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R1210N222D-TR-FE

R1210N222D-TR-FE

  • 厂商:

    RICOH(理光)

  • 封装:

    SC74A

  • 描述:

    8V INPUT PWM STEP-UP DCDC CONVER

  • 详情介绍
  • 数据手册
  • 价格&库存
R1210N222D-TR-FE 数据手册
R1210Nxx2x SERIES PWM Step-up DC/DC Controller NO.EA-064-181214 OUTLINE The R1210Nxx2C/xx2D Series are CMOS-based PWM step-up DC/DC Converter controllers, with high accuracy, low supply current. Each of the R1210Nxx2x Series consists of an oscillator, a PWM circuit, a reference voltage unit, an error amplifier, phase compensation circuit, resistors for voltage detection, a chip enable circuit, a controller against drastic load transient and an output voltage detector. A low ripple, high efficiency step-up DC/DC converter can be composed of this IC with only four external components, or an inductor, a diode, a transistor and a capacitor. The R1210Nxx2x Series can detect drastic change of output voltage with a circuit controller, the load transient response is improved. Each of the R1210Nxx2x Series has a driver pin, or ‘EXT’ pin for external transistor. By connecting a power transistor with low ON-resistance to EXT pin, a large current flows through an inductor, thus, large output current can be supplied. 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. FEATURES          External Components ....................................... Only an inductor, a diode, a capacitor, and a transistor Standby Current ................................................ Max. 0.5A Low Temperature-Drift Coefficient of Output Voltage Typ.100ppm/C Output Voltage .................................................. Stepwise Setting with a step of 0.1V in the range of 2.2V to 6.0V Two choices of Basic Oscillator Frequency ...... 100kHz (xx2C), 180kHz (xx2D) Output Voltage Accuracy................................... 2.5% Small Package .................................................. SOT-23-5 Low Ripple, Low Noise Oscillator Start-up Voltage ................................ Max. 0.8V APPLICATIONS  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. 1 R1210Nxx2x BLOCK DIAGRAMS Vref Circuit EXT 5 Phase Comp. Buffer 2 VOUT 4 GND - PWM Controller OSC + + + Chip Enable 1 CE SELECTION GUIDE In the R1210N Series, the output voltage, the oscillator frequency for the ICs can be selected at the user’s request. The selection can be made by designating the part number as shown below;  Product Name Package Quantity per Reel Pb Free Halogen Free R1210Nxx2-TR-FE SOT-23-5 3,000 pcs Yes Yes xx : Setting Output Voltage(VOUT) Stepwise setting with a step of 0.1V in the range of 2.2V(22)to 6.0V(60) : Designation of Oscillator Frequency C:100kHz D:180kHz 2 R1210Nxx2x PIN CONFIGURATION SOT-23-5 5 4 (mark side) 1 2 3 PIN DESCRIPTIONS Pin No Symbol Pin Description 1 CE Chip Enable Pin 2 VOUT Pin for Output Voltage 3 NC No Connection 4 GND Ground Pin 5 EXT External Transistor Drive Pin ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit VOUT VOUT Pin Output Voltage -0.3 to 9.0 V VEXT EXT Pin Output Voltage -0.3 to VOUT0.3 V VCE CE Pin Input Voltage -0.3 to 9.0 V IEXT EXT Pin Output Current 40 mA PD Power Dissipation 420 mW Topt Operating Temperature Range 40 to 85 C Tstg Storage Temperature Range 55 to 125 C *1) For Power Dissipation, please refer to PACKAGE INFORMATION. ABSOLUTE MAXIMUM RATINGS Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for both device and system using the device in the field. The functional operation at or over these absolute maximum ratings is not assured. 3 R1210Nxx2x ELECTRICAL CHARACTERISTICS  R1210Nxx2x Topt=25°C Symbol VOUT Item Output Voltage Conditions VIN=VSET0.6, IOUT=1mA VIN Maximum Input Voltage VOUT/ T Step-up Output Voltage Temperature Coefficient 40C Vstart Start-up Voltage VIN0V2V Istandby  Topt   85C  VOUT= VSET0.96 EXT at no load 2.5V   VSET   3.0V VOUT= VSET0.96 EXT at no load 3.1V   VSET   3.9V Supply Current 1 VOUT= VSET0.96 EXT at no load 4.0V   VSET   4.4V VOUT= VSET0.96 EXT at no load 4.5V   VSET   4.9V VOUT= VSET0.96 EXT at no load 5.0V   VSET   5.4V VOUT= VSET0.96 EXT at no load 5.5V   VSET   6.0V IDD2 4 Typ. 0.975 Supply Current 2 Max. Unit 1.025 V 8 V 100 Supply Current 3(Standby) VOUT=6.5V,VCE0V VOUT= VSET0.96 EXT at no load  VSET   2.4V 2.2V  IDD1 Min. ppm/C 0.8 V 0.5 A 18 35 23 45 20 40 25 50 25 50 30 60 30 60 35 70 35 70 40 80 45 90 50 100 50 100 55 110 10 15 15 22 VOUT=VCE=VSET+0.5 A (xx2C) A (xx2D) A (xx2C) A (xx2D) A (xx2C) A (xx2D) A (xx2C) A (xx2D) A (xx2C) A (xx2D) A (xx2C) A (xx2D) A (xx2C) A (xx2D) A (xx2C) A (xx2D) R1210Nxx2x Symbol Item Conditions Min. Typ.   VSET   2.5V IEXTH fosc  fosc/ T Maxdty IEXTL EXT “H” Output Current Maximum Oscillator Frequency Oscillator Frequency Temperature Coefficient Oscillator Maximum Duty Cycle EXT “L” Output Current 2.2V VEXT=VOUT-0.4V 2.6V   VSET   3.0V VEXT=VOUT-0.4V  VSET   3.5V 3.1V  VEXT=VOUT-0.4V 3.6V   VSET   4.0V VEXT=VOUT-0.4V 4.1V   VSET   4.5V VEXT=VOUT-0.4V 4.6V   VSET   5.0V VEXT=VOUT-0.4V 5.1V   VSET   5.5V VEXT=VOUT-0.4V 5.6V   VSET   6.0V VEXT=VOUT-0.4V Max. Unit -1.0 mA -2.0 mA -2.5 mA -3.0 mA -3.5 mA -4.0 mA -4.5 mA -5.0 mA 80 100 120 144 180 216 VOUT=VCE=VSET0.96 40C 70 kHz (xx2D) 0.5 kHz/C 0.6 kHz/C (xx2C)   Topt   85C VOUT=VCE=VSET0.96, (VEXT “H” Side) kHz (xx2C) 85 (xx2D) 97 % 2.2V  VSET   2.5V,VEXT=0.4V  1.0 mA 2.6V   VSET   3.0V,VEXT=0.4V 2.0 mA 3.1V   VSET   3.5V,VEXT=0.4V 2.5 mA 3.6V   VSET   4.0V,VEXT=0.4V 3.0 mA 4.1V   VSET   4.5V,VEXT=0.4V 3.5 mA 4.6V   VSET   5.0V,VEXT=0.4V 4.0 mA 5.1V   VSET   5.5V,VEXT=0.4V 4.5 mA 5.6V   VSET   6.0V,VEXT=0.4V 5.0 mA 0.9 V VCEH CE “H” Input Voltage VOUT=VSET0.96 VCEL CE “L” Input Voltage VOUT=VSET0.96 ICEH CE “H” Input Current VOUT=VCE=6.5V -0.1 ICEL CE “L” Input Current VIN=6.5V, VCE=0V -0.1 0.3 V 0.0 0.1 A 0.0 0.1 A *Note: VSET means setting Output Voltage. 5 R1210Nxx2x RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS) All of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. The semiconductor devices cannot operate normally over the recommended operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. And the semiconductor devices may receive serious damage when they continue to operate over the recommended operating conditions. 6 R1210Nxx2x TEST CIRCUITS SD Cb L Tr EXT VOUT Rb CL V EXT VOUT C VIN GND GND CE CE OSCILLOSCOPE Test Circuit 1 EXT Test Circuit 2 EXT VOUT VOUT A A GND Test Circuit 3 EXT GND CE Test Circuit 4 VOUT EXT GND CE VOUT C CE GND OSCILLOSCOPE Test Circuit 5 Inductor (L) : 27H (Sumida Electric Co., Ltd. CD104NP) Diode (SD) : RB491D (Rohm, Schottky Type) Capacitor (CL) : 47F2 (Tantalum Type) Transistor (Tr) : 2SD1628G Base Resistor (Rb) : 300 Base Capacitor (Cb) : 0.01F(Ceramic Type) CE OSCILLOSCOPE Test Circuit 6 The typical characteristics were obtained by use of these test circuits. Test Circuit 1 Test Circuit 2 Test Circuit 3 Test Circuit 4 Test Circuit 5 Test Circuit 6 : Typical Characteristics 1) 2) 3) 4) 5) : Typical Characteristics 9) 10) : Typical Characteristics 6) 7) : Typical Characteristics 8) : Typical Characteristics 11) : Typical Characteristics 12) 7 R1210Nxx2x TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current R1210N302C R1210N302D L:27μH L:27μH 3.2 Output Voltage VOUT(V) Output Voltage VOUT(V) 3.2 VIN:1.5V VIN:2.0V 3.1 VIN:0.9V VIN:2.5V 3.0 2.9 VIN:1.5V 3.1 VIN:0.9V VIN:2.5V 3.0 2.9 2.8 2.8 0 200 400 600 Output Current IOUT (mA) 0 800 R1210N502C 200 400 600 Output Current IOUT (mA) 5.4 L:27μH 5.4 VIN:3.0V 5.0 VIN:4.0V 4.8 VIN:2.0V Output Voltage VOUT(V) VIN:2.0V 5.2 800 R1210N502D L:27μH Output Voltage VOUT(V) VIN:2.0V VIN:1.5V 4.6 5.2 5.0 VIN:3.0V VIN:4.0V 4.8 VIN:1.5V 4.6 4.4 4.4 0 200 400 600 Output Current IOUT (mA) 0 800 200 400 600 Output Current IOUT (mA) 800 2) Efficiency vs. Output Current R1210N302C R1210N302D L:27μH L:27μH 100 100 VIN:2.5V 80 Efficiency η (%) Efficiency η (%) VIN:2.5V VIN:2.0V 60 VIN:1.5V 40 VIN:0.9V VIN:2.0V 60 VIN:1.5V 40 VIN:0.9V 20 20 0 0 0 8 80 200 400 600 Output Current IOUT (mA) 800 0 200 400 600 Output Current IOUT (mA) 800 R1210Nxx2x R1210N502C R1210N502D L:27μH L:27μH 100 100 80 VIN:4.0V Efficiency η (%) Efficiency η (%) VIN:4.0V VIN:3.0V 60 VIN:1.5V VIN:2.0V 40 20 80 VIN:3.0V 60 VIN:2.0V VIN:1.5V 40 20 0 0 0 200 400 600 Output Current IOUT (mA) 800 0 200 400 600 Output Current IOUT (mA) 800 3) Ripple Voltage vs. Output Current R1210N302C R1210N302D L:27μH 280 Ripple Voltage Vripple (mV) Ripple Voltage Vripple (mV) L:27μH 240 VIN:1.5V 200 VIN:0.9V 160 120 VIN:2.5V 80 40 0 280 240 VIN:1.5V 200 160 VIN:0.9V 120 VIN:2.5V 80 40 0 0 200 400 600 Output Current IOUT (mA) 800 0 200 400 600 Output Current IOUT (mA) R1210N502C R1210N502D 280 240 VIN:1.5V 160 VIN:3.0V 120 VIN:4.0V 80 L:27μH Ripple Voltage Vripple (mV) Ripple Voltage Vripple (mV) L:27μH 200 800 40 0 280 240 VIN:1.5V 200 VIN:0.9V VIN:3.0V 160 120 VIN:4.0V 80 40 0 0 200 400 600 Output Current IOUT (mA) 800 0 200 400 600 Output Current IOUT (mA) 800 9 R1210Nxx2x 4) Start-up Voltage/ Hold-on Voltage vs. Output Current (Topt=25°C) R1210N302C R1210N302D L:27µH L:27µH 1.6 Start-up/Hold-on Voltage Vstart/Vhold(V) Start-up/Hold-on Voltage Vstart/Vhold(V) 1.6 Vstart 1.2 0.8 Vhold 0.4 0.0 Vstart 1.2 0.8 0.4 Vhold 0.0 0 20 40 60 80 Output Current IOUT(mA) 100 0 20 R1210N502C 40 60 80 Output Current IOUT (mA) R1210N502D L:27µH L:27µH 1.6 1.6 Start-up/Hold-on Voltage Vstart/Vhold(V) Start-up/Hold-on Voltage Vstart/Vhold(V) 100 Vhold 1.2 Vstart 0.8 0.4 0.0 Vstart 1.2 0.8 Vhold 0.4 0.0 0 20 40 60 80 Output Current IOUT (mA) 100 0 20 40 60 80 Output Current IOUT (mA) 100 5) Output Voltage vs. Temperature R1210N302C R1210N302D L:27µH L:27µH 3.10 3.05 2.90 -50 10 IOUT:30mA IOUT:100mA 3.00 2.95 Output Voltage VOUT(V) Output Voltage VOUT(V) 3.10 IOUT:0mA -25 0 25 50 75 Temperature Topt(°C) 100 3.05 IOUT:30mA IOUT:100mA 3.00 IOUT:0mA 2.95 2.90 -50 -25 0 25 50 75 Temperature Topt(°C) 100 R1210Nxx2x R1210N502C R1210N502D L:27µH L:27µH 5.15 Output Voltage VOUT(V) Output Voltage VOUT(V) 5.15 5.10 5.05 IOUT:30mA IOUT:100mA 5.00 4.95 IOUT:0mA 4.90 4.85 -50 -25 0 25 50 75 Temperature Topt(°C) 5.10 5.05 IOUT:100mA 5.00 4.95 IOUT:0mA 4.90 4.85 -50 100 IOUT:30mA -25 0 25 50 75 Temperature Topt(°C) 100 6) Supply Current 1 vs. Temperature R1210N302C R1210N302D 40 Supply Current Iss1(μA) Supply Current Iss1(μA) 40 30 20 10 0 -50 -25 0 25 50 75 Temperature Topt(°C) 30 20 10 0 -50 100 -25 R1210N502C 80 Supply Current Iss1(μA) Supply Current Iss1(μA) 100 R1210N502D 80 60 40 20 0 -50 0 25 50 75 Temperature Topt(°C) -25 0 25 50 75 Temperature Topt(°C) 100 60 40 20 0 -50 -25 0 25 50 75 Temperature Topt(°C) 100 11 R1210Nxx2x 7) Supply Current 2 vs. Temperature R1210N302C R1210N302D 25 Supply Current2 Iss2 (μA) Supply Current2 Iss2(μA) 25 60 15 10 5 0 -50 -25 0 25 50 75 Temperature Topt(°C) 60 15 10 5 0 -50 100 -25 R1210N502C R1210N502D Supply Current2 Iss2 (μA) Supply Current2 Iss2 (μA) 100 25 25 60 15 10 5 0 -50 0 25 50 75 Temperature Topt(°C) -25 0 25 50 75 Temperature Topt(°C) 60 15 10 5 0 -50 100 -25 0 25 50 75 Temperature Topt(°C) 100 8) Supply Current 3 vs. Temperature R1210N302D Supply Current3 Istandby(μA) Supply Current 3 Istandby (μA) R1210N302C 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 -50 -25 0 25 50 Temperature Topt(°C) 12 75 100 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 -50 -25 0 25 50 75 Temperature Topt(°C) 100 R1210Nxx2x R1210N502D Supply Current3 Istandby(μA) Supply Current3 Istandby(μA) R1210N502C 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 -50 -25 0 25 50 75 Temperature Topt(°C) 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 -50 100 -25 0 25 50 75 Temperature Topt(°C) 100 9) Oscillator Frequency vs. Temperature R1210N302D Oscillator Frequency fosc(kHz) Oscillator Frequency fosc(kHz) R1210N302C 300 250 200 150 100 50 0 -50 -25 0 25 50 75 Temperature Topt(°C) 300 250 200 150 100 50 0 -50 100 -25 250 200 150 100 50 0 -50 -25 0 25 50 75 Temperature Topt(°C) 100 R1210N502D 300 Oscillator Frequency fosc(kHz) Oscillator Frequency fosc(kHz) R1210N502C 0 25 50 75 Temperature Topt(°C) 100 300 250 200 150 100 50 0 -50 -25 0 25 50 75 Temperature Topt(°C) 100 13 R1210Nxx2x 10) Maximum Duty Cycle vs. Temperature R1210N302D Maximum Duty Cycle Duty(%) Maximum Duty Cycle Duty(%) R1210N302C 100 90 80 70 60 50 40 -50 -25 0 25 50 75 Temperature Topt(°C) 100 90 80 70 60 50 40 -50 100 -25 90 80 70 60 50 40 -50 -25 0 25 50 75 Temperature Topt(°C) 100 R1210N502D 100 Maximum Duty Cycle Duty(%) Maximum Duty Cycle Duty(%) R1210N502C 0 25 50 75 Temperature Topt(°C) 100 90 80 70 60 50 40 -50 100 -25 0 25 50 75 Temperature Topt(°C) 100 11) EXT “H” Output Current vs. Temperature R1210N302C R1210N302D 20 EXT "H" Output Current IEXTH (mA) EXT "H" Output Current IEXTH (mA) 20 15 15 10 10 5 0 -50 14 -25 0 25 50 75 Temperature Topt(°C) 100 5 0 -50 -25 0 25 50 75 Temperature Topt(°C) 100 R1210Nxx2x R1210N502C R1210N502D 20 EXT "H" Output Current IEXTH (mA) EXT "H" Output Current IEXTH (mA) 20 15 15 10 10 5 0 -50 -25 0 25 50 75 Temperature Topt(°C) 5 0 -50 100 -25 0 25 50 75 Temperature Topt(°C) 100 12) EXT “L” Output Current vs. Temperature R1210N302C R1210N302D 20 EXT "L" Output Current IEXTL (mA) EXT "L" Output Current IEXTL (mA) 20 15 15 10 10 5 0 -50 -25 0 25 50 75 Temperature Topt(°C) 5 0 -50 100 -25 R1210N502C 20 EXT "L" Output Current IEXTL (mA) EXT "L" Output Current IEXTL (mA) 100 R1210N502D 20 15 15 10 10 5 0 -50 0 25 50 75 Temperature Topt(°C) -25 0 25 50 75 Temperature Topt(°C) 100 5 0 -50 -25 0 25 50 75 Temperature Topt(°C) 100 15 R1210Nxx2x 13) CE “H” Input Voltage vs. Temperature R1210N602C R1210N602D 0.9 CE "H" Input Voltage VCEH (V) CE "H" Input Voltage VCEH (V) 0.9 0.8 0.7 0.6 0.5 0.4 0.3 -50 -25 0 25 50 75 Temperature Topt(°C) 0.8 0.7 0.6 0.5 0.4 0.3 -50 100 -25 0 25 50 75 Temperature Topt(°C) 100 14) CE “L” Input Voltage vs. Temperature R1210N602C R1210N602D 0.9 CE "L" Input Voltage VCEL (V) CE "L" Input Voltage VCEL (V) 0.9 0.8 0.7 0.6 0.5 0.4 0.3 -50 -25 0 25 50 75 Temperature Topt(°C) 100 0.8 0.7 0.6 0.5 0.4 0.3 -50 -25 0 25 50 75 Temperature Topt(°C) 100 15) Output Waveform at Power-on (Topt=25°C) ((R1210N502C)) (VIN: 0V3.0V) IOUT: 1mA IOUT: 100mA VIN 2V/div VOUT M50.0ms 16 VIN 2V/div VOUT M50.0ms R1210Nxx2x ((R1210N502D)) (VIN: 0V3.0V) IOUT: 1mA IOUT: 100mA VIN VIN 2V/div 2V/div VOUT VOUT M50.0ms M50.0ms ((R1210N302C)) (VIN: 0V1.5V) IOUT: 1mA IOUT: 100mA VIN VIN 1V/div 1V/div VOUT VOUT M50.0ms M50.0ms ((R1210N302D)) (VIN: 0V1.5V) IOUT: 1mA IOUT: 100mA VIN VIN 1V/div VOUT M50.0ms 1V/div VOUT M50.0ms 17 R1210Nxx2x 16) Load Transient Response (Topt=25°C) ((R1210N502C)) (VIN: 3.0V,IOUT:1mA200mA) IOUT IOUT 200mV 200mV VOUT VOUT M50.0ms M50.0ms ((R1210N502D)) (VIN: 3.0V,IOUT:1mA200mA) IOUT IOUT 200mV 200mV VOUT VOUT M50.0ms M50.0ms ((R1210N302C)) (VIN: 1.5V,IOUT:1mA100mA) IOUT IOUT 100mV 100mV VOUT M50.0ms 18 VOUT M50.0ms R1210Nxx2x ((R1210N302D)) (VIN: 1.5V,IOUT:1mA100mA) IOUT IOUT 100mV 100mV VOUT M50.0ms VOUT M50.0ms 19 1. The products and the product specifications described in this document are subject to change or discontinuation of production without notice for reasons such as improvement. Therefore, before deciding to use the products, please refer to Ricoh sales representatives for the latest information thereon. 2. The materials in this document may not be copied or otherwise reproduced in whole or in part without prior written consent of Ricoh. 3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise taking out of your country the products or the technical information described herein. 4. The technical information described in this document shows typical characteristics of and example application circuits for the products. The release of such information is not to be construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual property rights or any other rights. 5. The products listed in this document are intended and designed for use as general electronic components in standard applications (office equipment, telecommunication equipment, measuring instruments, consumer electronic products, amusement equipment etc.). Those customers intending to use a product in an application requiring extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic control system, automotive and transportation equipment, combustion equipment, safety devices, life support system etc.) should first contact us. 6. We are making our continuous effort to improve the quality and reliability of our products, but semiconductor products are likely to fail with certain probability. In order to prevent any injury to persons or damages to property resulting from such failure, customers should be careful enough to incorporate safety measures in their design, such as redundancy feature, fire containment feature and fail-safe feature. We do not assume any liability or responsibility for any loss or damage arising from misuse or inappropriate use of the products. 7. Anti-radiation design is not implemented in the products described in this document. 8. The X-ray exposure can influence functions and characteristics of the products. Confirm the product functions and characteristics in the evaluation stage. 9. WLCSP products should be used in light shielded environments. The light exposure can influence functions and characteristics of the products under operation or storage. 10. There can be variation in the marking when different AOI (Automated Optical Inspection) equipment is used. In the case of recognizing the marking characteristic with AOI, please contact Ricoh sales or our distributor before attempting to use AOI. 11. Please contact Ricoh sales representatives should you have any questions or comments concerning the products or the technical information. Halogen Free Ricoh is committed to reducing the environmental loading materials in electrical devices with a view to contributing to the protection of human health and the environment. Ricoh has been providing RoHS compliant products since April 1, 2006 and Halogen-free products since April 1, 2012. https://www.e-devices.ricoh.co.jp/en/ Sales & Support Offices Ricoh Electronic Devices Co., Ltd. Shin-Yokohama Office (International Sales) 2-3, Shin-Yokohama 3-chome, Kohoku-ku, Yokohama-shi, Kanagawa, 222-8530, Japan Phone: +81-50-3814-7687 Fax: +81-45-474-0074 Ricoh Americas Holdings, Inc. 675 Campbell Technology Parkway, Suite 200 Campbell, CA 95008, U.S.A. Phone: +1-408-610-3105 Ricoh Europe (Netherlands) B.V. Semiconductor Support Centre Prof. W.H. Keesomlaan 1, 1183 DJ Amstelveen, The Netherlands Phone: +31-20-5474-309 Ricoh International B.V. - German Branch Semiconductor Sales and Support Centre Oberrather Strasse 6, 40472 Düsseldorf, Germany Phone: +49-211-6546-0 Ricoh Electronic Devices Korea Co., Ltd. 3F, Haesung Bldg, 504, Teheran-ro, Gangnam-gu, Seoul, 135-725, Korea Phone: +82-2-2135-5700 Fax: +82-2-2051-5713 Ricoh Electronic Devices Shanghai Co., Ltd. Room 403, No.2 Building, No.690 Bibo Road, Pu Dong New District, Shanghai 201203, People's Republic of China Phone: +86-21-5027-3200 Fax: +86-21-5027-3299 Ricoh Electronic Devices Shanghai Co., Ltd. Shenzhen Branch 1205, Block D(Jinlong Building), Kingkey 100, Hongbao Road, Luohu District, Shenzhen, China Phone: +86-755-8348-7600 Ext 225 Ricoh Electronic Devices Co., Ltd. Taipei office Room 109, 10F-1, No.51, Hengyang Rd., Taipei City, Taiwan Phone: +886-2-2313-1621/1622 Fax: +886-2-2313-1623
R1210N222D-TR-FE
物料型号:RICOH R1210Nxx2x 系列

器件简介: - 该系列控制器由振荡器、PWM 电路、基准电压单元、误差放大器、相位补偿电路、电压检测电阻、芯片使能电路、负载瞬态抑制控制器和输出电压检测器组成。 - 只需四个外部元件(电感、二极管、晶体管和电容器)即可构成低纹波、高效率的升压型 DC/DC 转换器。

引脚分配: - CE(1号引脚):芯片使能引脚 - VOUT(2号引脚):输出电压引脚 - NC(3号引脚):无连接 - GND(4号引脚):地线 - EXT(5号引脚):外部晶体管驱动引脚

参数特性: - 外部元件:最少,只需电感、二极管、电容器和晶体管 - 待机电流:最大 0.5μA - 输出电压温度系数:典型值 ±100ppm/°C - 基本振荡频率:100kHz(xx2C)或 180kHz(xx2D) - 输出电压准确度:±2.5% - 封装:SOT-23-5,小型化

功能详解: - 该系列能够通过控制器检测输出电压的剧烈变化,改善负载瞬态响应。 - 内置芯片使能电路可以实现超低静态电流的待机模式。 - 通过连接低导通电阻的功率晶体管至 EXT 引脚,可提供大电流输出。

应用信息: - 电池供电设备的电源。 - 便携式通信设备、相机、录像机的电源。 - 需要高于电池电压的设备的电源。

封装信息:SOT-23-5,允许在电路板上进行高密度安装。
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