Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

R1221N33AF-TR Datasheet (PDF) - RICOH electronics devices division

R1221N33AF-TR Datasheet PDF - RICOH electronics devices division
Part # R1221N33AF-TR
Download  R1221N33AF-TR Download

File Size   218.97 Kbytes
Page   21 Pages
Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division
Description Step-down DC/DC Converter with Voltage Detector

R1221N33AF-TR Datasheet (PDF)

Go To PDF Page Download Datasheet
R1221N33AF-TR Datasheet PDF - RICOH electronics devices division

Part # R1221N33AF-TR
Download  R1221N33AF-TR Click to download

File Size   218.97 Kbytes
Page   21 Pages
Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division
Description Step-down DC/DC Converter with Voltage Detector

R1221N33AF-TR Datasheet (HTML) - RICOH electronics devices division

Back Button R1221N33AF-TR Datasheet HTML 1Page - RICOH electronics devices division R1221N33AF-TR Datasheet HTML 2Page - RICOH electronics devices division R1221N33AF-TR Datasheet HTML 3Page - RICOH electronics devices division R1221N33AF-TR Datasheet HTML 4Page - RICOH electronics devices division R1221N33AF-TR Datasheet HTML 5Page - RICOH electronics devices division R1221N33AF-TR Datasheet HTML 6Page - RICOH electronics devices division R1221N33AF-TR Datasheet HTML 7Page - RICOH electronics devices division R1221N33AF-TR Datasheet HTML 8Page - RICOH electronics devices division R1221N33AF-TR Datasheet HTML 9Page - RICOH electronics devices division R1221N33AF-TR Datasheet HTML 10Page - RICOH electronics devices division Next Button 

R1221N33AF-TR Product details

OUTLINE
The R1221N Series are PWM step-down DC/DC Converter controllers embedded with a voltage detector, with low supply current by CMOS process.
Each step-down DC/DC converter in these ICs consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a soft-start circuit, a protection circuit, a PWM/VFM alternative circuit, a chip enable circuit, and resistors for voltage detection. A low ripple, high efficiency step-down DC/DC converter can be composed of this IC with only four external components, or a power-transistor, an inductor, a diode and a capacitor.
The output voltage of DC/DC converter can be supervised by the built-in voltage detector.
With a PWM/VFM alternative circuit, when the load current is small, the operation turns into the VFM oscillator from PWM oscillator automatically, therefore the efficiency at small load current is improved.

FEATURES
● Wide Range of Input Voltage · · · · · · · · · · · · · 2.3V to 13.2V
● Built-in Soft-start Function and two choices of Protection Function(Latch-type or Reset-type)
● Two choices of Oscillator Frequency · · · · · · · · · · 300kHz, 500kHz
● High Efficiency · · · · · · · · · · · · · · · · · · · · · · TYP. 90%
● Standby Current · · · · · · · · · · · · · · · · · · · · · TYP. 0µA
● Setting Output Voltage · · · · · · · · · · · · · · · · · Stepwise setting with a step of 0.1V in the range of 1.5V to 5.0V
● High Accuracy Output Voltage · · · · · · · · · · · · · · ±2.0%
● Setting Detector Threshold Voltage · · · · · · · · · · · Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V
● High Accuracy Detector Threshold Voltage· · · · · · · ±2.0%
● Low Temperature-Drift Coefficient of Output Voltage · TYP. ±100ppm/°C

APPLICATIONS
● Power source for hand-held communication equipment, cameras, video instruments such as VCRs, camcorders.
● Power source for battery-powered equipment.
● Power source for household electrical appliances.




Similar Part No. - R1221N33AF-TR

ManufacturerPart #DatasheetDescription
logo
RICOH electronics devic...
R1223N RICOH-R1223N Datasheet
207Kb / 19P
   PWM/VFM Step-down DC/DC Converter
R1223N152A RICOH-R1223N152A Datasheet
207Kb / 19P
   PWM/VFM Step-down DC/DC Converter
R1223N152A-TR RICOH-R1223N152A-TR Datasheet
207Kb / 19P
   PWM/VFM Step-down DC/DC Converter
R1223N152C RICOH-R1223N152C Datasheet
207Kb / 19P
   PWM/VFM Step-down DC/DC Converter
R1223N152C-TR RICOH-R1223N152C-TR Datasheet
207Kb / 19P
   PWM/VFM Step-down DC/DC Converter
More results


Similar Description - R1221N33AF-TR

ManufacturerPart #DatasheetDescription
logo
Micon Design Technology...
MDT763320 MDTIC-MDT763320 Datasheet
149Kb / 5P
   Step-up DC/DC Converter with Voltage Detector
MDT763020 MDTIC-MDT763020 Datasheet
127Kb / 5P
   Step-up DC/DC Converter with Voltage Detector
MDT762720 MDTIC-MDT762720 Datasheet
128Kb / 5P
   Step-up DC/DC Converter with Voltage Detector
MDT763022 MDTIC-MDT763022 Datasheet
40Kb / 4P
   Step-up DC/DC Converter with Voltage Detector
logo
Texas Instruments
TPS57060-Q1 TI1-TPS57060-Q1_16 Datasheet
2Mb / 51P
[Old version datasheet]   Step-Down DC-DC Converter With
logo
Holtek Semiconductor In...
HT7627 HOLTEK-HT7627 Datasheet
77Kb / 6P
   PFM Step-up DC/DC Converter & Voltage Detector
logo
Torex Semiconductor
XC9510 TOREX-XC9510_1 Datasheet
2Mb / 36P
   Synchronous Step-Down DC/DC Converter With Built-In LDO Regulator Plus Voltage Detector
XCM524 TOREX-XCM524 Datasheet
1Mb / 52P
   600mA Synchronous Step-Down DC/DC Converter 500mA LDO with Delay Function Voltage Detector
XC9508 TOREX-XC9508 Datasheet
2Mb / 36P
   Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator plus Voltage Detector
XC9510 TOREX-XC9510_2 Datasheet
2Mb / 36P
   Synchronous Step-Down DC/DC Converter With Built-In LDO Regulator Plus Voltage Detector
More results



Link URL



Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com