MCP1727T-3302E/MF Microchip Technology, MCP1727T-3302E/MF Datasheet

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MCP1727T-3302E/MF

Manufacturer Part Number
MCP1727T-3302E/MF
Description
1.5A CMOS LDO, Vout=3.3V, Extended Temp Range 8 DFN 3x3mm T/R
Manufacturer
Microchip Technology
Datasheets

Specifications of MCP1727T-3302E/MF

Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 6V
Voltage - Dropout (typical)
0.33V @ 1.5A
Number Of Regulators
1
Current - Output
1.5A (Min)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-DFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP1727T-3302E/MF
Manufacturer:
MICROCHIP
Quantity:
12 000
Features
• 1.5A Output Current Capability
• Input Operating Voltage Range: 2.3V to 6.0V
• Adjustable Output Voltage Range: 0.8V to 5.0V
• Standard Fixed Output Voltages:
• Other Fixed Output Voltage Options Available
• Low Dropout Voltage: 330 mV Typical at 1.5A
• Typical Output Voltage Tolerance: 0.5%
• Stable with 1.0 µF Ceramic Output Capacitor
• Fast response to Load Transients
• Low Supply Current: 120 µA (typ)
• Low Shutdown Supply Current: 0.1 µA (typ)
• Adjustable Delay on Power Good Output
• Short Circuit Current Limiting and
• 3x3 DFN-8 and SOIC-8 Package Options
Applications
• High-Speed Driver Chipset Power
• Networking Backplane Cards
• Notebook Computers
• Network Interface Cards
• Palmtop Computers
• 2.5V to 1.XV Regulators
Package Types
© 2007 Microchip Technology Inc.
SHDN
1.5A, Low Voltage, Low Quiescent Current LDO Regulator
GND
- 0.8V, 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
Upon Request
Overtemperature Protection
V
V
Adjustable (SOIC-8)
IN
IN
1
2
3
4
8
7
6
5
V
ADJ
C
PWRGD
OUT
DELAY
SHDN
GND
V
V
IN
IN
Fixed (SOIC-8)
1
2
3
4
8
7
6
5
V
Sense
C
PWRGD
OUT
DELAY
SHDN
GND
Adjustable (3x3 DFN)
V
V
IN
IN
Description
The MCP1727 is a 1.5A Low Dropout (LDO) linear
regulator that provides high current and low output
voltages in a very small package. The MCP1727
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 MCP1727 a good choice
for new sub-1.8V output voltage LDO applications that
have high current demands.
The MCP1727 is stable using ceramic output
capacitors that inherently provide lower output noise
and reduce the size and cost of the entire regulator
solution. Only 1 µF of output capacitance is needed to
stabilize the LDO.
Using CMOS construction, the quiescent current
consumed by the MCP1727 is typically less than
120 µA over the entire input voltage range, making it
attractive for portable computing applications that
demand high output current. When shut down, the
quiescent current is reduced to less than 0.1 µA.
The scaled-down output voltage is internally monitored
and a power good (PWRGD) output is provided when
the output is within 92% of regulation (typical). An
external capacitor can be used on the C
adjust the delay from 200 µs to 300 ms.
The overtemperature and short circuit current-limiting
provide additional protection for the LDO during system
fault conditions.
1
2
3
4
MCP1727
8
7
6
5
V
ADJ
C
PWRGD
OUT
DELAY
SHDN
GND
V
V
IN
IN
Fixed (3x3 DFN)
1
2
3
4
DS21999B-page 1
DELAY
8
7
6
5
V
Sense
C
PWRGD
OUT
DELAY
pin to

Related parts for MCP1727T-3302E/MF

MCP1727T-3302E/MF Summary of contents

Page 1

... GND 4 5 PWRGD 4 GND © 2007 Microchip Technology Inc. MCP1727 Description The MCP1727 is a 1.5A Low Dropout (LDO) linear regulator that provides high current and low output voltages in a very small package. The MCP1727 comes in a fixed (or adjustable) output voltage version, with an output voltage range of 0 ...

Page 2

... MCP1727 Fixed Output Voltage OUT Sense SHDN C 6 DELAY 4 GND PWRGD 5 MCP1727 Adjustable Output Voltage OUT ADJ IN 3 SHDN C 6 DELAY 4 GND PWRGD 1. OUT µ 100 kΩ 1000 pF PWRGD OUT kΩ µ 100 kΩ kΩ 1000 pF PWRGD © 2007 Microchip Technology Inc. ...

Page 3

... Functional Block Diagram - Adjustable Output V IN Undervoltage Lock Out (UVLO) SHDN Overtemperature Sensing V IN SHDN Soft-Start GND © 2007 Microchip Technology Inc. PMOS I SNS Driver w/limit EA and SHDN – SHDN V REF Reference Comp 92 REF MCP1727 V OUT ADJ PWRGD T DELAY C DELAY DS21999B-page 3 ...

Page 4

... MCP1727 Functional Block Diagram - Fixed Output V IN Undervoltage Lock Out (UVLO) SHDN Overtemperature Sensing V IN SHDN Soft-Start GND DS21999B-page 4 PMOS I SNS Driver w/limit EA and SHDN – SHDN V REF Reference Comp 92 REF V OUT Sense PWRGD T DELAY C DELAY © 2007 Microchip Technology Inc. ...

Page 5

... The test time is small enough such that the rise in the junction temperature over the ambient temperature is not significant. © 2007 Microchip Technology Inc. † Notice: Stresses above those listed under “Maximum Rat- ings” may cause permanent damage to the device. This is a ...

Page 6

... SENSE PWRGD_TH PWRGD_TH % 2. 2. µ 6V, SHDN = SHDN = GND µs SHDN = GND GND to 95% V OUT DROPOUT(MAX). is the desired set point output R is the highest voltage measured over the . DROPOUT(MAX) ). Exceeding the maximum allowable power © 2007 Microchip Technology Inc. + ...

Page 7

... Electrical Specifications: Unless otherwise indicated, all limits apply for V Parameters Temperature Ranges Operating Junction Temperature Range Maximum Junction Temperature Storage Temperature Range Thermal Package Resistances Thermal Resistance, 8LD 3x3 DFN Thermal Resistance, 8LD SOIC © 2007 Microchip Technology Inc OUT(MAX) DROPOUT(MAX) = +25°C. A (Note 7) of -40°C to +125°C ...

Page 8

... OUT - 105 130 Temperature (°C) Line Regulation vs 1 1500 mA OUT V = 3.3V OUT V = 0.8V OUT V = 1.8V OUT V = 5.0V OUT - 105 130 Temperature (°C) Load Regulation 1.0 mA OUT - 105 130 Temperature (°C) Adjust Pin Voltage vs. © 2007 Microchip Technology Inc. ...

Page 9

... -45 - Temperature (°C) FIGURE 2-9: Power Good (PWRGD) Time Delay vs. Temperature. © 2007 Microchip Technology Inc. = 1.8V (Adjustable 2.8V OUT = V + 0.6V, RPWRGD = 10 kΩ OUT 150 V OUT 140 I OUT 130 120 = 2.5V Adj OUT 110 100 1250 1500 FIGURE 2-10: Voltage (0 ...

Page 10

... Temperature (°C) Line Regulation vs 2. 1500 mA OUT - 105 130 Temperature (°C) Load Regulation vs. < 2.5V Fixed). OUT 1500 mA OUT V = 2.5V OUT V = 5.0V OUT - 105 130 Temperature (°C) Load Regulation vs. ≥ 2.5V Fixed). OUT © 2007 Microchip Technology Inc. ...

Page 11

... 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. Input Voltage. © 2007 Microchip Technology Inc. = 1.8V (Adjustable 2.8V OUT = V + 0.6V, RPWRGD = 10 kΩ OUT 5.0V OUT 0.1 0.01 0.001 1500 ...

Page 12

... Shutdown. OUT 100 1000 FIGURE 2-29: Timing with C = 2.5V OUT FIGURE 2-30: Timing with C = 4.7 µF Ceramic (X7R 4.7 µ 2.5V (Fixed) Startup from Power Good (PWRGD) of 1000 pF. BYPASS Power Good (PWRGD) of 0.1 µF. BYPASS © 2007 Microchip Technology Inc. ...

Page 13

... NOTE: Unless otherwise indicated V OUT Ceramic (X7R mA, Temperature = +25°C, V OUT FIGURE 2-31: Dynamic Line Response (0.8V Fixed). FIGURE 2-32: Dynamic Line Response (2.5V Fixed). © 2007 Microchip Technology Inc. = 1.8V (Adjustable 2.8V OUT = V + 0.6V, RPWRGD = 10 kΩ OUT FIGURE 2-33: (2.5V Fixed 1000 mA). ...

Page 14

... This provides the user the capability to set the output voltage to any value they desire within the 0.8V to 5.0V range of the device. pin) from the time the LDO DELAY pin. DELAY ) pin to ground, the typical delay times © 2007 Microchip Technology Inc. ...

Page 15

... SENSE input is used to provide output voltage feedback to the internal circuitry of the MCP1727. The SENSE pin typically improves load regulation by allowing the device to compensate for voltage drops due to packaging and circuit board layout. © 2007 Microchip Technology Inc. MCP1727 3.7 Regulated Output Voltage (V The V ...

Page 16

... MCP1727 to improve dynamic performance and power supply ripple rejection performance. A maximum of 22 µF is recommended. capacitors are not recommended for low-temperature applications of ≤ 25°C. V – V ⎛ ⎞ OUT ADJ -------------------------------- = R ⎝ ⎠ ADJ LDO Output Voltage ADJ Pin Voltage (typically 0.41V) Aluminum-electrolytic © 2007 Microchip Technology Inc. ...

Page 17

... Figure 4-3. © 2007 Microchip Technology Inc. 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 ...

Page 18

... LDO. For applications with input voltages near 2.3V, these PCB trace voltage drops can sometimes lower the input voltage enough to trigger a shutdown due to undervoltage lockout. Figure 4-5 for a timing diagram 400 ns (typ) 70 µs Shutdown Input Timing © 2007 Microchip Technology Inc. ...

Page 19

... The junction temperature of the die is a function of power dissipation, ambient temperature and package thermal resistance. See Section 5.0 “Application Circuits/Issues” for more information on LDO power dissipation and junction temperature. © 2007 Microchip Technology Inc. MCP1727 DS21999B-page 19 ...

Page 20

... GND for the MCP1727 is GND continuous operating junction C ° the device. The thermal resistance C/W. ° × Rθ TOTAL JA AMAX = Maximum continuous junction temperature = Total device power dissipation = Thermal resistance from junction to ambient = Maximum ambient temperature © 2007 Microchip Technology Inc. To ...

Page 21

... T = Rise in device junction temperature J(RISE) over the ambient temperature T = Ambient temperature A © 2007 Microchip Technology Inc. 5.3 Typical Application Internal power dissipation, junction temperature rise, junction temperature and maximum power dissipation can be is calculated in the following example. The power dissipation as a result of ground current is small enough to be neglected ...

Page 22

... Capacitor DELAY charging current, DELAY 140 nA typical. ΔT = time delay Δ threshold voltage, DELAY 0.42V typical ΔT ( 140nA ΔT • ) • ------ - --------------------------------- - = 333.3 ΔV 0.42V For a delay of 300 ms 333.3E-09 * .300 C = 100E-09uF (0.1 μF) © 2007 Microchip Technology Inc. – 09 ×10 • ΔT ...

Page 23

... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2007 Microchip Technology Inc. Standard Extended Temp Voltage Voltage ...

Page 24

... A1 0.00 A3 0.20 REF D 3.00 BSC E2 0.00 E 3.00 BSC D2 0.00 b 0.25 L 0. NOTE BOTTOM VIEW NOM MAX 8 0.90 1.00 0.02 0.05 – 1.60 – 2.40 0.30 0.35 0.30 0.55 – – Microchip Technology Drawing C04-062B © 2007 Microchip Technology Inc. ...

Page 25

... Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side. 4. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. REF: Reference Dimension, usually without tolerance, for information purposes only. © 2007 Microchip Technology Inc ...

Page 26

... MCP1727 NOTES: DS21999B-page 26 © 2007 Microchip Technology Inc. ...

Page 27

... Figure 2-22: Revised label on Y-axis • Figure 2-27 and Figure 2-28: Replaced figure and revised figure captions. • Added disclaimers to package outline drawings. • Updated package outline drawings. Revision A (July 2006) • Original Release of this Document. © 2007 Microchip Technology Inc. MCP1727 DS21999B-page 27 ...

Page 28

... MCP1727 NOTES: DS21999B-page 28 © 2007 Microchip Technology Inc. ...

Page 29

... To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office PART NO Device Output Feature Tolerance Voltage Code Device: MCP1727: 1.5A Low Dropout Regulator MCP1727T: 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

... MCP1727 NOTES: DS21999B-page 30 © 2007 Microchip Technology Inc. ...

Page 31

... 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 32

... Fax: 886-3-572-6459 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 Tel: 33-1-69-53-63-20 ...

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