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onsemi MC33762DM-3030RG
- Part No.:
- MC33762DM-3030RG
- Manufacturer:
- onsemi
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MC33762DM-3030RG.pdf
- Description:
- IC REG LINEAR 3V/3V MICRO8
- Quantity:
- Payment:
- Shipping:
Inventory:2,301
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Product details
Overview
MC33762DM-3030RG from onsemi is a dual ultra-low-noise, low-dropout linear regulator with independent 3.0 V outputs per channel, 80 mA nominal output current, 40 µVRMS integrated noise (100 Hz–100 kHz), and 40 µs typical startup time from OFF to ON - designed for RF-sensitive portable systems such as TDMA phones and VCO power rails.
For engineers reviewing the MC33762DM-3030RG datasheet, pinout, applications, or equivalent options, key selection criteria include dual-channel isolation, absence of external bypass capacitor requirement, fast transient recovery in bursting loads, ±1.5% output voltage accuracy at 25°C, and thermal shutdown at 125°C.
Technical Context
The MC33762DM-3030RG integrates two fully independent LDO regulators on separate dice, enabling >60 dB inter-channel isolation and eliminating crosstalk in mixed-signal systems. Each regulator features a PNP pass transistor with antisaturation protection and load-transient improvement circuitry that actively detects output overshoot decay and forces rapid return to regulation - critical for burst-mode operation.
Its bandgap reference and error amplifier are optimized for static line regulation better than −75 dB and ripple rejection of −70 dB at 1 kHz, while maintaining stability with 1.0 µF ceramic or tantalum output capacitors across 0–3.0 Ω ESR - no minimum ESR or bias current required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V per channel, ±1.5% tolerance at 25°C - ensures stable biasing for precision analog/RF circuits without post-regulation trimming. |
| Dropout Voltage | 90 mV @ 30 mA, 160 mV @ 80 mA - enables operation from low headroom supplies (e.g., single Li-ion cell down to ~3.1 V). |
| Noise Performance | 40 µVRMS (100 Hz–100 kHz), 150 nV/√Hz @ 100 Hz - eliminates need for external bypass capacitor, preserving fast 40 µs startup. |
| Line Regulation | Better than −75 dB - suppresses input supply ripple and prevents downstream signal corruption in noisy battery-fed systems. |
| Load Transient Recovery | Active undershoot suppression architecture - reduces negative voltage excursions during rapid load bursts (e.g., TDMA transmit pulses). |
| Enable Threshold | 900 mV logic-high turn-on, 150 mV logic-low shutdown - compatible with 1.0 V platform I/O and low-power microcontroller GPIOs. |
| Thermal Shutdown | 125°C junction temperature cutoff - protects against sustained overload or poor PCB thermal design without external sensing. |
Pinout & Package
MC33762DM-3030RG is housed in an 8-pin Micro8 (Case 846A) surface-mount package with exposed pad for thermal enhancement and Pb-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND1 | Dedicated ground return for Regulator 1 - isolates noise coupling between channels. |
| 2 | En1 | Enable input for Regulator 1 - 900 mV threshold allows direct interface with 1.0 V logic. |
| 3 | GND2 | Dedicated ground return for Regulator 2 - enables true dual-rail independence. |
| 4 | En2 | Enable input for Regulator 2 - supports independent power sequencing of two analog subsystems. |
| 5 | Vcc2 | Input supply for Regulator 2 - requires local 1.0 µF decoupling to minimize PSRR degradation. |
| 6 | Vout2 | 3.0 V regulated output for Channel 2 - stable with 1.0 µF ceramic capacitor; no ESR constraints. |
| 7 | Vcc1 | Input supply for Regulator 1 - electrically isolated from Vcc2 to prevent shared supply noise injection. |
| 8 | Vout1 | 3.0 V regulated output for Channel 1 - delivers ultra-low-noise power to sensitive RF stages without external filtering. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent LDOs on separate dice | Eliminates inter-channel crosstalk; supports isolated analog/RF and digital power domains on same PCB. |
| No external bypass capacitor required | Reduces BOM count and board area while enabling 40 µs wake-up - critical for duty-cycled portable devices. |
| Load transient improvement circuitry | Actively terminates overshoot decay phase to restore regulation readiness before next load burst - prevents undershoot in TDMA systems. |
| Ultra-low quiescent current | 0.1 µA typical OFF-state current - extends battery life in always-on monitoring applications. |
| Stable with wide-range output capacitors | Accepts 1.0 µF ceramic or tantalum caps with ESR from <1 mΩ to 3.0 Ω - simplifies layout and avoids capacitor qualification overhead. |
Applications
| RF Transceiver Power | VCO Bias Supply |
|---|---|
Use Scenario: Powering the RF front-end and synthesizer section of a TDMA cellular handset during high-duty-cycle transmit bursts. IC Role / Device Role / Timing Role: Dual-channel LDO delivering clean, isolated 3.0 V rails to PA driver and VCO core with simultaneous enable control. Use Value: Prevents burst-induced undershoot via active transient recovery, maintaining VCO frequency stability and minimizing EVM degradation. |
Use Scenario: Providing ultra-low-noise bias to a voltage-controlled oscillator in a GPS receiver or wireless sensor node. IC Role / Device Role / Timing Role: Low-noise 3.0 V regulator powering VCO tuning port and core circuitry without external bypass capacitor. Use Value: Achieves 40 µVRMS noise floor without added capacitance, preserving phase noise performance and reducing start-up latency. |
| Battery-Powered Medical Sensor | Dual-Rail Analog Front-End |
Use Scenario: Powering low-power analog signal chain (ECG amplifier, ADC reference) in a wearable biosensor operating from coin-cell battery. IC Role / Device Role / Timing Role: Dual-output LDO supplying 3.0 V to analog section and 3.0 V to digital controller with independent enable pins. Use Value: Enables deep-sleep mode (0.1 µA OFF current) and fast wake-up (40 µs), extending operational lifetime without compromising signal integrity. |
Use Scenario: Delivering matched, isolated 3.0 V supplies to differential op-amp stages and precision ADC in industrial data acquisition modules. IC Role / Device Role / Timing Role: Dual LDO with separate grounds and dice providing rail-to-rail noise isolation between signal conditioning and digitization paths. Use Value: Maintains >60 dB inter-channel PSRR and eliminates ground bounce coupling - critical for 16-bit+ measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-noise LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A4700RGWR | Single-channel, 1 A output, 4.7 µVRMS noise, requires 2.2 µF output cap, no integrated load transient improvement. | Higher current, lower noise, but lacks dual-channel isolation and burst-mode optimization. | Choose when higher output current and lower noise are prioritized over dual-rail independence and TDMA burst resilience. |
| NCP1117DT33RKG | Single-channel, 1 A, 75 µVRMS noise, 1.2 V dropout @ 800 mA, no enable pin, no load transient enhancement. | Cost-optimized general-purpose LDO; unsuitable for RF or burst-mode timing-critical use. | Choose only for non-sensitive digital loads where noise, isolation, and fast transient response are not required. |
Compared with TPS7A4700RGWR and NCP1117DT33RKG, the MC33762DM-3030RG uniquely delivers dual 3.0 V rails with die-level isolation, 40 µs startup without bypass caps, and active load transient recovery - making it irreplaceable for multi-domain RF and burst-powered portable designs.
Availability
MC33762DM-3030RG is available at Aetrix Electronics and suitable for RF transceiver power, VCO bias supply, battery-powered medical sensors, dual-rail analog front-ends, and TDMA burst-system applications requiring stable component supply across extended temperature ranges (−40°C to +85°C).
Supply support for MC33762DM-3030RG 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, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT markets.
The MC33762DM-3030RG belongs to onsemi's ultra-low-noise dual LDO product line, engineered specifically for RF-sensitive portable electronics where simultaneous low noise, fast wake-up, and channel isolation are mandatory.
FAQ
What is the maximum input voltage rating for MC33762DM-3030RG?
The MC33762DM-3030RG has an absolute maximum input voltage of 12 V per channel (Vcc1 and Vcc2). Operation above this level risks permanent damage. For reliable long-term use, the recommended maximum input is 6.0 V when Vout = 3.0 V, ensuring adequate headroom while staying within safe power dissipation limits at full load.
Does MC33762DM-3030RG require an external bypass capacitor for noise reduction?
No, the MC33762DM-3030RG does not require an external bypass capacitor. Its proprietary low-noise architecture achieves 40 µVRMS (100 Hz–100 kHz) without one - unlike conventional LDOs. This omission directly enables its 40 µs typical startup time and eliminates associated layout complexity and component cost.
How does the load transient improvement feature of MC33762DM-3030RG function in practice?
The MC33762DM-3030RG monitors output voltage decay after load removal and actively forces the regulator back into closed-loop regulation before the next load step arrives. This prevents the deep undershoot seen in standard LDOs during rapid burst sequences - a behavior validated in TDMA phone applications where load transitions occur every few hundred microseconds.
What is the thermal shutdown threshold and hysteresis of MC33762DM-3030RG?
The MC33762DM-3030RG activates thermal shutdown at a typical junction temperature of 125°C. Once triggered, the device disables both regulators until junction temperature falls below approximately 110°C - a built-in hysteresis of ~15°C prevents oscillatory cycling during marginal thermal conditions.
Can MC33762DM-3030RG operate with ceramic output capacitors?
Yes, the MC33762DM-3030RG is explicitly designed to be stable with 1.0 µF ceramic output capacitors across a wide ESR range (1 mΩ to 3.0 Ω). No minimum ESR or bias current is required - simplifying capacitor selection and enabling use of small-footprint X5R/X7R MLCCs without stability risk.
MC33762DM-3030RG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 12V
- Voltage - Output (Min/Fixed):
- 3V, 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 80mA, 0.25V @ 80mA
- Current - Output:
- 80mA, 80mA
- Current - Quiescent (Iq):
- 180 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Antisaturation, Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
MC33762DM-3030RG FAQ
1.How can I place an order for MC33762DM-3030RG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33762DM-3030RG 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 MC33762DM-3030RG reliable?
The price and inventory of MC33762DM-3030RG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33762DM-3030RG is usually 5 days.
3.What payment methods are accepted for MC33762DM-3030RG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33762DM-3030RG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33762DM-3030RG?
MC33762DM-3030RG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33762DM-3030RG 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 MC33762DM-3030RG?
For technical support, including MC33762DM-3030RG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33762DM-3030RG requirements.
6.How does Aetrix verify that MC33762DM-3030RG is sourced from the original manufacturer or authorized distributors?
All MC33762DM-3030RG 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 MC33762DM-3030RG meets industry standards.
7.What is the process for return or replacement of MC33762DM-3030RG?
All MC33762DM-3030RG units undergo pre-shipment inspection (PSI). If there is an issue with MC33762DM-3030RG, 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 MC33762DM-3030RG part is unused and in its original packaging.
Return procedure for MC33762DM-3030RG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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