EEWORLDEEWORLDEEWORLD

Part Number

Search

R1170D331B-T1

Description
800mA LDO REGULATOR
File Size258KB,16 Pages
ManufacturerRICOH
Websitehttp://www.e-devices.ricoh.co.jp/
Download Datasheet View All

R1170D331B-T1 Overview

800mA LDO REGULATOR

2001.Jul.21
800mA LDO REGULATOR
R1170X series
s
OUTLINE
The R1170 Series are positive voltage regulator ICs by CMOS process. The R1170 Series have features of
high ripple rejection, low dropout voltage, high output voltage accuracy, low consumption current. Each of these ICs
consists of a voltage reference unit, an error amplifier, resistor net for setting output voltage, a current limit circuit at
short mode, a chip enable circuit, and thermal-shunt circuit. Output Voltage of R1170 is fixed in the IC.
Low consumption current by the merit of CMOS process and built-in transistors with low ON-resistance make
low dropout voltage and chip enable function prolong the battery life. These regulators are remarkable improvement
on the current regulators in terms of ripple rejection, input transient response, and load transient response.
Maximum Output Current is large for its compact size.
Thus, the R1170 Series are suitable for various power sources for portable appliances.
Since the packages for these ICs are the SOT-89-5 package or HSON6, high density mounting of the ICs on
boards is possible.
s
FEATURES
qUltra-Low
Supply Current
• • • • • • • •
TYP. 80µA
qLow
Standby Current
• • • • • • • • • • •
TYP. 0.1µA
qOutput
Current
• • • • • • • • • • • • • • •
MIN. 800mA(V
IN
=V
OUT
+1.0V)
qOutput
Voltage
• • • • • • • • • • • •
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V
qHigh
Output Voltage Accuracy
• • • •
±2.0%
qLow
Dropout Voltage
• • • • • • • • • • • •
TYP. 0.12V(V
OUT
=3.0V, I
OUT
=300mA)
qLine
Regulation
• • • • • • • • • • • •
TYP. 0.05%/V
qSmall
Package
• • • • • • • • • • • • • • • •
SOT-89-5, HSON6
qBuilt-in
Current Limit Circuit
qBuilt-in
Thermal Shunt Circuit
qLow
Temperature-drift Coefficient of Output Voltage
• • • • • • • • •
TYP.±100ppm/°C
s
APPLICATIONS
qLocal
Power source for Notebook PC.
qLocal
Power source for portable appliances, cameras, and videos.
qLocal
Power source for equipment of battery-use.
qLocal
Power source for home appliances.
Rev. 1.10
-1-
Discussion on the practical application of LM2576 and LM2576-ADJ series chips
Recently, I saw a heated discussion about LM2576 on the Internet. There are different opinions. Some say it is very useful, while others think it is not very good. I have made some power supplies for ...
zbz0529 Power technology
An Engineer's Guide to EMI - Specification and Measurement
EMI Test Specifications and Measurements IntroductionMost power applications must reduce electromagnetic interference (EMI) to meet requirements, and system designers must try various methods to reduc...
qwqwqw2088 Analogue and Mixed Signal
C5000 compiles SUBC instruction to implement division
Solve y=(ax^2-bx+c)/(dx+e) by programming, and put the quotient and remainder in the data memory 1000H and 1001H respectively. (1) Given a=8, b=6, c=10, d=7, e=9, x=5, find y. (2) Given a=0.9, b=0.1, ...
Aguilera Microcontroller MCU
【ST NUCLEO-H743ZI Review】(3)Ethernet to Serial Port Test
[i=s]This post was last edited by dsjsjf on 2019-3-1 11:16[/i] [url=https://en.eeworld.com/bbs/elecplay/content/103]The development board ST NUCLEO-H743ZI evaluated in this event is provided by STMicr...
dsjsjf stm32/stm8
Please help me. How to convert .brd file to Altium file
I need help from all the masters in the forum. I have a .brd file, but I can't convert it into AD17. I have no choice but to ask for help from the masters. How should I convert it? Please teach me. Th...
子成0105 PCB Design
The tax control cash register won the "first prize in China"
The "first bid in the country" for tax  -control cash registers was issued recently in Guangdong Province, and five companies won the bid. On February 15, the Guangdong Provincial Government Procureme...
dgj Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

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 © 2005-2024 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