MCP1827 MICROCHIP [Microchip Technology], MCP1827 Datasheet
MCP1827
Available stocks
Related parts for MCP1827
MCP1827 Summary of contents
Page 1
... Description The MCP1827/MCP1827S is a 1.5A Low Dropout (LDO) linear regulator that provides high current and low output voltages. The MCP1827 comes in a fixed or adjustable output voltage version, with an output voltage range of 0.8V to 5.0V. The 1.5A output current capability, combined with the low output voltage capability, make the MCP1827 a good choice for new sub-1 ...
Page 2
... C 1 4.7 µF On SHDN Off 2. 4.7 µF DS22001B-page 2 MCP1827 Fixed Output Voltage R 100 kΩ OUT IN GND MCP1827 Adjustable Output Voltage VADJ R 40 kΩ OUT IN GND PWRGD 1. OUT µ kΩ 1. ...
Page 3
... Functional Block Diagram - Adjustable Output V IN Undervoltage Lock Out (UVLO) SHDN Overtemperature Sensing V IN SHDN Soft-Start GND © 2006 Microchip Technology Inc. MCP1827/MCP1827S PMOS I SNS Driver w/limit EA and SHDN – SHDN V REF Reference Comp 92 REF V OUT ADJ T DELAY ...
Page 4
... MCP1827/MCP1827S Functional Block Diagram - Fixed Output (5 pin Undervoltage Lock Out (UVLO) SHDN Overtemperature Sensing V IN SHDN Soft-Start GND DS22001B-page 4 PMOS I SNS Driver w/limit EA and SHDN – SHDN V REF Reference Comp 92 REF V OUT Sense PWRGD T DELAY © 2006 Microchip Technology Inc. ...
Page 5
... Functional Block Diagram - Fixed Output (3-Pin Undervoltage Lock Out (UVLO) SHDN Overtemperature Sensing V IN SHDN Soft-Start GND © 2006 Microchip Technology Inc. MCP1827/MCP1827S PMOS I SNS Driver w/limit EA and SHDN – SHDN V REF Reference Comp 92 REF V OUT Sense ...
Page 6
... MCP1827/MCP1827S 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † V ....................................................................................6.5V IN Maximum Voltage on Any Pin .. (GND – 0.3V Maximum Power Dissipation......... Internally-Limited (Note 6) Output Short Circuit Duration ................................Continuous Storage temperature .....................................-65°C to +150°C Maximum Junction Temperature, T ........................... +150°C J ........... ≥ ESD protection on all pins (HBM/MM) ...
Page 7
... The junction temperature is approximated by soaking the device under test at an ambient temperature equal to the desired junction temperature. The test time is small enough such that the rise in the junction temperature over the ambient temperature is not significant. © 2006 Microchip Technology Inc. MCP1827/MCP1827S = ...
Page 8
... MCP1827/MCP1827S AC/DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise noted mA 4.7 µF (X7R Ceramic), T OUT IN OUT 40°C to +125°C Parameters Sym Power Supply Ripple Rejection PSRR Ratio Thermal Shutdown Temperature T ΔT Thermal Shutdown Hysteresis Note 1: The minimum V must meet two conditions: V ...
Page 9
... V OUT 130 125 120 V =5.0V IN 115 110 V =4.0V IN 105 100 -45 - Temperature (°C) FIGURE 2-3: Quiescent Current vs. Junction Temperature (1.2V Adjustable). © 2006 Microchip Technology Inc. MCP1827/MCP1827S = V + 0.6V and T = +25°C. OUT OUT A 0.1 0.09 0.08 0.07 0.06 0.05 I 0.04 OUT 0.03 0. 1.2V Adj OUT 0. OUT 0 ...
Page 10
... MCP1827/MCP1827S NOTE: Unless otherwise indicated 0. 5.0V Adj OUT 0.30 0.25 0.20 V 0.15 0.10 0.05 0.00 0 250 500 750 1000 Load Current (mA) FIGURE 2-7: Dropout Voltage vs. Load Current (Adjustable Version). 0. 1.5A OUT 0.40 0. 5.0V Adj OUT 0.36 0. 2.5V Adj OUT 0.32 0.30 -45 - Temperature (°C) FIGURE 2-8: Dropout Voltage vs. Temperature (Adjustable Version). 370 V OUT V = 3.9V 360 ...
Page 11
... I = 500mA 0.04 OUT 0. 0.8V OUT V = 2.3V to 6.0V IN 0.00 -45 - Temperature (°C) FIGURE 2-15: Line Regulation vs. Temperature (0.8V Fixed). © 2006 Microchip Technology Inc. MCP1827/MCP1827S = V + 0.6V and T = +25°C. OUT OUT A 0.045 0.040 0.035 0.030 0.025 0.020 I OUT 0.015 -45 105 130 FIGURE 2-16: Temperature (2.5V Fixed). 0.30 V OUT ...
Page 12
... MCP1827/MCP1827S NOTE: Unless otherwise indicated 0.40 Temperature = 25 ° 2.5V OUT 0.30 0.25 V OUT 0.20 0.15 0.10 0.05 0.00 0 250 500 750 1000 1250 Load Current (mA) FIGURE 2-19: Dropout Voltage vs. Load Current. 0.45 0.40 0. 5.0V OUT 0. 2.5V OUT 0.25 -45 - Temperature (°C) FIGURE 2-20: Dropout Voltage vs. Temperature. 3.00 2.50 2.00 1.50 1.00 V 0.50 Temperature = 25°C 0.00 3.0 3.5 4.0 4.5 5.0 Input Voltage (V) FIGURE 2-21: Short Circuit Current vs. ...
Page 13
... IN -70 I =10 mA OUT -80 0.01 0 Frequency (kHz) FIGURE 2-26: Power Supply Ripple Rejection (PSRR) vs. Frequency (V Fixed). FIGURE 2-27: 2.5V (Adj.) Startup from V © 2006 Microchip Technology Inc. MCP1827/MCP1827S = V + 0.6V and T = +25°C. OUT OUT A 100 1000 FIGURE 2-28: = 3.3V Shutdown. OUT 100 1000 FIGURE 2-29: Timing. = 3.3V ...
Page 14
... MCP1827/MCP1827S NOTE: Unless otherwise indicated FIGURE 2-31: Dynamic Load Response (3.3V Fixed 1500 mA). DS22001B-page 0.6V and T = +25°C. OUT OUT A FIGURE 2-32: (3.3V Fixed, 100 mA to 1500 mA). Dynamic Load Response © 2006 Microchip Technology Inc. ...
Page 15
... Regulated Output Voltage (V The V pin is the regulated output voltage of the OUT LDO. A minimum output capacitance of 1.0 µF is required for LDO stability. The MCP1827/MCP1827S is stable with ceramic, tantalum and aluminum-electro- lytic capacitors. See Section 4.3 “Output Capacitor” for output capacitor selection guidance. 3.7 Exposed Pad (EP) The DDPAK and TO-220 package have an exposed tab on the package ...
Page 16
... The MCP1827 has a shutdown control input and a power good output. 4.1 LDO Output Voltage The 5-pin MCP1827 LDO is available with either a fixed output voltage or an adjustable output voltage. The output voltage range is 0.8V to 5.0V for both versions. The 3-pin MCP1827S LDO is available as a fixed voltage device ...
Page 17
... Figure 4-3. The power good output is an open-drain output that can be pulled up to any voltage that is equal to or less than the LDO input voltage. This output is capable of sinking 1 < 0.4V maximum). PWRGD © 2006 Microchip Technology Inc. MCP1827/MCP1827S V PWRGD_TH V OUT T PG step load ...
Page 18
... V + 0.6V differential applied. The MCP1827/ R MCP1827S LDO has a very low dropout voltage specification of 330 mV (typical) at 1.5A of output current. See Section 1.0 “Electrical Characteristics” for maximum dropout voltage specifications. The MCP1827/MCP1827S LDO operates across an input voltage range of 2 ...
Page 19
... IN(MAX) I VIN PWRGD The total power dissipated within the MCP1827/ MCP1827S is the sum of the power dissipated in the LDO pass device and the P(I CMOS construction, the typical I MCP1827S is 120 µA. Operating at a maximum of 3.465V results in a power dissipation of 0.49 milli- Watts. For most applications, this is small compared to the LDO pass device power dissipation and can be neglected ...
Page 20
... MCP1827/MCP1827S The maximum power dissipation capability for a package can be calculated given the junction-to- ambient thermal resistance and the maximum ambient temperature for the application. Equation 5-4 can be used to determine the package maximum internal power dissipation. EQUATION 5- – MAX A MAX P = --------------------------------------------------- ...
Page 21
... D(MAX) DDPAK-5 (31.2°C/Watt Rθ (125°C – 60°C)/ 31.2° C/W D(MAX 2.083W D(MAX) From this table you can see the difference in maximum allowable power dissipation between the TO-220-5 package and the DDPAK-5 package. © 2006 Microchip Technology Inc. MCP1827/MCP1827S DS22001B-page 21 ...
Page 22
... DDPAK (MCP1827S) XXXXXXXXX XXXXXXXXX YYWWNNN 3-Lead TO-220 (MCP1827S) XXXXXXXXX XXXXXXXXX YYWWNNN 5-Lead DDPAK (Fixed) (MCP1827) XXXXXXXXX XXXXXXXXX YYWWNNN 5-Lead TO-220 (Adj) (MCP1827) XXXXXXXXX XXXXXXXXX YYWWNNN Legend: XX...X Customer-specific information Y Year code (last digit of calendar year) ...
Page 23
... See ASME Y14.5M REF: Reference Dimension, usually without tolerance, for information purposes only. See ASME Y14.5M JEDEC equivalent: TO-252 Drawing No. C04-011 © 2006 Microchip Technology Inc. MCP1827/MCP1827S Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging L3 ...
Page 24
... MCP1827/MCP1827S 3-Lead Plastic Transistor Outline (AB) (TO-220) E φP E α PIN 1 PIN Units Dimension Limits n Number of Pins e Pitch Overall Pin Pitch e1 Overall Height A Tab Thickness A1 Base to Lead A2 Overall Width E Exposed Tab Width E1 – (SEE BOTTOM VARIANT B) E3 ...
Page 25
... See ASME Y14.5M REF: Reference Dimension, usually without tolerance, for information purposes only. See ASME Y14.5M JEDEC equivalent: TO-252 Drawing No. C04-012 © 2006 Microchip Technology Inc. MCP1827/MCP1827S Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging L3 ...
Page 26
... MCP1827/MCP1827S 5-Lead Plastic Transistor Outline (AT) (TO-220) L β EJECTOR PIN C1 J1 Dimension Limits Lead Pitch Overall Lead Centers Space Between Leads Overall Height Overall Width Overall Length Flag Length Flag Thickness Through Hole Center Through Hole Diameter Lead Length Base to Bottom of Lead ...
Page 27
... APPENDIX A: REVISION HISTORY Revision B (September 2006) • Correction to maximum Dropout Voltage in Section 1.0. • Added additional graphs in Section 2.0. • Added disclaimer to package outline drawings. Revision A (July 2006) • Original Release of this Document. © 2006 Microchip Technology Inc. MCP1827/MCP1827S DS22001B-page 27 ...
Page 28
... MCP1827/MCP1827S NOTES: DS22001B-page 28 © 2006 Microchip Technology Inc. ...
Page 29
... X Device Output Feature Tolerance Voltage Code Device: MCP1827: 1.5A Low Dropout Regulator MCP1827T: 1.5A Low Dropout Regulator Tape and Reel MCP1827S: 1.5A Low Dropout Regulator MCP1827ST: 1.5A Low Dropout Regulator Tape and Reel Output Voltage *: 08 = 0.8V “Standard” 1.2V “Standard” 1.8V “Standard” 2.5V “Standard” 3.0V “Standard” ...
Page 30
... MCP1827/MCP1827S NOTES: DS22001B-page 30 © 2006 Microchip Technology Inc. ...
Page 31
Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...
Page 32
W ORLDWIDE AMERICAS ASIA/PACIFIC Corporate Office Asia Pacific Office 2355 West Chandler Blvd. Suites 3707-14, 37th Floor Chandler, AZ 85224-6199 Tower 6, The Gateway Tel: 480-792-7200 Habour City, Kowloon Fax: 480-792-7277 Hong Kong Technical Support: Tel: 852-2401-1200 http://support.microchip.com Fax: 852-2401-3431 ...