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: 0.4%
• Stable with 1.0 µF Ceramic Output Capacitor
• Fast response to Load Transients
• Low Supply Current: 140 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
© 2006 Microchip Technology Inc.
SHDN
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
1.5A, Low Voltage, Low Quiescent Current
8
7
6
5
V
ADJ
C
PWRGD
OUT
DELAY
LDO Regulator Product Brief
SHDN
GND
V
V
IN
IN
Fixed (SOIC-8)
1
2
3
4
8
7
6
5
Preliminary
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
140 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 1 ms 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
DS21997A-page 1
DELAY
8
7
6
5
V
Sense
C
PWRGD
OUT
DELAY
pin to

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MCP1727-1802E/SN Summary of contents

Page 1

... GND © 2006 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

... C 1 4.7 µF On Off V = 2. 4.7 µF On Off DS21997A-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 5 Preliminary OUT µ 100 kΩ 1000 pF PWRGD ...

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. PMOS I SNS Driver w/limit EA and SHDN – SHDN V REF Reference Comp 92 REF Preliminary MCP1727 V OUT ADJ PWRGD T DELAY C DELAY DS21997A-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 DS21997A-page 4 PMOS I SNS Driver w/limit EA and SHDN – SHDN V REF Reference Comp 92 REF Preliminary V OUT Sense PWRGD T DELAY C DELAY © 2006 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 DROPOUT(MAX) , θ Preliminary MCP1727 Units Conditions V Note 1 µ mA Note 0.8V to 5.0V OUT 3 µA SHDN = GND 2. 0.8V to 5.0V, Note 1 R (Note 1) ≤ V ≤ 6V %/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 Voltage Regulation Dropout Characteristics Dropout Voltage V Power Good Characteristics PWRGD Input Voltage Operating V PWRGD_VIN Range PWRGD Threshold Voltage V PWRGD_TH ...

Page 7

... T -40 — +125 J T — — +150 J T -65 — +150 A θ — 41 — JA θ — 150 — JA Preliminary MCP1727 Units Conditions µV/√ 500 mA kHz, OUT µF (X7R OUT Ceramic 2.5V OUT 100 Hz µF, OUT I = 100 mA, OUT pk-pk, INAC µF IN ° 100 µ ...

Page 8

... MCP1727 NOTES: DS21997A-page 8 Preliminary © 2006 Microchip Technology Inc. ...

Page 9

... PowerMate, PowerTool, REAL ICE, rfLAB, rfPICDEM, 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 10

... 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 Preliminary © 2006 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-399 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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