datasheet
FAN5307 High-Efficiency Step-Down DC-DC Converter
| Part | Datasheet |
|---|---|
FAN5307SX |
FAN5307SX (pdf) |
| Related Parts | Information |
|---|---|
FAN5307MPX |
FAN5307MPX |
|
FAN5307S15X |
FAN5307S15X |
FAN5307MP18X |
FAN5307MP18X |
|
FAN5307S18X |
FAN5307S18X |
| PDF Datasheet Preview |
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| FAN5307 High-Efficiency Step-Down DC-DC Converter August 2009 FAN5307 High-Efficiency Step-Down DC-DC Converter 95% Efficiency, Synchronous Operation Adjustable Output Voltage Option 0.7V to 0.8VIN 2.5V to 5.5V Input Voltage Range Customized Fixed Output Voltage Options Up to 300mA Output Current Fixed Frequency 1MHz PWM Operation High-Efficiency, Power-Save Mode 100% Duty Cycle Low Dropout Operation Soft Start Dynamic Output Voltage Positioning 15µA Quiescent Current Excellent Load Transient Response 5-Lead SOT-23 Package 6-Lead MLP 3x3mm Package Pocket PCs, PDAs Cell Phones Battery-Powered Portable Devices Digital Cameras Low Power DSP Supplies The FAN5307, a high-efficiency, low-noise synchronous PWM current mode and Pulse Skip Power-Save mode DC-DC converter, is designed for battery-powered applications. It provides up to 300mA of output current over a wide input range from 2.5V to 5.5V. The output voltage can be either internally fixed or externally adjustable over a wide range of 0.7V to 0.8VIN by an external voltage divider. Custom output voltages are also available. Contact a Fairchild sales representative for customized output voltage options. At moderate and light loads, pulse skipping modulation is used. Dynamic voltage positioning is applied, and the output voltage is shifted above nominal value, for increased headroom during load transients. At higher loads, the system automatically switches to current mode PWM control, operating at 1 MHz. A current mode control loop with fast transient response ensures excellent line and load regulation. In Power-Save mode, the quiescent current is reduced to 15µA to achieve high efficiency and ensure long battery life. In shutdown mode, the supply current drops below 1µA. The device is available in 5-lead SOT-23 and 6-lead MLP 3x3mm packages. Ordering Information FAN5307S18X FAN5307MP18 X FAN5307S15X FAN5307MP15 X FAN5307SX Operating Temperature Range -40 to +85°C -40 to +85°C -40 to +85°C -40 to +85°C -40 to +85°C FAN5307MPX -40 to +85°C VOUT V Package Adjustable 5-Lead SOT-23 6-lead 3x3mm Molded Leadless Package MLP 5-Lead SOT-23 6-lead 3x3mm Molded Leadless Package MLP 5-Lead SOT-23 6-lead 3x3mm Molded Leadless Package MLP Eco Status RoHS Green RoHS Green RoHS Green Packing Method Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel For Fairchild’s definition of Eco Status, please visit: FAN5307 High-Efficiency Step-Down DC-DC Converter VIN CIN = 4.7µF GND 2 6 FB PGND 4 LX 10µH VOUT COUT=10µF Figure 6-Lead 3x3mm MLP Figure 5-Lead SOT-23 Efficiency [%] 95 VIN=2.5V 90 VIN=3.6V 85 VIN=5.5V 1000 Load Current [mA] Figure Efficiency vs. Load Current VOUT=1.8V 2005 Fairchild Semiconductor Corporation FAN5307 High-Efficiency Step-Down DC-DC Converter Pin Configuration |
| More datasheets: AS1525-TD_EK_ST | AS1524-TD_EK_ST | AS1525-BTDR | AS1524-BTDT | AS1524-BTDR | AS1525-BTDT | 76000777 | FAN5307MPX | FAN5307S15X | FAN5307MP18X |
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