MCP1824T-3302E/OT Microchip Technology, MCP1824T-3302E/OT Datasheet

IC LDO REG 300MA 3.3V SOT23-5

MCP1824T-3302E/OT

Manufacturer Part Number
MCP1824T-3302E/OT
Description
IC LDO REG 300MA 3.3V SOT23-5
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP1824T-3302E/OT

Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 6V
Voltage - Dropout (typical)
0.2V @ 300mA
Number Of Regulators
1
Current - Output
300mA (Min)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Primary Input Voltage
3.62V
Output Voltage
3.3V
Dropout Voltage Vdo
200mV
No. Of Pins
5
Output Current
300mA
Voltage Regulator Case Style
SOT-23
Operating Temperature Range
-40°C To +125°C
Output Voltage Fixed
3.3V
Rohs Compliant
Yes
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
Other names
MCP1824T-3302E/OTTR

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Features
• 300 mA Output Current Capability
• Input Operating Voltage Range: 2.1V 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: 200 mV Typical at 300 mA
• Typical Output Voltage Tolerance: 0.4%
• 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)
• Fixed Delay on Power Good Output
• Short Circuit Current Limiting and
• 5-Lead Plastic SOT-223, SOT-23 Package
• 3-Lead Plastic SOT-223 Package Option
Applications
• High-Speed Driver Chipset Power
• Networking Backplane Cards
• Notebook Computers
• Network Interface Cards
• Palmtop Computers
• 2.5V to 1.XV Regulators
300 mA, Low Voltage, Low Quiescent Current LDO Regulator
(MCP1824 only)
- 0.8V, 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
Upon Request
(MCP1824 only)
(MCP1824 only)
Overtemperature Protection
Options (MCP1824)
(MCP1824S)
2007 Microchip Technology Inc.
MCP1824/MCP1824S
Description
The MCP1824/MCP1824S is a 300 mA Low Dropout
(LDO) linear regulator that provides high current and
low output voltages. The MCP1824 comes in a fixed or
adjustable output voltage version, with an output
voltage range of 0.8V to 5.0V. The 300 mA output
current capability, combined with the low output voltage
capability, make the MCP1824 a good choice for new
sub-1.8V output voltage LDO applications that have
high current demands. The MCP1824S is a 3-pin fixed
voltage version.
The MCP1824/MCP1824S 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 MCP1824/MCP1824S is typically
less than 120 µA over the entire input voltage range,
making it attractive for portable computing applications
that demand high output current. The MCP1824
versions have a Shutdown (SHDN) pin. When shut
down, the quiescent current is reduced to less than
0.1 µA.
On the MCP1824 fixed output versions, 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). The
PWRGD delay is internally fixed at 110 µs (typical).
The overtemperature and short circuit current-limiting
provide additional protection for the LDO during system
fault conditions.
DS22070A-page 1

Related parts for MCP1824T-3302E/OT

MCP1824T-3302E/OT Summary of contents

Page 1

... Notebook Computers • Network Interface Cards • Palmtop Computers • 2.5V to 1.XV Regulators 2007 Microchip Technology Inc. Description The MCP1824/MCP1824S is a 300 mA Low Dropout (LDO) linear regulator that provides high current and low output voltages. The MCP1824 comes in a fixed or adjustable output voltage version, with an output voltage range of 0 ...

Page 2

... GND (TAB GND (TAB) GND (TAB) SHDN PWRGD OUT OUT 5 PWRGD ADJ V 6 GND (TAB) GND (TAB) DS22070A-page SOT-23 Adjustable GND (TAB) SHDN ADJ V OUT OUT — — MCP1824S SOT-223 Pin SOT-223 GND (TAB OUT 4 GND (TAB) 2007 Microchip Technology Inc. ...

Page 3

... Typical Applications On SHDN Off V = 2. 4.7 µF On SHDN Off 2. 4.7 µF 2007 Microchip Technology Inc. MCP1824/MCP1824S MCP1824 Fixed Output Voltage R 100 kΩ OUT GND MCP1824 Adjustable Output Voltage V ADJ R 40 kΩ OUT GND PWRGD 1.8V @ 300 mA OUT µF ...

Page 4

... MCP1824/MCP1824S Functional Block Diagram - Adjustable Output (MCP1824 Undervoltage Lock Out (UVLO) SHDN Overtemperature Sensing V IN SHDN Soft-Start GND DS22070A-page 4 PMOS I SNS Driver w/limit EA and SHDN – SHDN V REF Reference Comp 92 REF V OUT ADJ/SENSE T DELAY 2007 Microchip Technology Inc. ...

Page 5

... Functional Block Diagram - Fixed Output (MCP1824S Undervoltage Lock Out (UVLO) SHDN Overtemperature Sensing V IN SHDN Soft-Start GND 2007 Microchip Technology Inc. MCP1824/MCP1824S PMOS I SNS Driver w/limit EA and SHDN – SHDN V REF Reference Comp 92 REF V OUT Sense T DELAY DS22070A-page 5 ...

Page 6

... MCP1824/MCP1824S Functional Block Diagram - Fixed Output (MCP1824 Undervoltage Lock Out (UVLO) SHDN Overtemperature Sensing V IN SHDN Soft-Start GND DS22070A-page 6 PMOS I SNS Driver w/limit EA and SHDN – SHDN V REF Reference Comp 92 REF V OUT Sense PWRGD T DELAY 2007 Microchip Technology Inc. ...

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. 2007 Microchip Technology Inc. MCP1824/MCP1824S † Notice: Stresses above those listed under “Maximum Rat- ings” ...

Page 8

... Fixed OUT %V OUT 1.2 mA, PWRGD SINK ADJ = 0.200V PWRGD 6.0V PWRGD IN µs Rising Edge kΩ PULLUP + V DROPOUT(MAX). is the desired set point output R is the highest voltage measured over the + V . DROPOUT(MAX) ). Exceeding the maximum allowable power 2007 Microchip Technology Inc. ...

Page 9

... 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. 2007 Microchip Technology Inc. MCP1824/MCP1824S = ...

Page 10

... JA θ — 15 — JC θ — 256 — °C/W JA θ — 81 — JC θ — 62 — °C/W JA θ — 15 — JC Conditions Steady State Transient EIA/JEDEC JESD51-751-7 4 Layer Board EIA/JEDEC JESD51-751-7 4 Layer Board EIA/JEDEC JESD51-751-7 4 Layer Board 2007 Microchip Technology Inc. ...

Page 11

... IN 120 110 100 V =3.0V V =2. -45 - Temperature (°C) FIGURE 2-3: Quiescent Current vs. Junction Temperature (Adjustable Version). 2007 Microchip Technology Inc. MCP1824/MCP1824S = 4.7 µF Ceramic (X7R 4.7 µF Ceramic (X7R 0.10 0.08 0.06 0.04 I OUT 0.02 0.00 -0.02 -0.04 -0.06 -0.08 -0. -45 FIGURE 2-4: Temperature (Adjustable Version) ...

Page 12

... Input Voltage (V) Quiescent Current vs. Input V = 2.1V for V =0. 3.5V for V =3. =3.0V OUT V =0.8V OUT 50 100 150 200 250 300 Load Current (mA) Ground Current vs. Load 2007 Microchip Technology Inc. ...

Page 13

... I = 200 mA OUT 0. 300 mA OUT 0.01 0.00 -45 - Temperature (°C) FIGURE 2-15: Line Regulation vs. Temperature. 2007 Microchip Technology Inc. MCP1824/MCP1824S = 4.7 µF Ceramic (X7R 4.7 µF Ceramic (X7R 0.042 0.038 I OUT 0.034 0.030 I OUT 0.026 0.022 0.018 0.014 I OUT 0.010 105 130 ...

Page 14

... Frequency (kHz) Output Noise Voltage V =1.2V Adj R V =2. 200 mV p-p INAC μ =10 mA OUT 0 100 1000 Frequency (kHz) Power Supply Ripple V =3.0V (Fixed =3. =200 mV p-p INAC μ =10 mA OUT 0 100 1000 Frequency (kHz) Power Supply Ripple 2007 Microchip Technology Inc. ...

Page 15

... OUT FIGURE 2-25: Startup from V (Adjustable Version). FIGURE 2-26: Startup from Shutdown (Adjustable Version). FIGURE 2-27: Power Good (PWRGD) Timing. 2007 Microchip Technology Inc. MCP1824/MCP1824S = 4.7 µF Ceramic (X7R 4.7 µF Ceramic (X7R FIGURE 2-28: IN Timing. FIGURE 2-29: FIGURE 2-30 mA, OUT ...

Page 16

... Dynamic Load Response. DS22070A-page 16 = 4.7 µF Ceramic (X7R 4.7 µF Ceramic (X7R 900 800 700 600 500 400 300 200 100 FIGURE 2-33: Voltage Vs Load. FIGURE 2-34 mA, OUT . PWRGD Sink Current (mA) Power Good Pulldown Startup Current. 2007 Microchip Technology Inc. ...

Page 17

... GND pin to the return of the output capacitor. Ground planes help lower inductance and voltage spikes caused by fast transient load currents and are recommended for applications that are subjected to fast load transients. 2007 Microchip Technology Inc. MCP1824/MCP1824S Table 3-1. SOT-23 ...

Page 18

... See Section 4.8 “Over- temperature Protection” for more information on overtemperature shutdown. V OUT µ Equation 4-1 for R 4-2. CALCULATING ADJ PIN RESISTOR VALUES V OUT ------------- – ⎛ ⎞ ⎠ ADJ = LDO Output Voltage = ADJ Pin Voltage (typically 0.41V) 2007 Microchip Technology Inc ...

Page 19

... Once this threshold has been exceeded, the power good time delay is started (shown as T Electrical Characteristics table). The power good time 2007 Microchip Technology Inc. MCP1824/MCP1824S delay is fixed at 110 µs (typical). After the time delay period, the PWRGD output will go high, indicating that the output voltage is stable and within regulation limits ...

Page 20

... See Section 5.0 “Application Circuits/ Issues” for more information on LDO power dissipation and junction temperature the LDO ° C, the LDO ° which point the LDO ° 2007 Microchip Technology Inc. ...

Page 21

... Maximum input voltage IN(MAX LDO minimum output voltage OUT(MIN) 2007 Microchip Technology Inc. MCP1824/MCP1824S In addition to the LDO pass element power dissipation, there is power dissipation within the MCP1824/ MCP1824S as a result of quiescent or ground current. The power dissipation as a result of the ground current ...

Page 22

... Application” (DS00792), for more information regarding this subject. T J(RISE) T JRISE T JRISE = 3.3V ± 2.5V = 300 mA = 60° – IN(MAX) OUT(MIN) OUT(MAX) = ((3.3V x 1.05) – (2.5V x 0.975)) x 300 mA = 0.308 Watts Device Junction Temperature Rise ) Rθ TOTAL JA = 0.308 W x 62° C/W = 19.1°C 2007 Microchip Technology Inc. ...

Page 23

... D(MAX) SOT-23-5 (256°C/Watt Rθ (125°C – 60°C)/ 256°C/W D(MAX 0.254W D(MAX) From this table, you can see the difference in maximum allowable power dissipation between the SOT-223-5 package and the SOT-23-5 package. 2007 Microchip Technology Inc. MCP1824/MCP1824S DS22070A-page 23 ...

Page 24

... 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. DS22070A-page 24 Marking Part Number Code 1824S08 1824S12 1824S18 1824S25 1824S30 1824S33 1824S50 Example: 1824S08 EDB0710 256 2007 Microchip Technology Inc. ...

Page 25

... Package Marking Information (Continued) 5-Lead SOT-223 (MCP1824) XXXXXXX XXXYYWW NNN 5-Lead SOT-23 MCP1824T-0802E/OT XXNN MCP1824T-1202E/OT MCP1824T-1802E/OT 1 MCP1824T-2502E/OT MCP1824T-3002E/OT MCP1824T-3302E/OT MCP1824T-5002E/OT 2007 Microchip Technology Inc. MCP1824/MCP1824S Marking Part Number Code MCP1824T-0802E/DC 1824082 MCP1824T-1202E/DC 1824122 MCP1824T-1802E/DC 1824182 MCP1824T-2502E/DC 1824252 MCP1824T-3002E/DC 1824302 MCP1824T-3302E/DC 1824332 ...

Page 26

... MCP1824/MCP1824S DS22070A-page φ 2007 Microchip Technology Inc. ...

Page 27

... 2007 Microchip Technology Inc. MCP1824/MCP1824S φ DS22070A-page 27 ...

Page 28

... MCP1824/MCP1824S DS22070A-page φ 2007 Microchip Technology Inc. ...

Page 29

... APPENDIX A: REVISION HISTORY Revision A (November 2007) • Original Release of this Document. 2007 Microchip Technology Inc. MCP1824/MCP1824S DS22070A-page 29 ...

Page 30

... MCP1824/MCP1824S NOTES: DS22070A-page 30 2007 Microchip Technology Inc. ...

Page 31

... X Device Output Feature Tolerance Voltage Code Device: MCP1824: 300 mA Low Dropout Regulator MCP1824T: 300 mA Low Dropout Regulator Tape and Reel MCP1824S: 300 mA Low Dropout Regulator MCP1824ST: 300 mA Low Dropout Regulator Tape and Reel Output Voltage *: 08 = 0.8V “Standard” 1.2V “Standard” ...

Page 32

... MCP1824/MCP1824S NOTES: DS22070A-page 32 2007 Microchip Technology Inc. ...

Page 33

... 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 34

... 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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