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onsemi MC33762DM-2525R2
- Part No.:
- MC33762DM-2525R2
- Manufacturer:
- onsemi
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MC33762DM-2525R2.pdf
- Description:
- IC REG LINEAR 2.5V/2.5V MICRO8
- Quantity:
- Payment:
- Shipping:
Inventory:1,210
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Product details
Overview
MC33762DM-2525R2 from onsemi is a dual ultra-low-noise, low-dropout linear regulator delivering two independent 2.5 V outputs with 80 mA nominal current per channel, 40 µVRMS noise (100 Hz–100 kHz), and 40 µs typical startup time - designed for RF-sensitive portable systems requiring fast wake-up and high PSRR.
For engineers reviewing the MC33762DM-2525R2 datasheet, pinout, applications, or equivalent options, key selection criteria include dual-channel isolation, dropout voltage at 30/80 mA, ON/OFF control thresholds (900 mV ON, 150 mV OFF), thermal shutdown behavior, and stability with 1.0 µF ceramic output capacitors.
Technical Context
The MC33762DM-2525R2 integrates two fully independent LDO regulators on separate dice to maximize channel-to-channel isolation-critical for noise-sensitive RF subsystems. Each regulator features PNP pass transistors with antisaturation protection and load transient improvement circuitry that actively suppresses undershoot during burst-mode operation.
Its architecture eliminates the need for external bandgap bypass capacitors, enabling sub-40 µs wake-up response while maintaining 150 nV/√Hz noise density at 100 Hz and −70 dB ripple rejection at 1 kHz-achieving stable regulation without ESR constraints on output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V per channel, ±1.5% tolerance at 25°C; ±3.0% over −40°C to +85°C |
| Dropout Voltage | 90 mV @ 30 mA, 160 mV @ 80 mA - enables operation with minimal input–output differential |
| Noise Performance | 40 µVRMS (100 Hz–100 kHz), 150 nV/√Hz @ 100 Hz - sufficient for VCO biasing without external filtering |
| Startup Time | 40 µs typical from OFF to regulated 2.5 V output - supports rapid power cycling in TDMA systems |
| PSRR / Ripple Rejection | −70 dB @ 1 kHz - attenuates switching supply noise before sensitive analog stages |
| ON/OFF Threshold | 900 mV logic high enables regulation; 150 mV logic low disables - compatible with 1.0 V platform I/O |
| Thermal Shutdown | Activates at 125°C junction temperature - protects against sustained overload or poor heatsinking |
Pinout & Package
Housed in an 8-pin Micro8 package (Case 846A), the MC33762DM-2525R2 provides physical and electrical isolation between channels via separate ground, enable, input, and output pins for each regulator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND1) | Ground reference for Regulator 1 | Must be routed separately from GND2 to preserve channel isolation and minimize crosstalk |
| 2 (EN1) | Enable input for Regulator 1 | Logic-level control: ≥900 mV activates; ≤150 mV disables - no pull-up required |
| 3 (GND2) | Ground reference for Regulator 2 | Independent return path prevents shared-impedance coupling between outputs |
| 4 (EN2) | Enable input for Regulator 2 | Asynchronous, independent control of second channel - supports staggered power sequencing |
| 5 (VCC2) | Input supply for Regulator 2 | Accepts 3.5 V to 12 V; requires local 1.0 µF decoupling capacitor near pin |
| 6 (VOUT2) | 2.5 V regulated output for Channel 2 | Stable with 1.0 µF ceramic capacitor; no minimum ESR requirement |
| 7 (VCC1) | Input supply for Regulator 1 | Electrically isolated from VCC2 - allows different input sources per channel |
| 8 (VOUT1) | 2.5 V regulated output for Channel 1 | Delivers clean 2.5 V at up to 80 mA; output impedance <2 Ω up to 100 kHz |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent LDOs on separate dice | Eliminates inter-channel noise coupling - critical for simultaneous RF/analog operation |
| No external bypass capacitor required | Reduces BOM count and PCB area while enabling 40 µs wake-up and 40 µVRMS noise |
| Load transient improvement architecture | Suppresses undershoot during burst-mode load steps - maintains VCO tuning stability |
| 1.0 V platform compatible enable logic | 900 mV ON threshold interfaces directly with low-voltage microcontrollers without level-shifting |
| Stable with 1.0 µF ceramic output capacitors | Removes ESR dependency - simplifies layout and supports compact, high-reliability designs |
Applications
| RF Transceiver Power Supply | VCO Biasing Circuit |
|---|---|
Use Scenario: Powering dual-path RF transceivers in TDMA cellular handsets where transmit/receive bursts demand rapid, low-noise voltage stabilization. IC Role / Device Role / Timing Role: Dual-channel LDO providing isolated 2.5 V rails for PA driver and LNA stages with synchronized or independent enable control. Use Value: 40 µs startup and 40 µVRMS noise prevent LO pulling and phase noise degradation during burst transitions. | Use Scenario: Delivering ultra-clean bias voltage to voltage-controlled oscillators in PLL-based frequency synthesizers. IC Role / Device Role / Timing Role: Low-noise, low-impedance 2.5 V source with high PSRR to suppress supply-induced jitter on VCO tuning line. Use Value: −70 dB ripple rejection at 1 kHz and 150 nV/√Hz spectral density directly improve integrated phase noise performance. |
| Battery-Powered Medical Sensor | Dual-Core MCU Core Voltage |
Use Scenario: Powering low-power analog front-end (AFE) and ADC in portable ECG monitors operating from single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Dual LDO supplying isolated 2.5 V for precision sensor signal conditioning and 2.5 V for 16-bit SAR ADC reference. Use Value: Separate dice and ground pins prevent digital switching noise from corrupting analog measurement integrity. | Use Scenario: Providing tightly regulated, fast-response core voltages for dual-core ARM Cortex-M microcontrollers in industrial edge nodes. IC Role / Device Role / Timing Role: Independent 2.5 V supplies for CPU and DSP subsystems, each controlled via dedicated EN pins for dynamic power gating. Use Value: 90 mV dropout at 30 mA extends battery runtime; 40 µs wake-up enables aggressive sleep-state entry/exit cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A2025PDQNR | Single-channel, 2.5 V, 300 mA; 12 µVRMS noise; requires 0.1 µF min output cap; no dual-die isolation | Lacks second output and channel isolation - unsuitable for RF co-location or burst-mode dual-rail systems | Select only when single-rail, higher-current, lower-noise operation is needed and dual-channel independence is unnecessary |
| NCP1117DT25RKG | Single-channel, 2.5 V, 1 A; 45 µVRMS noise; 1.2 V dropout @ 800 mA; no enable pin or fast startup | No ON/OFF control, no fast wake-up, no dual-output capability - incompatible with portable burst-mode use cases | Consider only for cost-sensitive, non-portable, fixed-on applications where high current and simplicity outweigh noise/isolation requirements |
Compared with TPS7A2025PDQNR and NCP1117DT25RKG, the MC33762DM-2525R2 uniquely delivers two isolated, fast-waking, ultra-low-noise 2.5 V rails in one Micro8 package - making it irreplaceable for space-constrained, battery-powered RF and precision analog systems requiring dual-rail autonomy.
Availability
MC33762DM-2525R2 is available at Aetrix Electronics and suitable for RF transceiver power supply, VCO biasing, battery-powered medical sensors, and dual-core MCU core voltage applications requiring stable component supply across production lifecycles.
Supply support for MC33762DM-2525R2 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 focused on energy-efficient innovation for automotive, industrial, cloud, and IoT applications.
The MC33762DM-2525R2 belongs to onsemi's precision analog LDO portfolio, engineered specifically for noise-critical portable and RF systems demanding dual-rail independence, fast transient response, and minimal external components.
FAQ
What is the maximum input voltage rating for the MC33762DM-2525R2?
The MC33762DM-2525R2 supports a maximum input voltage of 12 V on both VCC1 and VCC2 pins, as specified in its Absolute Maximum Ratings table. Operation above this level risks permanent damage. For reliable long-term performance, design inputs to remain within the recommended operating range of VOUT + 1.0 V to 6.0 V - meaning 3.5 V to 6.0 V for the 2.5 V outputs of the MC33762DM-2525R2. Thermal limits must also be observed when operating near maximum voltage and current.
Does the MC33762DM-2525R2 require an external bypass capacitor for noise reduction?
No, the MC33762DM-2525R2 does not require an external bypass capacitor for noise reduction. Its proprietary low-noise architecture achieves 40 µVRMS (100 Hz–100 kHz) and 150 nV/√Hz spectral density without any bypass capacitor - a key differentiator from conventional LDOs. This omission reduces component count, saves PCB area, and enables the 40 µs typical startup time. The MC33762DM-2525R2 remains stable with only a 1.0 µF ceramic output capacitor per channel.
Can both regulators in the MC33762DM-2525R2 be enabled simultaneously using a single control signal?
Yes, both regulators in the MC33762DM-2525R2 can be enabled simultaneously using a single control signal by connecting EN1 and EN2 together. Each enable pin has identical thresholds (≥900 mV to turn on, ≤150 mV to turn off) and high input impedance (~250 kΩ), so no additional buffering or level-shifting is needed. However, independent control is supported - and often preferred - to sequence power delivery or reduce quiescent current during partial system sleep modes.
What output capacitor value and type are required for stable operation of the MC33762DM-2525R2?
The MC33762DM-2525R2 requires a minimum 1.0 µF output capacitor per channel for stable operation, and it is explicitly characterized and guaranteed with ceramic capacitors. Unlike many LDOs, it imposes no minimum ESR requirement - accepting ceramic, tantalum, or polymer capacitors with ESR from a few mΩ up to 3.0 Ω. The 1.0 µF value ensures adequate transient response and loop stability across temperature and load; larger values may further improve load step immunity but are not necessary for basic regulation.
Is the MC33762DM-2525R2 RoHS-compliant and lead-free?
Yes, the MC33762DM-2525R2 is RoHS-compliant and available in a lead-free (Pb-free) package. The "G" suffix variant (MC33762DM-2525R2G) explicitly denotes the Pb-free Micro8 package, and the datasheet confirms Pb-free packaging is offered for all versions. The device meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements and is qualified for reflow soldering per industry-standard profiles. Aetrix Electronics supplies only RoHS-compliant, traceable lots of the MC33762DM-2525R2.
MC33762DM-2525R2 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):
- 2.5V, 2.5V
- 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-2525R2 FAQ
1.How can I place an order for MC33762DM-2525R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33762DM-2525R2 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-2525R2 reliable?
The price and inventory of MC33762DM-2525R2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33762DM-2525R2 is usually 5 days.
3.What payment methods are accepted for MC33762DM-2525R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33762DM-2525R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33762DM-2525R2?
MC33762DM-2525R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33762DM-2525R2 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-2525R2?
For technical support, including MC33762DM-2525R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33762DM-2525R2 requirements.
6.How does Aetrix verify that MC33762DM-2525R2 is sourced from the original manufacturer or authorized distributors?
All MC33762DM-2525R2 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-2525R2 meets industry standards.
7.What is the process for return or replacement of MC33762DM-2525R2?
All MC33762DM-2525R2 units undergo pre-shipment inspection (PSI). If there is an issue with MC33762DM-2525R2, 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-2525R2 part is unused and in its original packaging.
Return procedure for MC33762DM-2525R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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