Details, datasheet, quote on part number: SM6702-30HA
PartSM6702-30HA
CategoryPower Management => DC-DC Converters
DescriptionPFM Step-up DC/DC Converter
CompanyNippon_Precision_Circuits America
DatasheetDownload SM6702-30HA datasheet
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Features, Applications

The SM6702 series are step-up DC/DC converter ICs, fabricated using NPC's Molybdenum-gate CMOS process. They incorporate reference voltage source, error amplifier, oscillator, start-up circuit, PFM (Pulse Frequency Modulation) control circuit into a single chip. The only external components required are a Coil, Diode and output smoothing capacitors to form a step-up DC/DC converter. They employ PFM voltage control circuits to achieve high efficiency, stable constant-voltage output.

FEATURES

Power dissipation: 24W at VIN = 1.5V, VOUT = 3.0V, IOUT = 100A Start-up input voltage: 0.9V (max) = 30k Output voltage: to 3.3V, available in 0.1Vstep High efficiency: 85% at VIN = 1.5V, VOUT = 3.0V, IOUT = 1mA Low ripple voltage Package: SOT89-3

APPLICATIONS

PDA, Mobile IT equipment Digital Still Camera Pager Constant-voltage sources for battery-operated equipment Local voltage sources

1. Stepwise setting with a step 0.1V in the range 3.3V is available.
Number 2 3 Name VSS OUT LX Ground Output (device supply pin) Switching pin Description
SPECIFICATIONS

Parameter LX impressed voltage OUT impressed voltage LX output current Power dissipation Operating temperature Storage temperature Symbol VLX VOUT ILX PD Topr Tstg Condition Rating to 125 Unit mW C

Rating Parameter Start-up voltage Holding voltage Current consumption Output voltage Symbol Vst Vhold ISS VOUT ILX ILXL fOSC Duty VIN = 3k VIN = 30k VIN = 3k VOUT = Vtarget - 0.1, VLX = 0.4V VOUT = VLX = 3.5V VOUT = Vtarget - 0.1 VOUT = Vtarget 0.1 2.2 Vtarget 2.7 2.8 Vtarget 3.3 Condition min Vtarget typ 8 Vtarget max 0.7 16 Vtarget mA Vtarget 0.2 A kHz A V Unit

LX output current LX leakage current Maximum oscillator frequency Switch ON duty cycle Input voltage range Vtarget: Setting output voltage


 

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