EEWORLDEEWORLDEEWORLD

Part Number

Search

RS5RM1949B-T2

Description
Switching Regulator, Voltage-mode, 0.25A, 60kHz Switching Freq-Max, CMOS, PDSO8, SOP-8
CategoryPower/power management    The power supply circuit   
File Size586KB,29 Pages
ManufacturerRICOH Electronic Devices Co., Ltd.
Download Datasheet Parametric View All

RS5RM1949B-T2 Overview

Switching Regulator, Voltage-mode, 0.25A, 60kHz Switching Freq-Max, CMOS, PDSO8, SOP-8

RS5RM1949B-T2 Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerRICOH Electronic Devices Co., Ltd.
Parts packaging codeSOIC
package instructionLSOP,
Contacts8
Reach Compliance Codeunknow
ECCN codeEAR99
Other featuresDETECTOR VOLTAGE = 4.9 VOLT
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH 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 voltage1.9 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 frequency60 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
PWM STEP-UP DC/DC CONVERTER WITH
VOLTAGE REGULATOR AND DETECTOR
RS5RM SERIES
OUTLINE
NO. EA-018-0311
The RS5RM 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 PWM 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. 55µA (RS5RM3624A : V
IN
=3.0V,at no load)
• Standby Mode.....................................................Istandby=Max. 1.0µA (RS5RMxxxxA)
Istandby=Max. 10.0µA (RS5RMxxxxB)
• Low Voltage Operation Possible .......................Operating Voltage V
IN
=1.2V to 10V
• High Output Voltage Accuracy .........................Fixed Output Voltage Accuracy±2.5%
• High Voltage Detection 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).
• Soft Start Function, built-in Protection Circuits for Lx Driver
• Phase Compensation Circuits built in
• Pin for External Driver is equipped, and a large current output can be obtained.
• Small Packages ..................................................8pin SOP
APPLICATIONS
• Power source for cameras, camcorders, and hand-held audio equipment.
• Power source for small OA apparatus such as note book personal computers,and word processors.
• Power source for hand-held communication appliances such as pagers,cordless telephones, and cellular phones.
1
Can I dig a groove in altium designer without drilling through it? Thank you.
I want to dig a groove with a depth of 0.5mm and a plate thickness of 2MM...
yuan879688049 PCB Design
Fujitsu FRAM Experience Submission
Although I haven't received the sample yet, I am still very grateful to Fujitsu. If the price is reasonable and the performance is reliable, we will still use it frequently in future research and deve...
xiantaosongyang Integrated technical exchanges
EEWORLD University Hall--Detailed explanation of algorithms Stanford University classic video course
Algorithm detailed explanation Stanford University classic video course : https://training.eeworld.com.cn/course/27336The first volume of the four-part series on algorithm explanation explains the bas...
桂花蒸 Integrated technical exchanges
An error occurred while running the program. Please help!
My program can be compiled and linked successfully, but when I run it, it says "No valid program is currently loaded into memory. Do you still want to run?" What's going on? I'm using assembly languag...
lkangj1987 Analogue and Mixed Signal
Online Discussion
I have been in the forum for almost two months and I feel the atmosphere here is really great. However, it is still inconvenient to discuss some issues online sometimes. I suggest setting up an online...
cuizhihao Suggestions & Announcements
Confession of a duck that lays red-heart eggs! (The truth is in it)
Confession of a duck that lays red-heart eggs! ( The truth is in it )News event: Not long ago, reporters investigated some of the " red-heart duck eggs " sold in the Beijing market, which were labeled...
2345 Talking

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 232  2798  2713  2645  2223  5  57  55  54  45 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号