R1110N RICOH | Alldatasheet

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L.D.O REGULATOR R1110N SERIES NO. EA-046-9803 ELECTRONIC DEVICES DIVISION

  1. The products and the product specifications described in this application manual 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. This application manual 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 application manual 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, computer 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 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 application manual. 8. Please contact Ricoh sales representatives should you have any questions or comments concerning the products or the technical information. June 1995

LOW NOISE 150mA L.D.O REGULATOR R1110N SERIES OUTLINE The R1110N Series are voltage regulator ICs with high output voltage accuracy, lowest supply current, low ON Resistance and high Ripple Rejection by CMOS process. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors, a current limit circuit and a chip enable circuit. These ICs perform with low dropout voltage and a chip enable function. The Dynamic Response to line and load is fast, so these ICs are very suitable for the power supply for handheld communi- cation equipment. The output voltage of these ICs is fixed with high accuracy. Since the package for these ICs are SOT-23-5(Mini-mold)package, high density mounting of the ICs on boards is possible.

FEATURES

  • Low Temperature-Drift Coefficient of

APPLICATIONS

  • Power source for portable communication tools, cameras and VCRs.
  • Power source for battery-powered equipment.
  • Power source for domestic appliances.

R1110N××1A R1110N××1B SELECTION GUIDE The output voltage, the active type, the packing type and the taping type for the ICs can be selected at the user's request. The selection can be made by designating the part number as shown below: a b c Code

Contents

a Setting Output Voltage (VOUT) : Stepwise setting with a step of 0.1V in the range of 2.0V to 6.0V is possible. Designation of Chip enable Active Type : b A : “L” active type B : “H” active type c Designation of Taping Type : Ex. TR, TL (refer to Taping Specifications, TR type is prescribed as a standard.)

(mark side)

  • SOT-23-5 PIN DESCRIPTION Pin No. Symbol Pin Description VDD Input Pin GND Ground Pin CE or CE Chip Enable Pin NC No Connection VOUT Output Pin

V VCE Input Voltage for CE/CE Pin –0.3 to VIN +0.3 V VOUT Output Voltage –0.3 to VIN +0.3 V IOUT Output Current 200 mA PD Power Dissipation 250 mW Topt Operating Temperature Range –40 to 85 Tstg Storage Temperature Range –55 to 125 ABSOLUTE MAXIMUM RATINGS Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation above these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress ratings only and do not necessarily imply functional operation below these limits.

ELECTRICAL CHARACTERISTICS

MIN. TYP. MAX. Unit VOUT Output Voltage VIN–setVOUT=1.0V ×0.98 ×1.02 V 1mA≤IOUT≤30mA IOUT Output Current VIN–setVOUT=1.0V 150 mA when VOUT=setVOUT–0.1V ∆VOUT Load Regulation VIN–setVOUT=1.0V mV ∆IOUT 1mA≤IOUT≤80mA VDIF Dropout Voltage Iss Supply Current VIN–setVOUT=1.0V µA Istandby Standby Current VIN–setVOUT=1.0V, VCE=VIN 0.1 1.0 µA ∆VOUT Line Regulation ∆VIN RR Ripple Rejection f=1kHz, Ripple 0.5Vp-p dB VIN–setVOUT=1.0V VIN Input Voltage 2.7 V ∆VOUT Output Voltage IOUT=30mA ±100 ppm/˚C ∆Topt Temperature Coefficient Ilim Short Current Limit VOUT=0V mA RPU Pull up resistance for CE pin 2.5 MΩ VCEH CE Input Voltage “H” 1.5 VIN V VCEL CE Input Voltage “L” 0.25 V en Output Noise BW=10Hz to 100kHz µVrms Topt=25˚C refer to the ELECTICAL CHARACTERISTICS by OUTPUT VOLTAGE refer to the ELECTICAL CHARACTERISTICS by OUTPUT VOLTAGE

  • ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE Dropout Voltage Line Regulation VDIF (V) ∆VOUT/∆VIN(%/V) Conditions TYP. MAX. Conditions TYP. MAX. 2.0≤VOUT≤2.4 0.30 0.70 2.5≤VOUT≤2.7 0.24 0.35 0.05 0.20 2.8≤VOUT≤3.3 0.20 0.30 3.4≤VOUT≤6.0 0.17 0.26 Topt=25˚C IOUT=100mA IOUT=30mA setVOUT+0.7V≤VIN≤8V IOUT=30mA setVOUT+0.5V≤VIN≤8V Output Voltage VOUT(V) Symbol Item Conditions MIN. TYP. MAX. Unit VOUT Output Voltage VIN–setVOUT=1.0V ×0.98 ×1.02 V 1mA≤IOUT≤30mA IOUT Output Current VIN–setVOUT=1.0V 150 mA when VOUT=setVOUT–0.1V ∆VOUT Load Regulation VIN–setVOUT=1.0V mV ∆IOUT 1mA≤IOUT≤80mA VDIF Dropout Voltage Iss Supply Current VIN–setVOUT=1.0V µA Istandby Standby Current VIN–setVOUT=1.0V, VCE=GND 0.1 1.0 µA ∆VOUT Line Regulation ∆VIN RR Ripple Rejection f=1kHz, Ripple 0.5Vp-p dB VIN–setVOUT=1.0V VIN Input Voltage 2.7 V ∆VOUT Output Voltage IOUT=30mA ±100 ppm/˚C ∆Topt Temperature Coefficient Ilim Short Current Limit VOUT=0V mA RPD Pull down resistance for CE pin 2.5 MΩ VCEH CE Input Voltage “H” 1.5 VIN V VCEL CE Input Voltage “L” 0.25 V en Output Noise BW=10Hz to 100kHz µVrms Topt=25˚C refer to the ELECTICAL CHARACTREISTICS by OUTPUT VOLTAGE refer to the ELECTICAL CHARACTREISTICS by OUTPUT VOLTAGE

R1110N××1A R1110N××1B VOUT GND VDD CE Vref Current Limit VOUT GND VDD CE Vref Current Limit OPERATION In these ICs, fluctuation in Output Voltage VOUT is detected by Feed-back Registers R1, R2, and the result is compare with a reference voltage by Error Amplifier, so that a constant voltage is output. A current limit circuit working for Short Protect and a chip enable circuit are included.

10µF 10µF VDD IN R1110N××1B Series IOUT GND CE VOUT OUT 10µF 10µF VDD IN R1110N××1B Series GND ISS CE VOUT OUT 10µF VDD R1110N××1B Series IOUT GND P.G CE VOUT OUT 10µF 10µF VDD IN R1110N××1B Series GND TEST CIRCUITS Standard Test Circuit Test Circuit for Supply Current Test Circuit for Ripple Rejection and Line Transient Response Test Circuit for Load Transient Response

3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 Output Current IOUT(mA) Output Voltage VOUT(V) 100 200 300 400 500 3.5V 4.0V 5.0V Topt=25˚C VIN=3.3V R1110N401B 4.5 4.0 3.5 3.0 2.5 1.5 1.0 2.0 0.5 0.0 Output Current IOUT(mA) Output Voltage VOUT(V) 100 200 300 400 500 4.5V 5.0V 6.0V Topt=25˚C VIN=4.3V R1110N501B 6.0 5.0 4.0 3.0 2.0 1.0 0.0 Output Current IOUT(mA) Output Voltage VOUT(V) 100 200 300 400 500 Topt=25˚C 7.0V 5.5V 6.0V VIN=5.3V R1110N301B 3.1 3.0 2.9 2.8 2.7 2.6 2.5 Input Voltage VIN(V) Output Voltage VOUT(V) 2.0 3.0 4.0 6.0 7.0 8.0 5.0 Topt=25˚C IOUT=1mA 30mA 50mA R1110N401B 4.5 4.0 3.5 3.0 2.5 Input Voltage VIN(V) Output Voltage VOUT(V) 2.0 3.0 4.0 5.0 6.0 8.0 7.0 Topt=25˚C 30mA 50mA IOUT=1mA TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current 2) Output Voltage vs. Input Voltage

0.30 0.35 0.40 0.25 0.20 0.15 0.10 0.05 0.00 Output Current IOUT(mA) Dropout Voltage VDIF(V) 100 150 –40˚C 25˚C Topt=85˚C R1110N401B 0.30 0.35 0.40 0.25 0.20 0.15 0.10 0.05 0.00 Output Current IOUT(mA) Dropout Voltage VDIF(V) 100 150 –40˚C 25˚C Topt=85˚C R1110N501B 0.30 0.40 0.35 0.25 0.20 0.15 0.10 0.05 0.00 Output Current IOUT(mA) Dropout Voltage VDIF(V) 100 150 –40˚C Topt=85˚C 25˚C R1110N501B 5.5 5.0 4.5 4.0 3.5 3.0 2.5 Output Voltage VOUT(V) 2.0 3.0 4.0 5.0 6.0 7.0 8.0 30mA IOUT=1mA 50mA Topt=25˚C Input Voltage VIN(V) 3) Dropout Voltage vs. Output Current

2.92 2.94 2.96 2.98 3.00 3.02 3.04 3.06 3.08 3.10 2.90 TemperatureTopt(˚C) Output Voltage VOUT(V) –50 –25 100 VIN=4V IOUT=10mA R1110N401B 3.92 3.94 3.96 3.98 4.00 4.02 4.04 4.06 4.08 4.10 3.90 TemperatureTopt(˚C) Output Voltage VOUT(V) –50 –25 100 VIN=5V IOUT=10mA R1110N501B 4.92 4.94 4.96 4.98 5.00 5.02 5.04 5.06 5.08 5.10 4.90 TemperatureTopt(˚C) Output Voltage VOUT(V) –50 –25 100 VIN=6V IOUT=10mA R1110N301B 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Topt=25˚C Input Voltage VIN(V) Supply Current ISS(µA) R1110N401B 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Topt=25˚C Input Voltage VIN(V) Supply Current ISS(µA) 4) Output Voltage vs. Temperature 5) Supply Current vs. Input Voltage

TemperatureTopt(˚C) Supply Current ISS(µA) –50 –25 100 VIN=4V R1110N301B TemperatureTopt(˚C) Supply Current ISS(µA) –50 –25 100 VIN=5V R1110N401B TemperatureTopt(˚C) Supply Current ISS(µA) –50 –25 100 VIN=6V R1110N501B R1110N501B 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Topt=25˚C Input Voltage VIN(V) Supply Current ISS(µA) 6) Supply Current vs. Temperature

Frequency f(kHZ) Ripple Rejection RR(dB) 0.1 100 VIN=4VDC+0.5Vp-p COUT=tantal 4.7µF IOUT=1mA IOUT=30mA IOUT=50mA Frequency f(kHZ) Ripple Rejection RR(dB) 0.1 100 IOUT=1mA IOUT=30mA IOUT=50mA R1110N301B VIN=4VDC+0.5Vp-p COUT=10µF Frequency f(kHZ) Ripple Rejection RR(dB) 0.1 100 IOUT=1mA IOUT=30mA IOUT=50mA R1110N401B VIN=5VDC+0.5Vp-p COUT=4.7µF Frequency f(kHZ) Ripple Rejection RR(dB) 0.1 100 IOUT=1mA IOUT=30mA IOUT=50mA R1110N401B VIN=5VDC+0.5Vp-p COUT=10µF R1110N××1B 0.7 0.6 0.5 0.4 0.3 0.2 0.0 0.1 Set Output Voltage Vreg(V) Dropout Voltage VDIF(V) 2.0 3.0 4.0 6.0 5.0 Topt=25˚C IOUT=150mA IOUT=100mA IOUT=50mA IOUT=30mA IOUT=10mA 7) Dropout Voltage vs. Set Output Voltage 8) Ripple Rejection vs. Frequency

Input Voltage VIN(V) Ripple Rejection RR(dB) 3.1 3.2 3.3 3.5 3.4 IOUT =1mA COUT=10µF f=400Hz f=1kHz f=10kHz R1110N301B Input Voltage VIN(V) Ripple Rejection RR(dB) 3.1 3.2 3.3 3.5 3.4 IOUT =10mA COUT=10µF f=400Hz f=1kHz f=10kHz R1110N301B Frequency f(kHZ) Ripple Rejection RR(dB) 0.1 100 IOUT=1mA IOUT=30mA IOUT=50mA R1110N501B VIN=6VDC+0.5Vp-p COUT=4.7µF Frequency f(kHZ) Ripple Rejection RR(dB) 0.1 100 IOUT=1mA IOUT=30mA IOUT=50mA R1110N501B VIN=6VDC+0.5Vp-p COUT=10µF Input Voltage VIN(V) Ripple Rejection RR(dB) 3.1 3.2 3.3 3.5 3.4 IOUT=50mA COUT=10µF f=400Hz f=1kHz f=10kHz R1110N301B 9) Ripple Rejection vs. Input Voltage (DC bias)

3.4 3.3 3.2 3.1 3.0 2.9 2.8 Time t(µS) Output Voltage VOUT(V) Input Voltage VIN(V) 100 120 IOUT=30mA tr=tf=5µs COUT=Tantalum4.7µF R1110N301B Input Voltage Output Voltage 3.4 3.3 3.2 3.1 3.0 2.9 2.8 Time t(µS) Output Voltage VOUT(V) Input Voltage VIN(V) 100 120 IOUT=30mA tr=tf=5µs COUT=Tantalum6.8µF R1110N301B Input Voltage Output Voltage 3.4 3.3 3.2 3.1 3.0 2.9 2.8 Time t(µS) Output Voltage VOUT(V) Input Voltage VIN(V) 100 120 IOUT=30mA tr=tf=5µs COUT=Tantalum10µF R1110N301B Input Voltage Output Voltage 10) Line Transient Response

VIN=4V CIN=Tantalum1µF COUT=Tantalum4.7µF R1110N301B 3.4 3.3 3.2 3.1 3.0 2.9 2.8 150 100 –50 –100 –150 Time t(µS) Output Voltage VOUT(V) Output Current IOUT(mA) Output Current Output Voltage VIN=4V CIN=Tantalum1µF COUT=Tantalum6.8µF R1110N301B 3.4 3.3 3.2 3.1 3.0 2.9 2.8 150 100 –50 –100 –150 Time t(µS) Output Voltage VOUT(V) Output Current IOUT(mA) Output Current Output Voltage VIN=4V CIN=Tantalum1µF COUT=Tantalum10µF R1110N301B 3.4 3.3 3.2 3.1 3.0 2.9 2.8 150 100 –50 –100 –150 Time t(µS) Output Voltage VOUT(V) Output Current IOUT(mA) Output Current Output Voltage 11) Load Transient Response

When using these ICs, be sure to take care of following points :

  • In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For this purpose, be sure to use a capacitor COUT with good frequency characteristics and ESR (Equivalent Series Resistance) of which is in the range described as follows : The relations between IOUT (Output Current) and ESR of Output Capacitor are shown below. The conditions when the white noise level is under 40µV (Avg.) are marked as the hatched area in the graph. (note : When the additional ceramic capacitors are connected to the Output Pin with Output capacitor for phase compensation, there are possibilities that the operation will be unstable. Because of this, test these ICs with as same external components as ones to be used on the PCB.) < measuring conditions > VIN=4V Freqency band : 10Hz to 1MHz Temperature : 25˚C
  • Make VDD and GND line sufficient. When the impedance of these is high, there is a case to pick up the noise or not to work correctly.
  • Connect the capacitor with a capacitance of 1µF or more between VDD and GND as close as possible.
  • Set external components, especially Output Capacitor, as close as possible to the ICs and make wiring shortest. Ceramic Capacitor 4.7µF 100 0.1 Output Current IOUT(mA) ESR(Ω) 150 Ceramic Capacitor 6.8µF 100 0.1 Output Current IOUT(mA) ESR(Ω) 150 Ceramic Capacitor 10µF 100 0.1 Output Current IOUT(mA) ESR(Ω) 150 CE Ceramic Capacitor Spectrum Analyzer VOUT IOUT R1110N301B ESR VIN S.A. Ceramic Capacitor1µF GND VIN
  • Measuring Circuit for white noise ; R1110N301B

R1110N××1A Cap. Cap. CE GND VDD OUT VOUT IN R1110N××1B Cap. Cap. 2.9±0.2 0.8±0.1 0.4±0.1 1.9±0.2 (0.95) (0.95) +0.2 –0.1 1.6 +0.2 –0.1 1.1 +0.1 –0.05 0.15 2.8±0.3 0 to 0.1 0.2 MIN. PACKAGE DIMENSION (Unit : mm)

  • SOT-23-5

TAPING SPECIFICATION (Unit : mm)

  • SOT-23-5 T R T L User Direction of Feed 2.0MAX. 0.3±0.1 4.0±0.1 2.0±0.05 4.0±0.1 3.3 3.2 8.0±0.3 1.75±0.1 3.5±0.05 1.5+0.1 ø

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