Details, datasheet, quote on part number: R1200L003A-TR
PartR1200L003A-TR
CategorySemiconductors => Power Management ICs => Voltage Regulators - Switching Regulators => 8821412
TitleVoltage Regulators - Switching Regulators PWM Step-up DCDC Converter for PMOLED
Description
CompanyElectronic Devices Inc.
DatasheetDownload R1200L003A-TR datasheet
Specifications 
Product CategoryVoltage Regulators - Switching Regulators
ManufacturerRicoh Electronics
Mounting StyleSMD/SMT
Package/CaseDFN1616-6
Output Voltage1 V
Output Current3 uA
Number of Outputs1 Output
Input Voltage MAX5.5 V
Input Voltage MIN2.3 V
Switching Frequency1.2 MHz
Maximum Operating Temperature+ 85 C
SeriesR1200L
BrandRicoh Electronic Devices Company
Input Voltage2.3 V to 5.5 V
Minimum Operating Temperature- 40 C
Operating Supply Current500 uA
PackagingReel
ShutdownShutdown
Factory Pack Quantity5000
R1200L003A-TR photo

 

Features, Applications

STEP-UP DC/DC CONVERTER FOR OLED BACK LIGHT with SHUTDOWN FUNCTION

R1200x series are CMOS-based control type step-up DC/DC converter with low supply current ICs. Each of these ICs consists of a Nch MOSFET, NPN transistor, an oscillator, PWM comparator, a voltage reference unit, an error amplifier, a current limit circuit, an under voltage lockout circuit (UVLO), an over voltage protection circuit (OVP), and a soft start circuit. As the external components, an inductor, resistances or capacitors are necessary to make a constant output voltage of step-up DC/DC converter with the R1200x. At standby mode, the NPN transistor can separate the output from the input. During the situation of that, there are two versions. R1200xxxxA: the output of VOUT is generated 0V by the low resistance (with the auto discharge function). R1200xxxxB does not generate the output of VOUT (without the auto discharge function). The soft-start time (Typ. 1.5ms) and the maximum duty cycle (Typ. 91%) are set internally. For the protection functions of R1200x series are the current limit function of the LX peak current, the OVP function for detection the over voltage of output and the UVLO function for protective miss-operation by the low voltage. (The threshold of OVP is selectable from or 21V.) Since the packages for these ICs are DFN(PLP)1820-6, SOT-23-6 and WLCSP-6-P1, therefore high density mounting of the ICs on boards is possible.

FEATURES

Supply Current............................................................. Typ. 500A Standby Current........................................................... Max. 3A Input Voltage Range.................................................... to 5.5V Feedback Voltage........................................................ 1.0V (Externally adjustable) Feedback Voltage Accuracy......................................... 1.5% Temperature-Drift Coefficient of Feedback Voltage..... 150ppm/C Oscillator Frequency.................................................... Typ. 1.2MHz Maximum Duty Cycle................................................... Typ. 91% Switch ON Resistance................................................. Typ. 1.35 UVLO Detector Threshold............................................ Typ. 2.0V Soft-start Time.............................................................. Typ. 1.5ms Lx Current Limit Protection..........................................Typ. 700mA OVP Detector Threshold............................................ 19V, 21V Switching Control......................................................... PWM Built-in a rectifier NPN transistor, at standby mode, complete shutdown is possible. Built-in Auto discharge function...................................A version Packages..................................................................... SOT-23-6, WLCSP-6-P1 Ceramic capacitors are recommended........................ 1F

APPLICATION
OLED power supply for portable equipment White LED Backlight for portable equipment

UVLO Error Amp PWM Comp R S Vref OSC Soft Start Slope Compensation Current Protection Current Sense Chip Enable Q Switching Control OVP

The OVP threshold voltage, auto discharge function, and the package for the ICs can be selected at the user's request. Product Name R1200Kxxx-TR R1200Nxxx-TR-FE Package DFN(PLP)1820-6 SOT-23-6 Quantity per Reel 5,000 pcs 5,000 pcs 5,000 pcs 3,000 pcs Pb Free Yes Halogen Free Yes

xxx : Designation of OVP detector threshold (001) 17V threshold of OVP (002) 19V threshold of OVP (003) 21V threshold of OVP : The auto discharge function at off state are options as follows. (A) with auto discharge function at off state (B) without auto discharge function at off state


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