R1210N422C-TR-F datasheet, PDF

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R1210N422C-TR-F: DescriptionSwitching Controller, 0.04A, 120kHz Switching Freq-Max, CMOS, PDSO5, LEAD FREE, MINI, SOT-23, 5 PIN; CategoryPower/power management The power supply circuit; File Size246KB，21 Pages; ManufacturerRICOH Electronic Devices Co., Ltd.; Environmental Compliance

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R1210N422C-TR-F Overview

Switching Controller, 0.04A, 120kHz Switching Freq-Max, CMOS, PDSO5, LEAD FREE, MINI, SOT-23, 5 PIN

R1210N422C-TR-F Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	RICOH Electronic Devices Co., Ltd.
Parts packaging code	SOT-23
package instruction	LSSOP,
Contacts	5
Reach Compliance Code	unknown
ECCN code	EAR99
Is Samacsys	N
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	8 V
Nominal input voltage	6.5 V
JESD-30 code	R-PDSO-G5
JESD-609 code	e6
length	2.9 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	5
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output current	0.04 A
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Maximum seat height	1.4 mm
surface mount	YES
Switch configuration	BOOST
Maximum switching frequency	120 kHz
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	TIN BISMUTH
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	1.6 mm
Base Number Matches	1

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PWM Step-up DC/DC Converter Controller

R1210Nxx2x SERIES

OUTLINE

NO. EA-064-071207

The R1210Nxx2C/xx2D Series are CMOS-based PWM step-up DC/DC Converter controllers, with high

accuracy, low supply current.

Each of the R1210Nxx2x Series consists of an oscillator, a PWM circuit, a reference voltage unit, an error

amplifier, phase compensation circuit, resistors for voltage detection, a chip enable circuit, a controller against

drastic load transient and an output voltage detector. A low ripple, high efficiency step-up DC/DC converter can

be composed of this IC with only four external components, or an inductor, a diode, a transistor and a capacitor.

The R1210Nxx2x Series can detect drastic change of output voltage with a circuit controller, the load transient

response is improved.

Each of the R1210Nxx2x Series has a driver pin, or ‘EXT’ pin for external transistor. By connecting a power

transistor with low ON-resistance to EXT pin, a large current flows through an inductor, thus, large output current

can be supplied.

The built-in chip enable circuit can make the standby mode with ultra low quiescent current.

Since the package for these ICs is small SOT-23-5, high density mounting of the ICs on board is possible.

FEATURES

•

External Components .......................................Only an inductor, a diode, a capacitor, and a transistor

Standby Current ................................................Max. 0.5µA

Low Temperature-Drift Coefficient of Output Voltage Typ.

±100ppm/°C

Output Voltage ..................................................Stepwise Setting with a step of 0.1V in the range of

2.2V to 6.0V

Two choices of Basic Oscillator Frequency ......100kHz (xx2C), 180kHz (xx2D)

Output Voltage Accuracy...................................±2.5%

Small Package ..................................................SOT-23-5 (Mini-mold)

Low Ripple, Low Noise

Oscillator Start-up Voltage ................................Max. 0.8V

APPLICATIONS

•

Power source for battery-powered equipment.

•

Power source for portable communication appliances, cameras, VCRs

•

Power source for appliances of which require higher voltage than battery voltage.

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