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RS5RJ3924B-T1

Description
Switching Regulator, Voltage-mode, 0.25A, 100kHz Switching Freq-Max, CMOS, PDSO8, SOP-8
CategoryPower/power management    The power supply circuit   
File Size575KB,29 Pages
ManufacturerRICOH Electronic Devices Co., Ltd.
Download Datasheet Parametric View All

RS5RJ3924B-T1 Overview

Switching Regulator, Voltage-mode, 0.25A, 100kHz Switching Freq-Max, CMOS, PDSO8, SOP-8

RS5RJ3924B-T1 Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Parts packaging codeSOIC
package instructionLSOP,
Contacts8
Reach Compliance Codeunknown
ECCN codeEAR99
Other featuresDETECTOR VOLTAGE = 2.4 VOLT
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeVOLTAGE-MODE
Control TechnologyPULSE FREQUENCY MODULATION
Maximum input voltage10 V
Minimum input voltage1.2 V
JESD-30 codeR-PDSO-G8
JESD-609 codee0
length5.2 mm
Number of functions1
Number of terminals8
Maximum operating temperature80 °C
Minimum operating temperature-30 °C
Maximum output current0.25 A
Nominal output voltage3.9 V
Package body materialPLASTIC/EPOXY
encapsulated codeLSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
Maximum seat height1.7 mm
surface mountYES
Switch configurationBOOST
Maximum switching frequency100 kHz
technologyCMOS
Temperature levelCOMMERCIAL EXTENDED
Terminal surfaceTIN LEAD
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width4.4 mm
Base Number Matches1
VFM STEP-UP DC/DC CONVERTER WITH
VOLTAGE REGULATOR AND DETECTOR
RS5RJ SERIES
OUTLINE
NO. EA-024-0204
The RS5RJ series are CMOS-based step-up DC/DC converter ICs equipped with a voltage regulator (VR) and
a voltage detector (VD). Each of these step-up DC/DC converter ICs consists of a VFM DC/DC converter, a linear
regulator and a voltage detector. These ICs are output-voltage-fixed type regulators which function as a linear
regulator when input voltage is high, and as step-up DC/DC converter + linear regulator when input voltage is
low, by using an inductor, a diode and a capacitor as external parts for the ICs.
Since a voltage detector is built in these ICs, the potentials such as the output voltage of DC/DC converters can
be monitored.
In addition, these step-up DC/DC converter ICs are suitable for battery-powered and hand-held instruments
because internal circuits can be turned off by the chip enable function so that the standby current can be mini-
mized.
FEATURES
Low Supply Current ...........................................Typ. 15µA (RS5RJ3624A : V
IN
=3.0V,at no load)
Standby Mode .....................................................Istandby=Max. 1.0µA (RS5RJxxxxA)
Istandby=Max. 10.0µA (RS5RJxxxxB)
Low Voltage Operation Possible .......................Operating Voltage V
IN
=1.2V to 10V
High Output Voltage Accuracy .........................Fixed Output Voltage Accuracy±2.5%
High Detector Threshold Accuracy ...................±2.5%
Output Voltage can be set at User's request (refer to Selection Guide).
Voltage close to battery's voltage can be output because these ICs are of a step-up / step-down type
(Ex. a fixed voltage of 3V can be output by a 3V battery).
Built-in Protection Circuits for Lx Driver
Pin for External Driver is equipped, and a large current output can be obtained.
Small Package ....................................................8pin SOP
APPLICATIONS
Power source for cameras, camcorders, and hand-held audio equipment.
Power source for small OA apparatus such as note type personal computers,and word processors.
Power source for hand-held communication appliances such as pagers,cordless telephones, and cellular phones.
1
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