My Inquiry
My Account
Microchip Technology MCP1824T-3002E/DC
- Part No.:
- MCP1824T-3002E/DC
- Manufacturer:
- Microchip Technology
- Package:
- SOT-223-6
- Datasheet:
-
MCP1824T-3002E/DC.pdf
- Description:
- IC REG LINEAR 3V 300MA SOT223-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,263
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MCP1824T-3002E/DC from Microchip Technology is a 300 mA, fixed-output 3.0 V low-dropout (LDO) linear regulator in SOT-223-5 package. It operates from 2.1 V to 6.0 V input, delivers ±0.5% output voltage tolerance at 300 mA, and features 200 mV typical dropout voltage. Designed for portable computing and networking backplane power rails, it integrates shutdown control (SHDN), power-good (PWRGD) indication, and thermal/short-circuit protection.
For engineers reviewing the MCP1824T-3002E/DC datasheet, MCP1824T-3002E/DC pinout, MCP1824T-3002E/DC application, or MCP1824T-3002E/DC equivalent, key selection criteria include its 3.0 V fixed output, 0.1 µA shutdown current, 110 µs PWRGD delay, stability with 1.0 µF ceramic output capacitor, and operation across –40°C to +125°C junction temperature.
Technical Context
The MCP1824T-3002E/DC implements a PMOS pass transistor architecture enabling low dropout and fast transient response. Its internal reference (0.410 V nominal at ADJ pin) feeds an error amplifier that regulates output via feedback-though unused in this fixed-voltage variant, the ADJ pin remains functional as sense input for load regulation accuracy.
It integrates undervoltage lockout (UVLO), soft-start, overtemperature shutdown (150°C trip, 10°C hysteresis), and current limiting (720 mA short-circuit peak). The PWRGD output asserts high after 110 µs when VOUT reaches 92% of 3.0 V (i.e., ≥2.76 V), with 2% hysteresis to prevent chatter during brownout recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±0.5% (ensures stable core logic supply for 3.3 V–tolerant I/O domains) |
| Max Output Current | 300 mA continuous (supports high-current FPGA I/O banks or DDR termination) |
| Dropout Voltage | 200 mV typical at 300 mA (enables operation down to 3.2 V input from single-cell Li-ion or 3.3 V rail) |
| Quiescent Current | 120 µA typical (minimizes battery drain in always-on subsystems) |
| Shutdown Current | 0.1 µA typical (enables ultra-low-power sleep states in portable systems) |
| PWRGD Delay | 110 µs typical (provides deterministic power sequencing timing for downstream logic) |
| Input Voltage Range | 2.1 V to 6.0 V (compatible with wide-input DC-DC stages and multi-cell battery packs) |
Pinout & Package
Package: 5-lead plastic SOT-223 with exposed thermal pad (EP) connected to GND. Thermal resistance θJA = 62°C/W on 4-layer board enables 300 mA operation without heatsink at ambient ≤85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: SHDN | Active-low enable input | Pulls low to disable regulator and reduce supply current to 0.1 µA; requires ≥45% VIN for logic high |
| 2: VIN | Unregulated input supply | Accepts 2.1–6.0 V; decoupling capacitor (≥1 µF ceramic) recommended near pin |
| 3: GND | Power ground reference | Connects to PCB ground plane; EP (underside) is electrically tied to this pin |
| 4: VOUT | Regulated 3.0 V output | Delivers up to 300 mA; requires ≥1.0 µF ceramic output capacitor for stability |
| 5: PWRGD | Open-drain power-good flag | Sinks ≥1.2 mA when active; asserts high after 110 µs once VOUT ≥2.76 V (92% of 3.0 V) |
Key Features
| Feature | Design Value |
|---|---|
| Stable with 1.0 µF ceramic output capacitor | Reduces BOM cost and PCB area vs. larger tantalum/aluminum alternatives; improves PSRR above 10 kHz |
| Fast load transient response | Recovers within <10 µs from 50–300 mA step load change-critical for burst-mode digital loads |
| Integrated PWRGD with fixed 110 µs delay | Eliminates external timing components for reliable power sequencing in multi-rail systems |
| Thermal shutdown with 10°C hysteresis | Prevents latch-up during overload; allows safe auto-recovery after cooling below 140°C |
| Low 0.4% typical output voltage tolerance | Meets tight margin requirements for 3.0 V analog sensor interfaces and precision ADC references |
Applications
| Networking Backplane Cards | Notebook Computer Core Logic |
|---|---|
Use Scenario: Powering 3.3 V-tolerant FPGA configuration I/O banks on high-speed telecom backplanes. IC Role / Device Role / Timing Role: Primary 3.0 V LDO supplying configurable logic I/O, synchronized to PWRGD for FPGA initialization handshake. Use Value: 200 mV dropout enables use of 3.3 V intermediate rail; 0.1 µA shutdown current extends system suspend duration. |
Use Scenario: Regulating 3.0 V supply for embedded controller (EC) and keyboard controller interface in ultrabook designs. IC Role / Device Role / Timing Role: Always-on LDO delivering standby power; PWRGD signals EC readiness to host CPU during resume. Use Value: 120 µA quiescent current minimizes battery discharge during lid-closed sleep; SOT-223 thermal performance avoids derating. |
| 2.5 V to 1.XV Regulators | Network Interface Cards (NICs) |
Use Scenario: Generating sub-1.8 V logic supplies (e.g., 1.2 V, 1.5 V) using cascaded regulation from 3.0 V rail. IC Role / Device Role / Timing Role: Pre-regulator stage feeding downstream adjustable LDOs or buck converters; PWRGD enables downstream enable sequencing. Use Value: Tight ±0.5% output tolerance ensures accurate setpoint for secondary regulators; low noise supports clean analog/RF subsystems. |
Use Scenario: Providing 3.0 V bias to PHY transceivers and management controllers on PCIe-based NICs. IC Role / Device Role / Timing Role: Dedicated LDO per PHY lane group; SHDN pin controlled by PCIe link state machine for dynamic power gating. Use Value: 300 mA capacity supports multi-lane 10/25 GbE PHYs; fast transient response prevents signal integrity degradation during link training. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A2030PDBVR | 300 mA, 3.0 V fixed, 165 mV dropout at 300 mA; 65 µA IQ; no PWRGD or SHDN | Lacks power-good signaling and shutdown control-requires external logic for sequencing | Select when minimal quiescent current is critical and system-level sequencing is handled externally |
| MCP1700T-3002E/MB | 250 mA, 3.0 V fixed, 178 mV dropout at 250 mA; 1.6 µA IQ; no PWRGD; SOT-23-3 package | Lower current rating and no PWRGD; smaller footprint but higher thermal resistance (θJA = 256°C/W) | Select for space-constrained, lower-current applications where PWRGD is not required |
Compared with TPS7A2030PDBVR and MCP1700T-3002E/MB, the MCP1824T-3002E/DC uniquely combines 300 mA output, integrated PWRGD with fixed delay, active shutdown, and SOT-223 thermal performance-making it optimal for sequenced, high-reliability embedded power rails.
Availability
MCP1824T-3002E/DC is available at Aetrix Electronics and suitable for notebook computers, networking backplane cards, and network interface cards requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and commercial deployments.
Supply support for MCP1824T-3002E/DC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and power management ICs, with emphasis on reliability, longevity, and design-in support for industrial and automotive markets.
The MCP1824 product line delivers high-current, low-quiescent-current LDOs optimized for portable and networking equipment where tight regulation, fast transients, and integrated power sequencing are essential.
FAQ
What is the maximum input voltage for the MCP1824T-3002E/DC?
The MCP1824T-3002E/DC supports an absolute maximum input voltage of 6.5 V, with recommended operating range from 2.1 V to 6.0 V. Exceeding 6.5 V risks permanent damage. At 3.0 V output, minimum valid input is 3.2 V (3.0 V + 200 mV typical dropout) to maintain regulation under full 300 mA load.
Does the MCP1824T-3002E/DC require an external resistor divider for 3.0 V output?
No. The MCP1824T-3002E/DC is a fixed-output variant-its 3.0 V regulation is achieved internally. The ADJ pin is internally connected and does not require external resistors. External resistors are only needed for adjustable versions like MCP1824T-3002E/DC's adjustable siblings.
How does the PWRGD output behave during power-up and shutdown of the MCP1824T-3002E/DC?
During power-up, PWRGD remains low until VOUT reaches ≥2.76 V (92% of 3.0 V), then asserts high after a fixed 110 µs delay. During shutdown (SHDN pulled low), PWRGD immediately goes low. Hysteresis (2%) prevents false toggling if VOUT dips near threshold during transient conditions.
Can the MCP1824T-3002E/DC operate with a 1.0 µF ceramic output capacitor?
Yes-the MCP1824T-3002E/DC is explicitly characterized and guaranteed stable with ≥1.0 µF X7R ceramic output capacitors. This eliminates need for larger, higher-ESR alternatives and improves high-frequency PSRR and noise performance compared to tantalum or electrolytic types.
What thermal considerations apply to the MCP1824T-3002E/DC in SOT-223 package?
The SOT-223 package has θJA = 62°C/W on a 4-layer board. At 300 mA and 3.2 V input (0.2 V dropout), power dissipation is ~60 mW, resulting in ~3.7°C rise above ambient-well within safe limits. The exposed pad (EP) must be soldered to a thermal pad connected to GND for optimal heat transfer.
MCP1824T-3002E/DC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-223-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.32V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 220 µA
- Current - Supply (Max):
- -
- PSRR:
- 55dB (100Hz)
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-5
MCP1824T-3002E/DC FAQ
1.How can I place an order for MCP1824T-3002E/DC through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP1824T-3002E/DC on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MCP1824T-3002E/DC reliable?
The price and inventory of MCP1824T-3002E/DC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP1824T-3002E/DC is usually 5 days.
3.What payment methods are accepted for MCP1824T-3002E/DC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP1824T-3002E/DC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP1824T-3002E/DC?
MCP1824T-3002E/DC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP1824T-3002E/DC order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MCP1824T-3002E/DC?
For technical support, including MCP1824T-3002E/DC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP1824T-3002E/DC requirements.
6.How does Aetrix verify that MCP1824T-3002E/DC is sourced from the original manufacturer or authorized distributors?
All MCP1824T-3002E/DC products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCP1824T-3002E/DC meets industry standards.
7.What is the process for return or replacement of MCP1824T-3002E/DC?
All MCP1824T-3002E/DC units undergo pre-shipment inspection (PSI). If there is an issue with MCP1824T-3002E/DC, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MCP1824T-3002E/DC part is unused and in its original packaging.
Return procedure for MCP1824T-3002E/DC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MCP1824T-3002E/DC Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
