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onsemi MC33375D-5.0R2G
- Part No.:
- MC33375D-5.0R2G
- Manufacturer:
- onsemi
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC33375D-5.0R2G.pdf
- Description:
- IC REG LINEAR 5V 300MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,062
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Product details
Overview
MC33375D-5.0R2G from onsemi is a 5.0 V fixed-output, 300 mA micropower low-dropout linear voltage regulator in SOIC-8 package with logic-level ON/OFF control, 260 mV dropout at 300 mA, ±2% output tolerance over −40 °C to +125 °C, and internal thermal/current limiting-designed for battery-powered industrial sensors and portable instrumentation.
For engineers reviewing the MC33375D-5.0R2G datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at full load, quiescent current in ON/OFF modes, stability with minimal output capacitance (0.22 µF), and AEC-Q100-compatibility readiness via NCV-series variants.
Technical Context
The MC33375D-5.0R2G uses a PNP pass transistor architecture enabling ultra-low dropout (25 mV at 10 mA; 260 mV at 300 mA) and micropower operation (125 µA typical quiescent current in ON mode, 0.3 µA in OFF mode). Its ON/OFF control pin accepts TTL/CMOS-compatible logic levels (VCTRL ≥ 2.4 V for ON, ≤ 0.5 V for OFF) and requires no external pull-up.
Stability is guaranteed with only 0.22 µF ceramic output capacitance for the 5.0 V version, and the device integrates thermal shutdown (trip at 150 °C, no hysteresis) and current limiting (450 mA typical), eliminating need for external protection circuitry in space-constrained designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.00 V ±2% over −40 °C to +125 °C - ensures stable MCU core or analog sensor supply across automotive/industrial temperature ranges |
| Max Output Current | 300 mA - supports moderate-power microcontrollers, ADCs, or RF transceivers without external boost stages |
| Dropout Voltage | 260 mV at 300 mA - enables regulation from 5.26 V input, critical for single-cell Li-ion or 5 V rail margining |
| Quiescent Current | 125 µA (ON), 0.3 µA (OFF) - extends battery life in always-on monitoring systems with periodic wake-up cycles |
| Line/Load Regulation | 10 mV line, 25 mV load - maintains tight voltage accuracy despite input ripple or dynamic load steps |
| Ripple Rejection | 65 dB at 120 Hz - suppresses AC-DC adapter noise or switching converter coupling into sensitive analog rails |
| Thermal Shutdown | 150 °C junction - protects against sustained overload or poor PCB heatsinking without external thermal sensor |
Pinout & Package
MC33375D-5.0R2G is housed in SOIC-8 (Case 751, Pb-free), with exposed pad not electrically connected. Package dimensions: 4.9 × 3.9 × 1.5 mm (L × W × H), 1.27 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (VIN) | Main power input; must be ≥ (VOUT + dropout) for regulation; bypass with ≥0.33 µF capacitor |
| 2 | Ground (GND) | Analog ground reference; connect directly to low-impedance PCB ground plane near VIN and VOUT pins |
| 3 | Output (VOUT) | Regulated 5.0 V output; requires ≥0.22 µF ceramic capacitor (X7R, low-ESR) placed adjacent to pin |
| 4 | ON/OFF Control | Active-low enable: <0.5 V = OFF (output disabled, IQ ≈ 0.3 µA); >2.4 V = ON (regulation active) |
| 5–8 | Ground (GND) | Four dedicated GND terminals - reduce IR drop and improve PSRR by connecting all to same ground node |
Key Features
| Feature | Design Value |
|---|---|
| Logic-Level ON/OFF Control | Direct interface with 3.3 V or 5 V microcontroller GPIO-no level-shifter required |
| Ultra-Low Dropout | 25 mV at 10 mA enables operation from weak or aging batteries down to 5.025 V input |
| Minimal External Capacitance | Stable with only 0.22 µF output cap (5.0 V version)-reduces BOM count and board area vs. legacy LDOs |
| Integrated Protection | Current limit (450 mA) + thermal shutdown (150 °C) prevent damage during short-circuit or overload events |
| Pb-Free & AEC-Q100 Ready | RoHS-compliant SOIC-8 package; NCV-series variants qualified for automotive applications |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Battery-powered wearable ECG sensor operating 24/7 with periodic Bluetooth transmission. IC Role / Device Role / Timing Role: Primary 5.0 V supply for analog front-end and BLE SoC, enabled only during data upload. Use Value: 0.3 µA OFF-mode current extends 200 mAh coin-cell life to >2 years; 260 mV dropout preserves runtime as battery discharges to 5.26 V. |
Use Scenario: DIN-rail mounted analog input module converting 4–20 mA signals in factory automation. IC Role / Device Role / Timing Role: Local 5.0 V rail for precision ADC, isolated digital isolators, and microcontroller peripherals. Use Value: ±2% output tolerance over −40 °C to +85 °C ensures measurement accuracy; integrated thermal shutdown prevents field failure during ambient heat buildup. |
| Automotive Body Control Units | Smart Home Hub Power Management |
Use Scenario: Low-power door module powering window motor drivers and CAN transceiver during sleep mode. IC Role / Device Role / Timing Role: Always-on 5.0 V supply for wake-up logic and CAN bus monitoring, shut down during deep sleep. Use Value: 125 µA ON-mode IQ minimizes parasitic drain; NCV33375D-5.0R2G variant offers AEC-Q100 qualification for direct replacement. |
Use Scenario: Wi-Fi/Zigbee hub with multiple USB peripherals and real-time clock backup. IC Role / Device Role / Timing Role: Secondary 5.0 V rail for USB port power switching and RTC backup regulator control logic. Use Value: 65 dB ripple rejection cleans noisy 5 V SMPS output; 0.22 µF output cap simplifies layout in dense multi-layer PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCP1117ST50T3G | Higher dropout (1.1 V @ 800 mA), higher IQ (6 mA), TO-220/SOT-223 only - no SOIC-8 option | Requires larger input headroom; unsuitable for battery systems below 6.1 V; better for high-current, non-portable use | Select when >300 mA load or TO-220 heatsinking is needed; avoid for space-constrained or low-IQ designs |
| MCP1700T-5002E/MB | Lower IQ (1.6 µA ON), but only 250 mA max output; SOT-23-3 package - no ON/OFF pin or SOIC-8 footprint | Lacks enable control and thermal shutdown; limited to ultra-low-power, fixed-layout applications | Choose for sub-250 mA, ultra-low-power apps where enable and protection are unnecessary |
Compared with NCP1117ST50T3G and MCP1700T-5002E/MB, MC33375D-5.0R2G uniquely balances 300 mA capability, SOIC-8 footprint, logic-enable control, and micropower operation-making it optimal for battery-aware industrial and portable electronics where board space, efficiency, and controllability are jointly constrained.
Availability
MC33375D-5.0R2G is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, and automotive body control units requiring stable component supply with long-term lifecycle support.
Supply support for MC33375D-5.0R2G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The MC33375 series was designed specifically for battery-powered and thermally constrained applications demanding micropower operation, low dropout, and integrated protection-targeting portable instrumentation, remote sensors, and automotive sub-systems.
FAQ
What is the minimum input voltage required for MC33375D-5.0R2G to maintain regulation?
The MC33375D-5.0R2G requires an input voltage ≥ (5.0 V + dropout voltage). At 300 mA load, dropout is 260 mV, so minimum VIN = 5.26 V. At lighter loads (e.g., 10 mA), dropout drops to 25 mV, allowing VIN as low as 5.025 V while maintaining regulation. Input must also stay within absolute maximum rating of 13 V.
Can MC33375D-5.0R2G operate without an external output capacitor?
No. MC33375D-5.0R2G requires a minimum 0.22 µF ceramic output capacitor for stability. Omitting it risks oscillation and output voltage collapse under load. The capacitor must be placed adjacent to the VOUT and GND pins; X7R dielectric and low-ESR construction are recommended for reliable performance across temperature.
Is MC33375D-5.0R2G pin-compatible with other regulators in the MC33375 family?
Yes. All MC33375D-x.xR2G variants (e.g., MC33375D-3.3R2G, MC33375D-2.5R2G) share identical SOIC-8 pinout and footprint. Only the output voltage differs; no PCB redesign is needed when changing voltage options within the D-suffix SOIC-8 series.
Does MC33375D-5.0R2G have built-in reverse polarity protection?
No. MC33375D-5.0R2G does not include reverse-voltage protection. Applying reversed input voltage may damage the device. An external series Schottky diode (or ideal diode controller) is required if reverse polarity exposure is possible in the target application.
How does thermal shutdown behave in MC33375D-5.0R2G during sustained overload?
MC33375D-5.0R2G thermal shutdown activates at ~150 °C junction temperature with no hysteresis. During sustained overload, the device cycles ON/OFF as temperature crosses the threshold-output appears to oscillate. This is intentional behavior; proper PCB copper area (per Figure 26) or derating is required to avoid continuous cycling.
MC33375D-5.0R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 13V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 200 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (120Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MC33375D-5.0R2G FAQ
1.How can I place an order for MC33375D-5.0R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33375D-5.0R2G 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 MC33375D-5.0R2G reliable?
The price and inventory of MC33375D-5.0R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33375D-5.0R2G is usually 5 days.
3.What payment methods are accepted for MC33375D-5.0R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33375D-5.0R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33375D-5.0R2G?
MC33375D-5.0R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33375D-5.0R2G 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 MC33375D-5.0R2G?
For technical support, including MC33375D-5.0R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33375D-5.0R2G requirements.
6.How does Aetrix verify that MC33375D-5.0R2G is sourced from the original manufacturer or authorized distributors?
All MC33375D-5.0R2G 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 MC33375D-5.0R2G meets industry standards.
7.What is the process for return or replacement of MC33375D-5.0R2G?
All MC33375D-5.0R2G units undergo pre-shipment inspection (PSI). If there is an issue with MC33375D-5.0R2G, 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 MC33375D-5.0R2G part is unused and in its original packaging.
Return procedure for MC33375D-5.0R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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