R1210N332D RICOH Co.,Ltd., R1210N332D Datasheet
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R1210N332D
Manufacturer Part Number
R1210N332D
Description
Manufacturer
RICOH Co.,Ltd.
Specifications of R1210N332D
Date_code
05+
Packing_info
SOT-153
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R1210N332D-TR-F
Manufacturer:
RICOH/理光
Quantity:
20 000
R1210Nxx1x SERIES
OUTLINE
current.
amplifier, phase compensation circuit, resistors for voltage detection, a chip enable circuit. Further, includes a
controller against drastic load transient, a control transistor with low ON-Resistance, ‘L
circuit for L
oscillator frequency each. A low ripple, high efficiency step-up DC/DC converter can be composed of this IC with
only three external components, or an inductor, a diode and a capacitor.
response is improved compared with current model, furthermore the R1210Nxx1A Series have another function,
that is, when the load current is small, oscillator frequency is decreased by a circuit for switching oscillator
frequency from Typ. 100kHz to 35kHz, therefore, supply current is reduced.
FEATURES
APPLICATIONS
The R1210Nxx1x Series are CMOS-based PWM step-up DC/DC Converter, with high accuracy, low supply
Each of the R1210Nxx1x Series consists of an oscillator, a PWM circuit, a reference voltage unit, an error
The R1210N Series can detect drastic change of output voltage with a circuit controller. The load transient
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.
• External Components .......................................Only an inductor, a diode, and a capacitor
• 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
• Two choices of Basic Oscillator Frequency ......100kHz (xx1A/C), 180kHz (xx1D)
• Output Voltage Accuracy...................................±2.5%
• Small Package ..................................................SOT-23-5 (Mini-mold)
• High Efficiency ..................................................Typ. 88% (V
• Low Ripple, Low Noise
• Built-in a driver transistor with low on-resistance
• Start-up Voltage.................................................Max. 0.9V
• Basic Frequency change-over circuit (only for xx1A type) from Typ. 100kHz to 35kHz
• 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.
X
switch and an output voltage detector. R1210Nxx1A Series contain further a circuit for changeover
PWM Step-up DC/DC Converter
2.2V to 6.0V (xx1C/D), 2.2V to 3.5V (xx1A)
IN
=Set Output Voltage×0.6 [V], I
X
switch’, and a protection
NO. EA-075-071207
OUT
=10mA)
1