FAN5307 Fairchild Semiconductor, FAN5307 Datasheet
FAN5307
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FAN5307 Summary of contents
Page 1
... Low Power DSP Supplies Typical Application ©2005 Fairchild Semiconductor Corporation FAN5307 Rev. 1.0.4 General Description The FAN5307, a high efficiency low noise synchronous PWM current mode and Pulse Skip (Power Save) mode IN DC-DC converter is designed for battery-powered appli- cations. 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 fi ...
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... Inductor pin. This pin is connected to the internal MOSFET switches PGND Power ground. Internal N-channel MOSFET is connected to this pin Feedback Input. In case of fixed voltage options, connect this pin directly to the output. For an adjustable voltage option, connect this pin to the resistor divider. FAN5307 Rev. 1.0.4 2 www.fairchildsemi.com ...
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... Using Mil Std. 883E, method 3015.7(Human Body Model) and EIA/JESD22C101-A (Charge Device Model). 3. Refer to the applications section for further details. FAN5307 Rev. 1.0.4 Junction to case, SOT-23 Junction to tab, MLP 3x3 HBM ...
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... Leakage Current into SW Pin Reverse Leakage Current into pin SW Output Voltage Accuracy (6-Lead 3x3mm MLP) Electrical Characteristics for Adjustable Version V = 2.5V to 5.5V 200mA OUT Parameter Feedback (FB) Voltage FAN5307 Rev. 1.0 4.7µ 22µ 10µ OUT X = 25°C. A Conditions Min. Input Voltage 2 ...
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... 0.01 Load Transient Response Test Waveform 6. These limits also apply to any mode transition caused by any kind of load transition within specified output current range. FAN5307 Rev. 1.0.4 = 1.8V Version OUT , C = 4.7µ 22µ 10µ OUT X = 25° ...
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... V =5.5V IN 1020 1000 V =3.6V 980 IN 960 940 920 V =2.5V IN 900 880 -40 -30 -20 - Temperature [ºC] FAN5307 Rev. 1.0.4 = 1.8V, unless otherwise noted.) OUT LOAD TRANSIENT RESPONSE =3. 100 1000 2.5 POWER SAVE (PFM) MODE OPERATION 6 START-UP NO LOAD QUIESCENT CURRENT vs ...
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... GND IS OSC SLOPE COMPENSATION Detailed Operation Description The FAN5307 is a step-down converter operating in a current-mode PFM/PWM architecture with a typical switching frequency of 1MHz. At moderate to heavy loads, the converter operates in pulse-width-modulation (PWM) mode. At light loads the converter enters a power-save mode (PFM pulse skipping) to keep the effi- ciency high ...
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... N-channel rectifier switch. The device stays in sleep mode until the output voltage falls below the low thresh- old. The FAN5307 enters the PWM mode as soon as the output voltage can no longer be regulated in PFM with constant peak current. 100% Duty Cycle Operation ...
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... For the adjustable version the resistor divider should be routed away from the inductor to avoid electromagnetic interference. The 6-lead MLP version of the FAN5307 separates the high current ground from the reference ground, therefore Perfor more tolerant to the PCB layout design and shows mance better performance ...
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... TOP VIEW 0.8 MAX 0.10 C 0.08 C 0.05 0.00 SIDE VIEW SEATING PLANE PIN #1 IDENT 1 0.45 0.20 0.2 MIN 6 0.95 BOTTOM VIEW NOTES: A. CONFORMS TO JEDEC REGISTRATION MO-229, VARIATION WEEA, DATED 11/2001 B. DIMENSIONS ARE IN MILLIMETERS. C. DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994 FAN5307 Rev. 1.0.4 3.0 3.0 0. (0.20) 2.25 3 1.65 4 0.30~0.45 0. 1.90 0. 2.45 2.10 1.65 3.50 (0.70) 0.95 TYP 0.65 TYP RECOMMENDED LAND PATTERN ...
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... D .106 .122 E .059 .071 e .037 BSC e1 .075 BSC H .087 .126 L .004 .024 0° 10° FAN5307 Rev. 1.0 Millimeters Notes Notes: 1. Package outline exclusive of mold flash & Min Max .90 1.45 2. Package outline exclusive of solder plating. .00 .15 3. EIAJ Ref Number SC_74A ...
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... OUT 1.8 1.8 1.5 FAN5307 1.5 Adjustable Adjustable FAN5307 Rev. 1.0.4 (V) Package Type 5-Lead SOT-23 Tape and Reel 6-Lead 3x3mm MLP Tape and Reel 5-Lead SOT-23 Tape and Reel 6-Lead 3x3mm MLP Tape and Reel 5-Lead SOT-23 Tape and Reel 6-Lead 3x3mm MLP Tape and Reel ...
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... PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Preliminary No Identification Needed Obsolete FAN5307 Rev. 1.0.4 PowerSaver™ ISOPLANAR™ LittleFET™ PowerTrench MICROCOUPLER™ QFET MicroFET™ QS™ MicroPak™ ...