Details, datasheet, quote on part number: R1211N002B-TR
PartR1211N002B-TR
CategoryPower Management and Supplies => IC Voltage Regulators => IC Switching Voltage Regulators => 7486197
TitleSWITCHING CONTROLLER, PDSO6
Description
CompanyRicoh Corporation
DatasheetDownload R1211N002B-TR datasheet
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Specifications 
Package TypeSOT23, Other, ROHS COMPLIANT, SOT-23, 6 PIN
Life Cycle StageACTIVE

 

Features, Applications

The R1211x Series are low supply current CMOS-based PWM step-up DC/DC controllers. R1211x does not include an internal output transistor. By simply using a power MOS, an inductor, a diode, resistors, and capacitors as external components, a high-efficiency step-up DC/DC converter can be easily configured. R1211x is available in two versions: B/D versions with an internal phase compensation and A/C versions with adjustable phase compensation with an external capacitor and resistor. The oscillator frequency can be selected from or 700kHz. The soft start function built into the controller is set to Typ. 10.5ms for 300kHz and to Typ. 9ms for 700kHz. The latch type protection circuit embedded into the device latches the external driver in the "OFF" state when the oscillator maximum duty cycle continues for a predetermined period of time setting by an external capacitor.

FEATURES

Typ. (300kHz, VFB=0V, EXT at no load) Standby Current (Istandby) Max. 1A (In standby, only B/D Versions) Input Voltage Range (VIN) to 6.0V Output Voltage Range Externally adjustable (Feedback voltage : 1.0V) Feedback Voltage Accuracy 1.5% Temp. coeff. of Feedback Voltage 150ppm/C

Oscillator Frequency (fosc)300kHz (C/D Versions) Oscillator Maximum Duty Cycle (Maxduty)Typ. 90% UVLO Detect Voltage (VUVLO)2.2V Soft Start Time (tstart)Typ. PackagesSON-6, SOT-23-6W

Halogen Free Package Q'ty per Reel Part No. SON-6 3,000 pcs R1211D002.$ -TR-FE SOT-23-6W 3,000 pcs R1211N002.$ -TR-FE

TYPICAL APPLICATIONS

: Select from (.A.) oscillator frequency of 700kHz, external phase compensation, (.B.) oscillator frequency of 700kHz, internal phase compensation with standby function, (.C.) oscillator frequency of 300kHz, external phase compensation or (.D.) oscillator frequency of 300kHz, internal phase compensation with standby function.

) The tab suspension leads on back side are substrate level (GND).
APPLICATIONS

Power source for hand-held equipment Power source for LCD and CCD Power source for automotive application

Ricoh presented with the Japan Management Quality Award for 1999.

Ricoh continually strives to promote customer satisfaction, and shares the achievements of its management quality improvement program with people and society.

The Ricoh Group was awarded ISO 14001 certification, which is an international standard for environmental management systems, at both its domestic and overseas production facilities. Our current aim is to obtain ISO 14001 certification for all of our business offices.

Ricoh completed the organization of the Lead-free production for all of our products. After Apr. 2006, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.


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