150mA Regulator Monolithic IC MM157 N, 161 N

Transcription

1 MITSUMI 5mA Regulator MM57, 6 5mA Regulator Monolithic IC MM57, 6 Outline This IC is an ultra-small, low noise, stable power supply that supports ceramic capacitors (low ESR) Output current goes up to 5mA, and use of a noise pin reduces output noise even further. Output O/OFF can be controlled with the O/OFF pin. Features. I/O voltage difference.v typ. (IO=5mA) 2. Output noise voltage 3µVrms typ. (Cn=.µF) 3. Recommended maximum output current 5mA max. 4. o-load current consumption 85µA typ. 5. Built-in overcurrent protection and thermal shutdown circuits 6. Output voltage rank.5 ~ 5.V (.V steps) 7. Output O/OFF control function High: O, Low: OFF Package SOT-25A (MM57, MM6 ) contains the output voltage rank. Applications. Cordless telephone 2. Cellular telephone, PHS 3. Portable MD 4. Other battery-powered portable equipment Pin Assignment MM57 VI 2 3 COT 4 oise 5 VO MM6 COT 2 3 oise 4 VOUT 5 VI SOT-25A (TOP VIEW) The component MM6 is MM57 with changed pin configuration.

2 MITSUMI 5mA Regulator MM57, 6 Equivalent Circuit Diagram VI VO Cin µf Bias Co µf COT Reference Driver Current limitter Thermal shutdown oise Cn.µF Pin Description Typical model: MM57 Pin o. Pin name Function Internal equivalent circuit diagram VI Input pin The capacitor is required to connect with input pin more than µf. Input circuit 2 Ground 3 COT O/OFF Control pin COT H L VO O OFF COT pin must be connected with VI pin, if it is not used.

3 MITSUMI 5mA Regulator MM57, 6 Pin o. Pin name Function Internal equivalent circuit diagram 4 oise oise decrease pin Connecting.µF capacitor can decrease output noise. If the noise decrease capacitor is not connected, the pin may be influenced by outside noise. 5 VO Output pin The capacitor must be connected with output pin more than µf. Absolute Maximum Ratings (Ta=25 C) Item Symbol Ratings Units Storage temperature TSTG -4~+5 C Operating temperature TOPR -3~+85 C Supply voltage VI -.3~+2 V Allowable loss Pd 5 (ot attached) mw Recommended Operating Conditions Item Symbol Ratings Units Output current IOUT ~5 ma Operating voltage VOP VOUT Typ. +.5~+2 V

4 MITSUMI 5mA Regulator MM57, 6 Electrical Characteristics (Except where noted otherwise, Ta=25 C, VI=VO Typ. +V, IO=mA, VCOT=2V) Item Symbol Measurement conditions Min. Typ. Max. Units o-load input current ICC IO=mA 85 3 µa Input current (OFF) ICCOFF VCOT=V. µa Output voltage VOUT.98.2 V Dropout voltage 2 Vio VI=VO-.2V, IO=5mA..2 V Line regulation V VI=VO Typ. +~V 2 mv Load regulation V2 IO=~5mA 3 9 mv VOUT temperature coefficient VOUT/ T Tj=-3~+85 C ppm/ C Ripple rejection RR f=2hz VRIPPLE=V 5 7 db Ripple rejection 2 RR2 f=khz, Cn=.µF VRIPPLE=V 6 db Output noise voltage Vn fbw=2~8khz Cn=.µFC 3 µvrms COT pin input current ICOT VCOT=5V 5 5 µa COT pin high threshold level VCOTH.6 VI+.3 V COT pin low threshold level VCOTL V ote : The parameter is guaranteed by design. ote 2: 2 The parameter is not guaranteed in the model less than VOUT=2V Electrical Characteristics 2 Typical model: MM57 Output Voltage Product Test Output voltage name conditions Min. Typ. Max. MM57F MM57G MM57H MM57J MM57K MM572A MM572B MM572C MM572D MM572E MM572F IO=mA MM572G MM572H MM572J MM572K MM573A MM573B MM573C MM573D MM573E MM573F MM573G Rank is indicated inside for MM6. Example: MM63 is 3.9V typ. Product Test Output voltage name conditions Min. Typ. Max. MM573H MM573J MM573K MM574A MM574B MM574C MM574D IO=mA MM574E MM574F MM574G MM574H MM574J MM574K MM575A

5 MITSUMI 5mA Regulator MM57, 6 Measuring Circuit Typical model: MM57 A µf.µf V 5 4 VO oise VI 2 COT 3 A A µf Application Circuit Typical model: MM57 µf.µf 5 4 VO oise VI 2 COT 3 µf Temperature Characteristics: B Type ote. The output capacitor is required between output and to prevent oscillation. 2. Use a capacitance that is within the ESR characteristics stable range for output capacity. It is possible to use a ceramic capacitor without ESR resistance for output. The ceramic capacitor must be used more than µf and B type temperature characteristics. 3. The wire of Vcc and is required to print full ground plane for noise and stability. 4. The input capacitor must be connected a distance of less than cm from input pin.

6 MITSUMI 5mA Regulator MM57, 6 Characteristics (2.8V product Except where noted otherwise, Ta=25 C, VI=VO+V, VCOT=2V, CI=µF, Co=µF, Cn=.µF) Output-Input Voltage RL=2.8kΩ RL=93Ω. RL=9Ω Input Current II (ma) Input Current-Input Voltage RL= Load Regulation Line Regulation RL=2.8kΩ Dropout Voltage VIO (V) Dropout Voltage-Output Current VI=2.6V Output Voltage- Ambient Temperature 2.9 RL=2.8kΩ Ambient Temperature Ta ( C)

7 MITSUMI 5mA Regulator MM57, 6 Ripple Rejection RR (db) Ripple Rejection IO=5mA IO=mA Cn=.µF IO=3mA. Frequency f (khz) Ripple Rejection RR (db) Ripple Rejection IO=5mA IO=mA IO=3mA Cn=. Frequency f (khz) Pin Current ICC (ma) Pin Current Output oise Voltage Vn (µvrms) Output oise Voltage oise Reduction Capacitor Cn (µf) CI=CO=µF CI=CO=.47µF

8 MITSUMI 5mA Regulator MM57, 6 Load Transient Respones (IO= ma) CH=mV DC : CI=CO=µF, Cn=.µF µs/div CH2=5mV AC : IO: 5mA/div ma Load Transient Respones (IO= ma) CH=mV DC : CI=CO=.47µF, Cn=.µF µs/div CH2=5mV AC : IO: 5mA/div ma VO: 5mV/div VO: 5mV/div Line Transient Respones (VI= V, IO=3mA) CH=2V DC : CI=, CO=µF, Cn=.µF µs/div CH2=2mV AC : Line Transient Respones (VI= V, IO=3mA) CH=2V DC : CI=, CO=.47µF, Cn=.µF µs/div CH2=2mV AC : VI: 2V/div VI: 2V/div VO: 2mV/div VO: 2mV/div Turn-On Transient Respones CH=2V DC : VI=VCOT= CH2=2V DC : 3.8V, IO=3mA µs/div Turn-On Transient Tespones VI=3.8V, VCOT= CH=2V DC : CH2=2V DC : 3.8V, IO=3mA µs/div VI, Cont: 2V/div Cont: 2V/div VO: 2V/div VO: 2V/div

9 MITSUMI 5mA Regulator MM57, 6 Characteristics (.8V product Except where noted otherwise, Ta=25 C, VI=VO+V, VCOT=2V, CI=µF, Co=µF, Cn=.µF) Output-Input Voltage 2. Load Regulation RL=.8kΩ RL=6Ω RL=2Ω Line Regulation.85 RL=.8kΩ Output Voltage- Ambient Temperature.9 RL=.8kΩ Ambient Temperature Ta ( C) CI=CO=µF CI=CO=.47µF

10 MITSUMI 5mA Regulator MM57, 6 Characteristics (3.5V product Except where noted otherwise, Ta=25 C, VI=VO+V, VCOT=2V, CI=µF, Co=µF, Cn=.µF) Output-Input Voltage 5. Load Regulation RL=3.5kΩ RL=7Ω RL=23Ω Line Regulation 3.52 RL=3.5kΩ Output Voltage- Ambient Temperature 3.6 RL=3.5kΩ Ambient Temperature Ta ( C) CI=CO=µF CI=CO=.47µF