MCP1727-1802E/SN Microchip Technology, MCP1727-1802E/SN Datasheet

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MCP1727-1802E/SN

Manufacturer Part Number
MCP1727-1802E/SN
Description
IC REG LDO 1.5A 1.8V 8SOIC
Manufacturer
Microchip Technology
Datasheets

Specifications of MCP1727-1802E/SN

Regulator Topology
Positive Fixed
Voltage - Output
1.8V
Voltage - Input
2.3 ~ 6 V
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-SOIC (3.9mm Width)
Primary Input Voltage
2.3V
Output Voltage Fixed
1.8V
Dropout Voltage Vdo
330mV
No. Of Pins
8
Output Current
1.5A
Operating Temperature Range
-40°C To +125°C
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
6 V
Output Voltage
1.8 V
Output Type
Fixed
Dropout Voltage (max)
0.55 V at 1.5 A
Line Regulation
0.05 % / V
Load Regulation
0.5 %
Voltage Regulation Accuracy
2 %
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP1727-1802E/SN
Manufacturer:
Microchip Technology
Quantity:
135
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 MCP1727-1802E/SN

MCP1727-1802E/SN Summary of contents

Page 1

... 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 0.8V to 5.0V. The 1.5A ...

Page 2

... 4.7 µF On Off V = 2. 4.7 µF On Off DS21999B-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 ...

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

... ((R /R )+1). Figure 4-1. R ADJ * ΔTemperature * OUT-HIGH is the lowest voltage measured over the temperature range OUT R , θ MCP1727 (Note 1), V =1.8V for Adjustable Output, R Units Conditions V Note 1 µ mA Note 0.8V to 5.0V OUT µA SHDN = GND 2. 0.8V to 5.0V, Note 1 R (Note 1) ≤ V ≤ ...

Page 6

... MCP1727 AC/DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise noted mA 4.7 µF (X7R Ceramic), T OUT IN OUT Boldface type applies for junction temperatures, T Parameters Sym Dropout Characteristics Dropout Voltage Power Good Characteristics PWRGD Input Voltage Operat- V PWRGD_VIN ing Range PWRGD Threshold Voltage V PWRGD_TH ...

Page 7

... J T — — +150 J T -65 — +150 A θ — 41 — JA θ — 150 — JA MCP1727 (Note 1), V =1.8V for Adjustable Output, R Units Conditions µV/√ 200 mA kHz, C OUT OUT = 10 µF (X7R Ceramic), V OUT 2. 100 Hz µF, OUT mA, OUT pk-pk, INAC µ ...

Page 8

... MCP1727 2.0 TYPICAL PERFORMANCE CURVES Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e ...

Page 9

... FIGURE 2-11: Voltage (2.5V Fixed). 250.00 = 0.01 μF DELAY = 1.8V Adj OUT 200.00 150.00 100.00 50.00 0.00 105 130 0 FIGURE 2-12: Current. MCP1727 = 4.7 µF Ceramic (X7R 4.7 µ 0. +130°C +85°C +25°C -45° Input Voltage (V) Quiescent Current vs. Input = 2. +130 ° ...

Page 10

... MCP1727 NOTE: Unless otherwise indicated V OUT Ceramic (X7R mA, Temperature = +25°C, V OUT 130 OUT 125 120 115 110 V = 0.8V OUT 105 100 V = 2.5V OUT 95 -45 - Temperature (°C) FIGURE 2-13: Quiescent Current vs. Temperature. 0. 0.8V R 0.25 0. 6. 4. 2.3V IN 0.05 0.00 -45 -20 ...

Page 11

... FIGURE 2-23: Rejection (PSRR) vs. Frequency (V Adj.). 0 -10 -20 -30 -40 -50 -60 = 2.5V OUT -70 -80 5.5 6.0 0.01 FIGURE 2-24: Rejection (PSRR) vs. Frequency (V Adj.). MCP1727 = 4.7 µF Ceramic (X7R 4.7 µ μF ceramic X7R OUT V =2.5V, V =3.3V C =10 μF ceramic =200 mA OUT V =0.8V ...

Page 12

... MCP1727 NOTE: Unless otherwise indicated V OUT Ceramic (X7R mA, Temperature = +25°C, V OUT 0 -10 -20 -30 -40 V =2.5V Fixed R -50 C =10 μF ceramic X7R OUT V =3.3V - μF IN -70 I =10 mA OUT -80 0.01 0 Frequency (kHz) FIGURE 2-25: Power Supply Ripple Rejection (PSRR) vs. Frequency (V Fixed). 0 -10 -20 -30 ...

Page 13

... 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). FIGURE 2-34: (2.5V Fixed, 100 mA to 1000 mA). MCP1727 = 4.7 µF Ceramic (X7R 4.7 µ Dynamic Load Response Dynamic Load Response DS21999B-page 13 ...

Page 14

... MCP1727 3.0 PIN DESCRIPTION The descriptions of the pins are listed in TABLE 3-1: PIN FUNCTION TABLE Adjustable Fixed Output Output — — Exposed Pad Exposed Pad 3.1 Input Voltage Supply (V Connect the unregulated or regulated input voltage source the input voltage source is located ...

Page 15

... Sense For fixed output voltage versions of the device, the 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. ...

Page 16

... ADJ 4.2 Output Current and Current Limiting The MCP1727 LDO is tested and ensured to supply a minimum of 1.5A of output current. The MCP1727 has no minimum output load, so the output load current can and the LDO will continue to regulate the output voltage to within tolerance. The MCP1727 also incorporates an output current limit. ...

Page 17

... PWRGD power-up time DELAY for power good delay can be adjusted from 200 µs (no capacitance 300 ms (0.1 µF of capacitance on C DELAY See Section 1.0 “Electrical Characteristics” for C timing tolerances. DELAY MCP1727 < 0.4V maximum VDET_PWRGD V OL Power Good Timing. ...

Page 18

... See Section 1.0 “Electrical Characteristics” for maximum dropout voltage specifications. The MCP1727 LDO operates across an input voltage range of 2.3V to 6.0V and incorporates input Undervolt- age Lockout (UVLO) circuitry that keeps the LDO output voltage off until the input voltage reaches a minimum of 2 ...

Page 19

... Overtemperature Protection The MCP1727 LDO has temperature-sensing circuitry to prevent the junction temperature from exceeding approximately 150 C. If the LDO junction temperature ° does reach 150 C, the LDO output will be turned off ° until the junction temperature cools to approximately 140 C, at which point the LDO output will automatically ° ...

Page 20

... V 2 IN(MAX) 10 µF I VIN The total power dissipated within the MCP1727 is the sum of the power dissipated in the LDO pass device and the P(I PWRGD construction, the typical I 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 21

... Refer to AN792, “A Method to Determine How Much Power a SOT23 Can Dissipate in an Application” (DS00792), for more information regarding this subject. T J(RISE) T JRISE T JRISE MCP1727 = 3.3V ± 2.5V = 1.5A = 60° – IN(MAX) OUT(MIN) OUT(MAX) = ((3.3V x 1.05) – ...

Page 22

... MCP1727 5.3.1.2 Junction Temperature Estimate To estimate the internal junction temperature, the calculated temperature rise is added to the ambient or offset temperature. For this example, the worst-case junction temperature is estimated below JRISE A(MAX 63.14°C + 60.0° 123.14° you can see from the result, this application will be operating very near the maximum operating junction temperature of 125° ...

Page 23

... CAAQ 3.3 1.8 CAAR 5.0 2.5 CAAH ADJ Standard Extended Temp Voltage Voltage Code Options * Options * 0.8 302E 3.0 1.2 332E 3.3 1.8 502E 5.0 2.5 ADJE ADJ MCP1727 Example: CAAJ 0620 256 Example: 1727082E SN ^^0620 e 3 256 ) e 3 DS21999B-page 23 ...

Page 24

... MCP1727 8-Lead Plastic Dual Flat, No Lead Package (MF) – 3x3x0.9 mm Body [DFN] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging D N NOTE TOP VIEW A3 Number of Pins Pitch Overall Height Standoff Contact Thickness Overall Length ...

Page 25

... E 6.00 BSC E1 3.90 BSC D 4.90 BSC h 0.25 L 0.40 L1 1.04 REF φ 0° c 0.17 b 0.31 α 5° β 5° MCP1727 α c β NOM MAX 8 – 1.75 – – – 0.25 – 0.50 – 1.27 – 8° – 0.25 – 0.51 – ...

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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