MCP1725-5002E/SN Microchip Technology, MCP1725-5002E/SN Datasheet

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MCP1725-5002E/SN

Manufacturer Part Number
MCP1725-5002E/SN
Description
IC LDO REG 500MA 5.0V 8SOIC
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP1725-5002E/SN

Regulator Topology
Positive Fixed
Voltage - Output
5V
Voltage - Input
Up to 6V
Voltage - Dropout (typical)
0.21V @ 500mA
Number Of Regulators
1
Current - Output
500mA (Min)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Primary Input Voltage
5.35V
Output Voltage
5V
Dropout Voltage Vdo
210mV
No. Of Pins
8
Output Current
500mA
Voltage Regulator Case Style
SOIC
Operating Temperature Range
-40°C To +125°C
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
6 V
Output Type
Fixed
Dropout Voltage (max)
0.35 V at 500 mA
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
Output Voltage Fixed
5V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Features
• 500 mA 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: 210 mV typical at 500 mA
• Typical Output Voltage Tolerance: 0.5%
• Stable with 1.0 µF Ceramic Output Capacitor
• Fast response to Load Transients
• Low Supply Current: 120 µA (typical)
• Low Shutdown Supply Current: 0.1 µA (typical)
• Adjustable Delay on Power Good Output
• Short Circuit Current Limiting and
• 2x3 DFN-8 and SOIC-8 Package Options
Applications
• High-Speed Driver Chipset Power
• Networking Backplane Cards
• Notebook Computers
• Network Interface Cards
• Palmtop Computers
• Video Graphics Adapters
• 2.5V to 1.XV Regulators
Package Types
© 2007 Microchip Technology Inc.
SHDN
- 0.8V, 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
Upon Request
Overtemperature Protection
GND
V
V
Adjustable (SOIC-8)
IN
IN
500 mA, Low Voltage, Low Quiescent Current LDO Regulator
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 (2x3 DFN)
V
V
IN
IN
Description
The MCP1725 is a 500 mA Low Dropout (LDO) linear
regulator that provides high current and low output
voltages in a very small package. The MCP1725
comes in a fixed (or adjustable) output voltage version,
with an output voltage range of 0.8V to 5.0V. The
500 mA output current capability, combined with the
low output voltage capability, make the MCP1725 a
good choice for new sub-1.8V output voltage LDO
applications that have high current demands.
The MCP1725 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 MCP1725 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
Note:
DFN tab is at ground potential.
MCP1725
8
7
6
5
V
ADJ
C
PWRGD
OUT
DELAY
SHDN
GND
V
V
IN
IN
Fixed (2x3 DFN)
1
2
3
4
DS22026B-page 1
DELAY
8
7
6
5
V
Sense
C
PWRGD
OUT
DELAY
pin to

Related parts for MCP1725-5002E/SN

MCP1725-5002E/SN Summary of contents

Page 1

... GND © 2007 Microchip Technology Inc. MCP1725 Description The MCP1725 is a 500 mA Low Dropout (LDO) linear regulator that provides high current and low output voltages in a very small package. The MCP1725 comes in a fixed (or adjustable) output voltage version, with an output voltage range of 0.8V to 5.0V. The ...

Page 2

... C 1 4.7 µF On Off V = 2. 4.7 µF On Off DS22026B-page 2 MCP1725 Fixed Output Voltage OUT Sense SHDN C 6 DELAY 4 GND PWRGD 5 MCP1725 Adjustable Output Voltage OUT ADJ IN 3 SHDN C 6 DELAY 4 GND PWRGD 1.8V @ 500 mA 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 © 2007 Microchip Technology Inc. PMOS I SNS Driver w/limit EA and SHDN – SHDN V REF Reference Comp 92 REF MCP1725 V OUT ADJ PWRGD T DELAY C DELAY DS22026B-page 3 ...

Page 4

... MCP1725 Functional Block Diagram - Fixed Output V IN Undervoltage Lock Out (UVLO) SHDN Overtemperature Sensing V IN SHDN Soft-Start GND DS22026B-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 MCP1725 (Note 1 1.8V for Adjustable Output, R Units Conditions Note Note 1, µ mA 0.8V to 5.0V OUT µA SHDN = GND 2. 0.8V to 5.0V, Note (Note 1) ≤ V ≤ ...

Page 6

... MCP1725 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

... A θ — 76 — JA θ — 26 — JC θ — 163 — JA θ — 38.8 — JC MCP1725 (Note 1 1.8V for Adjustable Output, R Units Conditions µs SHDN = GND GND to 95% V OUT R µV/√ 200 mA kHz, OUT µF (X7R Ceramic), OUT V = 2.5V OUT ...

Page 8

... MCP1725 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.g., outside specified power supply range) and therefore outside the warranted range ...

Page 9

... FIGURE 2-11: Voltage (2.5V Fixed). 210 = 0.01 µ 190 170 V 150 130 110 0 105 130 FIGURE 2-12: Current. MCP1725 = 1 mA, OUT . = +25° +130°C +90°C 0°C +25°C -45° Input Voltage (V) Quiescent Current vs. Input = 0 mA +135°C -45°C 0°C +25° ...

Page 10

... MCP1725 Note: Unless otherwise indicated 4.7 µF Ceramic (X7R), SHDN = V IN OUT 140 130 120 V = 2.5V OUT 110 100 V = 0.8V OUT 90 80 -45 - Junction Temperature (°C) FIGURE 2-13: Quiescent Current vs. Junction Temperature. 1 0.8V OUT 0.9 0.8 0.7 0.6 0 2. 6. ...

Page 11

... FIGURE 2-23: Rejection (PSRR) vs. Frequency (V Adj.). 0 -10 = 2.5V Fixed -20 OUT C = 3000 µF IN -30 -40 -50 -60 -70 -80 5.5 6.0 0.01 FIGURE 2-24: Rejection (PSRR) vs. Frequency (V Adj.). MCP1725 = 1 mA, OUT . = +25° 3. 200 mA IN LOAD μF OUT OUT μ 2. 0.8V OUT 0.1 ...

Page 12

... MCP1725 Note: Unless otherwise indicated 4.7 µF Ceramic (X7R), SHDN = V IN OUT 0 -10 -20 -30 -40 V =2.5V Fixed R -50 C =4.7 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 ...

Page 13

... Dynamic Line Response (2.5V Fixed). © 2007 Microchip Technology Inc 0. 2.3V (whichever is greater), I OUT Open, Fixed Output Version, and T IN DELAY FIGURE 2-33: (2.5V Fixed 500 mA). FIGURE 2-34: (2.5V Fixed 500 mA). MCP1725 = 1 mA, OUT . = +25°C A Dynamic Load Response Dynamic Load Response DS22026B-page 13 ...

Page 14

... MCP1725 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 MCP1725. 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 MCP1725 LDO is tested and ensured to supply a minimum of 0.5A of output current. The MCP1725 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 MCP1725 also incorporates an output current limit. ...

Page 17

... LDO input voltage. This output is capable of sinking 1 PWRGD V PWRGD_TH V OUT step load PWRGD FIGURE 4- µs SHDN V OUT in PG pin of the DELAY PWRGD FIGURE 4-3: Shutdown. for power good MCP1725 < 0.4V maximum VDET_PWRGD V OL Power Good Timing µ Power Good Timing from DS22026B-page 17 ...

Page 18

... MCP1725 4.6 C Input DELAY The C input is used to provide the power-up delay DELAY timing for the power good output, as discussed in the previous section. By adding a capacitor from the C pin to ground, the PWRGD power-up time DELAY delay can be adjusted from 200 µs (no capacitance 300 ms (0.1 µF of capacitance on C DELAY See Section 1.0 “ ...

Page 19

... Dropout voltage is defined as the input-to-output voltage differential at which the output voltage drops 2% below the nominal value that was measured with 0.6V differential applied. The MCP1725 LDO has R a very low dropout voltage specification of 210 mV (typical) at 0.5A of output current. See Section 1.0 “ ...

Page 20

... V 2 IN(MAX) 10 µF I VIN The total power dissipated within the MCP1725 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 3.465V results in a power dissipa- tion of 0.42 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 Appli- cation” (DS00792), for more information regarding this subject. T J(RISE) T JRISE T JRISE MCP1725 POWER DISSIPATION EXAMPLE = 2x3 DFN = 3.3V ± 2.5V = 0.5A = 60° ...

Page 22

... MCP1725 5.3.2 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 38.8°C + 60.0° 98.8° you can see from the result, this application will be operating near around a junction temperature of 100° ...

Page 23

... Microchip Technology Inc. Standard Extended Temp Voltage Code Code Options * ABL 0.8 ABR ABM 1.2 ABS ABP 1.8 ABT ABQ 2.5 ABU MCP1725 Example: ABL Voltage 750 Options * 25 3.0 3.3 5.0 ADJ Example: 250802E e SN^^0750 3 256 ...

Page 24

... MCP1725 D N NOTE TOP VIEW A3 DS22026B-page EXPOSED PAD BOTTOM VIEW A NOTE NOTE © 2007 Microchip Technology Inc. ...

Page 25

... N NOTE © 2007 Microchip Technology Inc φ MCP1725 α c β DS22026B-page 25 ...

Page 26

... MCP1725 NOTES: DS22026B-page 26 © 2007 Microchip Technology Inc. ...

Page 27

... APPENDIX A: REVISION HISTORY Revision B (December 2007) • Updated Temperature Specifications in Section 1.0 “Electrical Characteristics”. • Updated Section 6.0 “Packaging Information”. • Updated Templates. Revision A (December 2006) • Original Release of this Document. © 2007 Microchip Technology Inc. MCP1725 DS22026B-page 27 ...

Page 28

... MCP1725 NOTES: DS22026B-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: MCP1725: 500 mA Low Dropout Regulator MCP1725T: 500 mA 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

... MCP1725 NOTES: DS22026B-page 30 © 2007 Microchip Technology Inc. ...

Page 31

... 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 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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