300mA LDO Monolithic IC MM3571 Series

Transcription

1 3mA LDO Monolithic IC MM3571 Series Outline This IC is a 3mA Low dropout regulator IC with a prevention circuit of rush current. No load input current is 25µA typ, and it reduce transient drop in voltage with high speed response circuit. A rush current prevention circuit can control rush current at start up. Features 1. Maximum operating voltage 6.5V 2. Output current 3mA 3. No load input current 25µA typ. 4. Input current (OFF) 1µA max. 5. Output voltage range 1.~5.V 6. Output voltage accuracy ±1% 7. Dropout voltage.62v typ. (IOUT=3mA) 8. Line regulation.1%/v max. 9. Load regulation 3mV typ.(iout=1~3ma) 1. Ripple rejection 7dB typ. (f=1khz) 11. Output Capacitor.47µF 12. ON/OFF control Package SC-82ABB SOT-25A SOT89-5A Applications 1. Mobile phone, Smart phone 2. Digital camera 3. Game equipment 4. Tablet

2 Block Diagram VDD VOUT CE Bias Vref GND Current Limit Pin Assignment CE 2 GND 3 VOUT 4 VDD VDD 2 GND 3 CE 4 NC 5 VOUT SC-82ABB (TOP VIEW) SOT-25A (TOP VIEW) VOUT 2 GND 3 NC 4 CE 5 VDD SOT89-5A (TOP VIEW) Note1 : Heat Spreader Bottom with GND.

3 Pin Description SC-82ABB Pin No. Pin name Functions 1 CE ON/OFF Control pin CE OUTPUT L OFF H ON Connect CE pin with VDD pin, when it is not used. 2 GND GND pin 3 VOUT Output pin 4 VDD Voltage Supply pin SOT89-5A Pin No. Pin name Functions 1 VOUT Output pin 2 GND GND pin 3 NC No connection SOT-25A Pin No. Pin name Functions 1 VDD Voltage supply pin 2 GND GND pin 3 CE ON/OFF Control pin CE OUTPUT L OFF H ON Connect CE pin with VDD pin, when it is not used. 4 NC No connection 5 VOUT Output pin 4 CE ON/OFF Control pin CE OUTPUT L OFF H ON Connect CE pin with VDD pin, when it is not used. 5 VDD Voltage supply pin Absolute Maximum Ratings (Except where noted otherwise Ta=25 C) Item Symbol Ratings Units Storage Temperature Tstg 55~+15 C Junction Temperature TjMAX 15 C Supply Voltage VDD.3~+7. V CE input Voltage VCE.3~+7. V Output Voltage VOUT.3~+7. V Output Current Iomax 5 ma 33(Note2) (SC-82ABB) Power Dissipation 1 Pd1 35(Note3) (SOT-25A) 69(Note4) (SOT89-5A) mw 65(Note5) (SC-82ABB) Power Dissipation 2 Pd2 7(Note5) (SOT-25A) mw 178(Note5)(SOT89-5A) Note2 : With PC Board of glass epoxy mm Note3 : With PC Board of glass epoxy mm Note4 : With PC Board of glass epoxy mm Note5 : JEDEC51-7 standard mm

4 Recommended Operating Conditions (Except where noted otherwise Ta=25 C) Item Symbol Ratings Units Operating Ambient Temperature Topr -4~+85 C Operating Voltage Vop 2.~6.5 V Output Current Iop ~3 ma Electrical Characteristics 1 (Except where noted otherwise VDD=VOUT(TYP.)+1V, VCE=VDD, Ta=25 C) Item Symbol Measurement conditions Min. Typ. Max. Units Input Current(OFF) IDDOff VCE=V.1 1. µa No-Load Input Current IDD IOUT=mA 25 4 µa Output Voltage VOUT IOUT=1mA (VOUT 2.V) V IOUT=1mA (VOUT 1.9V) V VOUT (TYP.)+.5V VDD 6.5V Line Regulation VLINE VOUT 1.1V, IOUT=1mA VOUT (TYP.)+1.V VDD 6.5V.1.1 %/V VOUT=1.V, IOUT=1mA Load Regulation 1 (Note6) VLOAD1 1mA IOUT 15mA 1 4 mv Load Regulation 2 (Note6) VLOAD2 1mA IOUT 3mA 3 12 mv Dropout Voltage Vio Please refer to another page V Ripple Rejection (Note7) RR f=1khz, Vripple=.5V, IOUT=1mA 7 db VOUT Temperature Coefficient (Note7) VOUT / T IOUT=1mA, -4 Top +85 C ±1 ppm/ C Output Current Limit Ilim 3 5 ma Output Short-Circuit Current (Note7) Ishort VOUT=V 5 ma CE High Threshold Voltage VCEH 1.5 VDD V CE Low Threshold Voltage VCEL.3 V CE High Threshold Current ICEH µa CE Low Threshold Current ICEL µa CL Discharge Resistance (Note7) Rdisc VCE=V, VDD=6V 1 Note6 : VDD=2.5V at VOUT 1.5V. Note7 : The parameter is guaranteed by design.

5 Electrical Characteristics 2 (Except where noted otherwise VDD=VOUT(TYP.)+1V, VCE=VDD, Ta=25 C) Model No. Output Voltage VOUT (V) Note8 : Dropout voltage maximum value in the input and it is confirmed that there is no output abnormal voltage impression the 15mA in the model less than VOUT<1.9V. Item Dropout Voltage VOUT (V) Measurement Conditions Min. Typ. Max. Measurement Conditions Min. Typ. Max. MM3571A MM3571A MM3571A MM3571A IOUT=15mA MM3571A V VOUT 1.9V.6.7 MM3571A (Note8) MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A3 IOUT=1mA MM3571A MM3571A MM3571A IOUT=15mA MM3571A MM3571A V VOUT 5.V MM3571A VDD=VOUT (TYP.) -.2V MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A

6 Model No. Output Voltage VOUT (V) Note9 : Dropout voltage maximum value in the input and it is confirmed that there is no output abnormal voltage impression the 3mA in the model less than VOUT< 2.7V. Item Dropout Voltage VOUT (V) Measurement Conditions Min. Typ. Max. Measurement Conditions Min. Typ. Max. MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A IOUT=3mA MM3571A V VOUT 2.7V MM3571A (Note9) MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A3 IOUT=1mA MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A IOUT=3mA MM3571A V VOUT 5.V MM3571A VDD=VOUT (TYP.) -.2V MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A MM3571A

7 Measuring Circuit Ceramic.47µF A VDD VOUT A V A CE GND Ceramic.47µF Application Circuit Ceramic.47µF VDD VOUT CE GND Ceramic.47µF Temperature Characteristics : B (Reference example of external parts) Output capacitor Ceramic capacitor.47µf Input capacitor Ceramic capacitor.47µf We shall not be liable for any trouble or damage caused by using this circuit. In the event a problem which may affect industrial property or any other rights of us or a third party is encountered during the use of information described in these circuit, we shall not be liable for any such problem, nor grant a license therefore.

8 Note 1. Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be exceeded. 2. Due to restrictions on the package power dissipation, the output current value may not be satisfied. Attention should be paid to the power dissipation of the package when the output current is large or the voltage between Iinput and Output is high. 3. The output capacitor is required between output and GND to prevent oscillation. 4. The ESR of capacitor must be defined in ESR stability area. It is possible to use a ceramic capacitor without ESR resistance for output. The ceramic capacitor must be used more than.47µf and B temperature characteristics. 5. The wire of VDD and GND is required to print full ground plane for noise and stability. 6. The input capacitor must be connected a distance of less than 1cm from input pin. 7. It is able to oscillation when you use the capacitor with intense capacitance change such as micro. Please evaluate IC in the set. 8. In case the output voltage is above the input voltage, the overcurrent flow by internal parastic diode from output to input.in such application, the external bypass diode must be connected between output and input pin. 9. This IC will limit the output current with the overcurrent protection circuit when the overcurrent and the output do short-circuit. However, IC generates heat because of the substrate and use conditions and there is a possibility of destroying it exceeding a permissible loss. The characteristic changes depending on the substrate condition. Please evaluate IC in the set.

9 About Power Dissipation The Power dissipation change if board to mount IC change because radiative heat fi x at board.it is reference data below, Evaluate IC in the set. MM3571AxxURE 1. PC Board of glass epoxy Board size 1mm 1mm t=1.6mm Copper foil area 1% Power dissipation 33mW Ta=25 C 2. JEDEC51-7 standard Board size 114.3mm 76.2mm t=1.6mm Copper foil area 8% Power dissipation 65mW Ta=25 C (It is reference value measured by JEDEC51-7 standard.) 9 8 Power Dissipation(mW) JEDEC51-7 standard 1. PC Board of glass epoxy Ambient Temperature( C) MM3571AxxNRE 1. PC Board of glass epoxy Board size 6mm 4mm t=1.6mm Copper foil area 6% Power dissipation 35mW Ta=25 C 2. JEDEC51-7 standard Board size 114.3mm 76.2mm t=1.6mm Copper foil area 8% Power dissipation 7mW Ta=25 C (It is reference value measured by JEDEC51-7 standard.) 9 Power Dissipation(mW) JEDEC51-7 standard 1. PC Board of glass epoxy Ambient Temperature( C)

10 MM3571AxxPRE 1. PC Board of glass epoxy Board size 5mm 5mm t=1.6mm Copper foil area 2% Power dissipation 69mW Ta=25 C 2. JEDEC51-7 standard Board size 114.3mm 76.2mm t=1.6mm Copper foil area 8% Power dissipation 178mW Ta=25 C (It is reference value measured by JEDEC51-7 standard.) 18 Power Dissipation(mW) JEDEC51-7 standard 1. PC Board of glass epoxy Ambient Temperature( C) It is recommended to layout the VIA for heat radiation in the GND pattern of reverse (of IC) when there is the GND pattern in the inner layer (in using multiplayer substrate). By increasing these copper foil pattern area of PCB, Power dissipation improves.

11 Characteristics (VOUT=1.V) (Except where noted otherwise VDD=VOUT(TYP.)+1V, VCE=VDD, Ta=25 C) Input Voltage - Output Voltage Input Voltage - Input Current RL= Output Voltage VOUT (V) 1..5 RL=1k RL=1 RL=3.33 Input Current IDD (µa) Input Voltage VDD (V) Input Voltage VDD (V) Load Regulation Line Regulation VDD=2.5V 12 6 RL=1 Load Regulation (mv) Line Regulation (mv) Output Current IOUT (ma) Input Voltage VDD (V) Vout Temperature Coefficient 1.1 RL=1 Output Voltage VOUT (V) Temperature Ta (ºC) 1

12 Ripple Rejection ESR stable area Ripple Rejection RR (db) IOUT=5mA IOUT=mA IOUT=1mA Frequency (khz) ESR ( ) Instable area Stable area VDD=2.5V 1 3 Output Current IOUT (ma) Current Limit 1.2 Output Voltage VOUT (V) VDD=2.5V VDD=2.8V Output Current IOUT (ma) 6

13 Load Transient response (VDD=2.5V, VCE=VDD, Cin=Cout=.47µF) IOUT=1mA 1mA 1µs/div IOUT:5mA/div IOUT=1mA 1µs/div 3mA IOUT:mA/div 9mV VOUT:1mV/div 16mV VOUT:mV/div IOUT=1mA 1µs/div 3mA IOUT:mA/div IOUT=1mA 1µs/div ma IOUT:1mA/div 12mV VOUT:mV/div 5mV VOUT:5mV/div CE Transient (VDD=2.5V, VCE=V VDD, CO=.47µF) CE Transient (VDD=2.5V, VCE=V VDD, CO=1µF) 1µs/div VCE:2V/div 2µs/div VCE:2V/div VOUT:.5V/div VOUT:.5V/div Iin:mA/div Iin:mA/div

14 Output Rise Time (VDD=2.5V, VCE=V VDD, Cin=.47µF) Output Capacitor Output Rise Time (Co=.47μF 1μF) 6 Output Capacitor Output Rise Time (Co=.47μF 47μF) Output Rise Time (ms) Output Rise Time (μs) Output Capacitor Co Rush Current (Co=.47μF 1μF) 5 Output Capacitor Co Rush Current (Co=.47μF 47μF) Rush Current (ma) Rush Current (ma)

15 Characteristics (VOUT=3.V) (Except where noted otherwise VDD=VOUT(TYP.)+1V, VCE=VDD, Ta=25 C) Input Voltage - Output Voltage Input Voltage - Input Current Output Voltage VOUT (V) RL=3k RL=3 RL= Input Voltage VDD (V) 6 7 Input Current IDD (µa) RL= Input Voltage VDD (V) Load Regulation Line Regulation 12 1 RL=3 Load Regulation (mv) Line Regulation (mv) Output Current IOUT (ma) Input Voltage VDD (V) Dropout Voltage.5 VDD=2.8V Vout Temperature Coefficient 3.15 RL=3 Dropout Voltage (V) Output Voltage VOUT (V) Output Current IOUT (ma) Temperature Ta (ºC) 1

16 Ripple Rejection ESR stable area 1 Ripple Rejection RR (db) IOUT=mA IOUT=1mA IOUT=5mA Frequency (khz) ESR ( ) Instable area Stable area 1 3 Output Current IOUT (ma) Current Limit 3.5 Output Voltage VOUT (V) VDD=4.V VDD=4.5V 4 6 Output Current IOUT (ma) 8

17 Load Transient response (VDD=VOUT+1V, VCE=VDD, Cin=Cout=.47µF) IOUT=1mA 1mA 1µs/div IOUT:5mA/div IOUT=1mA 1µs/div 3mA IOUT:mA/div 6mV VOUT:5mV/div 13mV VOUT:1mV/div IOUT=1mA 1µs/div 3mA IOUT:mA/div IOUT=1mA 1µs/div ma IOUT:1mA/div 11mV VOUT:1mV/div 45mV VOUT:5mV/div CE Transient (VDD=VOUT+1V, VCE=V VDD, CO=.47µF) CE Transient (VDD=VOUT+1V, VCE=V VDD, CO=1µF) 1µs/div VCE:5V/div 5µs/div VCE:5V/div VOUT:2V/div VOUT:2V/div Iin:mA/div Iin:mA/div

18 Output Rise Time (VDD=VOUT+1V, VCE=V VDD, Cin=.47µF) Output Capacitor Output Rise Time (Co=.47μF 1μF) 3 8 Output Capacitor Output Rise Time (Co=.47μF 47μF) Output Rise Time (ms) Output Rise Time (μs) Output Capacitor Co Rush Current (Co=.47μF 1μF) 8 Output Capacitor Co Rush Current (Co=.47μF 47μF) Rush Current (ma) 6 4 Rush Current (ma)

19 Characteristics (VOUT=5.V) (Except where noted otherwise VDD=VOUT(TYP.)+1V, VCE=VDD, Ta=25 C) Input Voltage - Output Voltage Input Voltage - Input Current Output Voltage VOUT (V) RL=5k RL=5 RL= Input Voltage VDD (V) 6 7 Input Current IDD (µa) RL= Input Voltage VDD (V) Load Regulation Line Regulation 12 1 RL=5 Load Regulation (mv) Line Regulation (mv) Output Current IOUT (ma) Input Voltage VDD (V) 6.5 Dropout Voltage.6 VDD=4.8V Vout Temperature Coefficient 5.15 RL=5 Dropout Voltage (V) Output Voltage VOUT (V) Output Current IOUT (ma) Temperature Ta (ºC) 1

20 Ripple Rejection ESR stable area 1 Ripple Rejection RR (db) IOUT=1mA IOUT=mA IOUT=5mA Frequency (khz) ESR ( ) Instable area Stable area 1 15 Output Current IOUT (ma) Current Limit 6 Output Voltage VOUT (V) VDD=6.5V VDD=6.V Output Current IOUT (ma) 1

21 Load Transient response (VDD=VOUT+1V, VCE=VDD, Cin=Cout=.47µF) IOUT=1mA 1mA 1µs/div IOUT:5mA/div IOUT=1mA 1µs/div 3mA IOUT:mA/div 6mV VOUT:5mV/div 13mV VOUT:1mV/div IOUT=1mA 1µs/div 3mA IOUT:mA/div IOUT=1mA 1µs/div ma IOUT:1mA/div 12mV VOUT:1mV/div 45mV VOUT:5mV/div CE Transient (VDD=VOUT+1V, VCE=V VDD, CO=.47µF) CE Transient (VDD=VOUT+1V, VCE=V VDD, CO=1µF) 1µs/div VCE:5V/div 5µs/div VCE:5V/div VOUT:2V/div VOUT:2V/div Iin:mA/div Iin:mA/div

22 Output Rise Time (VDD=VOUT+1V, VCE=V VDD, Cin=.47µF) Output Capacitor Output Rise Time (Co=.47μF 1μF) 3 1 Output Capacitor Output Rise Time (Co=.47μF 47μF) Output Rise Time (ms) 2 1 Output Rise Time (μs) Output Capacitor Co Rush Current (Co=.47μF 1μF) 1 Output Capacitor Co Rush Current (Co=.47μF 47μF) Rush Current (ma) Rush Current (ma)