MCP1703 Microchip Technology, MCP1703 Datasheet
MCP1703
Available stocks
Related parts for MCP1703
MCP1703 Summary of contents
Page 1
... OUT © 2007 Microchip Technology Inc. MCP1703 Description The MCP1703 is a family of CMOS low dropout (LDO) voltage regulators that can deliver up to 250 mA of current while consuming only 2.0 µA of quiescent current (typical). The input operating range is specified from 2.7V to 16.0V, making it an ideal choice for two to six primary cell battery-powered applications, 9V alka- line and one or two cell Li-Ion-powered applications ...
Page 2
... MCP1703 Functional Block Diagrams V IN Overcurrent Overtemperature Typical Application Circuits + Battery 1 µF Ceramic DS22049A-page 2 MCP1703 Error Amplifier +V IN Voltage - Reference + GND MCP1703 V OUT GND V OUT V OUT 3.3V I OUT OUT 1 µF Ceramic © 2007 Microchip Technology Inc. ...
Page 3
... IN IN OUT(MAX) = 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, or 5.0V 2.7V (whichever is greater); I DROPOUT(MAX ΔTemperature * OUT-HIGH + V or 2.7V, whichever is greater. OUT(MAX) DROPOUT(MAX) , θ MCP1703 , Note OUT(MAX) DROPOUT(MAX) Conditions Note ≥ 2.5V For V R ≥ 2.7V For V < 2.5V ≥ 2.95V For V < 2.5V ≥ 3.2V For V < ...
Page 4
... MCP1703 DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise specified, all limits are established for 100 µ µF (X7R µF (X7R), T LOAD OUT IN Boldface type applies for junction temperatures, T Parameters Symbol Dropout Voltage V DROPOUT Note 1, Note 5 Output Delay Time T DELAY ...
Page 5
... FIGURE 2-5: Current. 3. 5.0V OUT µA 2.50 OUT 0°C 2.00 1.50 1.00 +25°C 0.50 0. -45 FIGURE 2-6: Junction Temperature. MCP1703 = 1 µF Ceramic (X7R 100 µ 1.2V OUT 120 160 200 Load Current (mA) Ground Current vs. Load V = 5.0V OUT 2.5V OUT 100 ...
Page 6
... MCP1703 Note: Unless otherwise indicated +25° OUT(MAX) DROPOUT(MAX) 1.240 V = 1.2V OUT I = 0.1 mA 1.230 LOAD -45°C 0°C 1.220 1.210 1.200 +90°C +25°C 1.190 1.180 Input Voltage (V) FIGURE 2-7: Output Voltage vs. Input Voltage. 2. 2.5V OUT 2. 0.1 mA LOAD 2.54 +90°C +130°C 2 ...
Page 7
... FIGURE 2-17: Input Voltage. 1.00 0.90 0.80 0.70 0.60 0.50 0.40 V 0.30 IN 0.20 -45 FIGURE 2-18: Temperature. MCP1703 = 1 µF Ceramic (X7R 100 µ Dynamic Line Response 2.5V OUT R < 0.1 ? OUT Input Voltage (V) Short Circuit Current vs 1. OUT ...
Page 8
... MCP1703 Note: Unless otherwise indicated +25° OUT(MAX) DROPOUT(MAX) 1. 2.5V OUT 1. 250 mA OUT V = 16V IN 0.80 0.60 0.40 0. 3. -0.20 -0.40 -45 - Temperature (°C) FIGURE 2-19: Load Regulation vs. Temperature. 1.00 V OUT 0. 16V OUT IN 0. 0.40 0. 0.00 IN -0.20 -0.40 -45 - Temperature (°C) FIGURE 2-20: Load Regulation vs ...
Page 9
... FIGURE 2-26: Output Noise vs. Frequency. FIGURE 2-27: Power Up Timing. © 2007 Microchip Technology Inc. = 1.8V µF Ceramic (X7R), C OUT or 2.7V, whichever is greater. 100 1000 FIGURE 2-28: I =50 mA OUT 100 1000 FIGURE 2-29: MCP1703 = 1 µF Ceramic (X7R 100 µ Dynamic Load Response. Dynamic Load Response. DS22049A-page 9 ...
Page 10
... MCP1703 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in TABLE 3-1: MCP1703 PIN FUNCTION TABLE Pin No. Pin No. Pin No. SOT-223-3 SOT-23A SOT-89 2,Tab - 3.1 Ground Terminal (GND) Regulator ground. Tie GND to the negative side of the output and the negative side of the input capacitor. ...
Page 11
... Figure 4-1). 4.2 Overcurrent The MCP1703 internal circuitry monitors the amount of current flowing through the P-Channel pass transistor. In the event of a short-circuit or excessive output current, the MCP1703 will turn off the P-Channel device for a short period, after which the LDO will attempt to restart ...
Page 12
... Li-Ion cell batteries. 5.1 Input The input of the MCP1703 is connected to the source of the P-Channel PMOS pass transistor. As with all LDO circuits, a relatively low source impedance (10Ω) is needed to prevent the input impedance from causing the LDO to become unstable ...
Page 13
... APPLICATION CIRCUITS & ISSUES 6.1 Typical Application The MCP1703 is most commonly used as a voltage regulator. Its low quiescent current and low dropout voltage make it ideal for many battery-powered applications. MCP1703 V GND 2.7V to 4.8V V OUT V IN 1.8V V OUT I OUT C OUT µF Ceramic FIGURE 6-1: Typical Application Circuit. ...
Page 14
... P = 1.35 Watts D(MAX) 6.4 Voltage Reference The MCP1703 can be used not only as a regulator, but also as a low quiescent current voltage reference. In many microcontroller applications, the initial accuracy of the reference can be calibrated using production test equipment or by using a ratio measurement. When the initial accuracy is calibrated, the thermal stability and ...
Page 15
... Microchip Technology Inc. Extended Temp Voltage * Symbol Voltage * 1.2 HT 3.0 1.5 HU 3.3 1.8 HV 4.0 2.5 HW 5.0 2.8 — — Standard Options for SOT-223 Extended Temp Voltage * Symbol Voltage * 1.2 30 3.0 1.5 33 3.3 1.8 40 4.0 2.5 50 5.0 2.8 — — MCP1703 Example: HWNN Example HM0719 256 Example: Tab is GND MCP1703 15E0719 256 DS22049A-page 15 ...
Page 16
... MCP1703 3-Lead Plastic Small Outline Transistor (CB) [SOT-23A] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging Number of Pins Lead Pitch Outside Lead Pitch Overall Height Molded Package Thickness Standoff Overall Width ...
Page 17
... Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. © 2007 Microchip Technology Inc Units MILLIMETERS Dimension Limits MIN MAX 1.50 BSC e1 3.00 BSC A 1.40 1.60 H 3.94 4.25 E 2.29 2.60 E1 2.13 2.29 D 4.39 4.60 D1 1.40 1.83 L 0.79 1.20 c 0.35 0.44 b 0.41 0.56 b1 0.36 0.48 Microchip Technology Drawing C04-029B MCP1703 DS22049A-page 17 ...
Page 18
... MCP1703 3-Lead Plastic Small Outline Transistor (DB) [SOT-223] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging Number of Leads Lead Pitch Outside Lead Pitch Overall Height Standoff Molded Package Height Overall Width ...
Page 19
... APPENDIX A: REVISION HISTORY Revision A (June 2007) • Original Release of this Document. © 2007 Microchip Technology Inc. MCP1703 DS22049A-page 19 ...
Page 20
... MCP1703 NOTES: DS22049A-page 20 © 2007 Microchip Technology Inc. ...
Page 21
... To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office PART NO Device Tape Output Feature and Reel Voltage Code Device: MCP1703: 250 mA, 16V Low Quiescent Current LDO Tape and Reel Tape and Reel Output Voltage *: 12 = 1.2V “Standard” 1.5V “Standard” 1.8V “Standard” 2.5V “ ...
Page 22
... MCP1703 NOTES: DS22049A-page 22 © 2007 Microchip Technology Inc. ...
Page 23
... PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
Page 24
... Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2007 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris ...