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Monolithic Power Systems Inc. MP8802DJ-2.5-LF-Z
- Part No.:
- MP8802DJ-2.5-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MP8802DJ-2.5-LF-Z.pdf
- Description:
- IC REG LIN POS ADJ 250MA TSOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,534
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Product details
Overview
MP8802DJ-2.5-LF-Z from Monolithic Power Systems is a fixed-output, low-noise, low-dropout linear regulator delivering 2.5V ±2% at up to 250mA load current with 250mV dropout at full load, 70dB PSRR at 1kHz, and 125μA ground current. It operates from 2.7V to 6.5V input and integrates thermal shutdown protection in a TSOT23-5 package-designed for noise-sensitive RF and audio power rails in mobile handsets and 802.11 PC cards.
For engineers reviewing the MP8802DJ-2.5-LF-Z datasheet, MP8802DJ-2.5-LF-Z pinout, MP8802DJ-2.5-LF-Z application, or MP8802DJ-2.5-LF-Z equivalent, key selection criteria include dropout voltage under 250mA load, PSRR performance at 1MHz and 1kHz, thermal shutdown threshold (155°C), FB reference accuracy (1.222V), and compatibility with low-ESR ceramic output capacitors.
Technical Context
The MP8802DJ-2.5-LF-Z uses a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR without requiring external compensation. Its internal 1.222V bandgap reference feeds a precision feedback loop that maintains ±2% output accuracy across –40°C to +85°C ambient temperature.
Thermal protection activates at 155°C junction temperature with 30°C hysteresis, and the EN pin supports controlled startup by direct connection to IN or external logic-level enable. The device remains stable with ≥2.2μF low-ESR ceramic output capacitance and requires no feed-forward capacitor for basic operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±2% - ensures stable bias for PLL VCOs and audio codec analog sections without external resistor network. |
| Max Load Current | 250mA - sufficient for powering single-channel audio codecs or low-power RF synthesizers. |
| Dropout Voltage | 250mV at 250mA - enables regulation from 2.75V input when output is 2.5V, critical for battery-powered systems near end-of-discharge. |
| PSRR | 70dB at 1kHz / 30dB at 1MHz - suppresses switching noise from adjacent DC/DC converters feeding sensitive analog circuitry. |
| Ground Current | 125μA typical - minimizes quiescent power loss in always-on subsystems like microphone bias rails. |
| Input Voltage Range | 2.7V to 6.5V - supports single-cell Li-ion (3.0–4.2V), USB 5V, and regulated 3.3V supply domains. |
| Thermal Shutdown | 155°C with 30°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
The MP8802DJ-2.5-LF-Z is housed in a 5-pin TSOT23-5 package (JEDEC MO-193) with 0.95mm body height, 1.6mm × 2.9mm footprint, and exposed thermal pad not connected internally. Pin 1 is IN, Pin 2 is GND, Pin 3 is EN, Pin 4 is FB, and Pin 5 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Power Input | Supplies internal circuitry and pass transistor; must be bypassed with ≥1μF ceramic capacitor close to pin. |
| 2 (GND) | Reference Ground | Common return path for all internal circuits; connects to system ground plane for thermal and noise control. |
| 3 (EN) | Enable Control | Active-high logic input; tie to IN for automatic startup or drive externally for sequencing control. |
| 4 (FB) | Feedback Reference | Senses output via internal 1.222V reference; unused in fixed-output variants but retained for pin compatibility. |
| 5 (OUT) | Regulated Output | Delivers clean 2.5V; requires ≥2.2μF low-ESR ceramic capacitor directly at pin for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 300nV/√Hz output noise density at 1kHz enables clean power for VCOs and microphone preamps. |
| High PSRR architecture | PMOS pass element and optimized error amplifier deliver 70dB rejection at 1kHz without external components. |
| Thermal robustness | Integrated thermal shutdown with hysteresis protects against sustained overloads and inadequate heatsinking. |
| Load regulation precision | Better than 0.001%/mA ensures minimal output shift across full 250mA load range-critical for ADC reference supplies. |
| Low-ESR capacitor support | Stable with ceramic capacitors ≥2.2μF eliminates need for costly tantalum or polymer alternatives. |
Applications
| Mobile Handset PLL Power | 802.11 PC Card Core Supply |
|---|---|
Use Scenario: Powers phase-locked loop voltage-controlled oscillators in dual-mode GSM/WCDMA handsets where supply ripple directly impacts EVM and adjacent channel leakage. IC Role / Device Role / Timing Role: Ultra-low-noise LDO providing clean 2.5V bias to VCO core, decoupling it from noisy system DC/DC outputs. Use Value: 300nV/√Hz noise and 70dB PSRR at 1kHz reduce VCO phase noise, improving transmit spectral purity and receiver sensitivity. | Use Scenario: Supplies regulated 2.5V to WLAN baseband processors and RF transceivers on mini-PCI Express cards operating from variable 3.3V or 5V host rails. IC Role / Device Role / Timing Role: Fixed-output LDO isolating sensitive RF/analog blocks from digital switching noise on shared PCB power planes. Use Value: 250mV dropout allows operation down to 2.75V input, extending card runtime on aging or low-voltage USB ports. |
| Audio Codec Analog Rail | Microphone Bias Supply |
Use Scenario: Delivers low-noise 2.5V to stereo audio codec analog sections (DAC, ADC, headphone drivers) in portable media players. IC Role / Device Role / Timing Role: Precision LDO replacing switching converter outputs to eliminate audible beat frequencies and distortion. Use Value: ±2% output accuracy and <0.02%/mA load regulation ensure consistent SNR and THD+N performance across battery discharge cycles. | Use Scenario: Provides stable 2.5V bias to electret condenser microphones (ECM) in smartphones and voice-enabled IoT devices. IC Role / Device Role / Timing Role: Low-quiescent-current LDO powering ECM bias networks with minimal impact on standby battery life. Use Value: 125μA ground current reduces total system idle current, extending voice-recognition wake-up window in always-listening applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6206P252MR | 250mA max, 2.5V fixed, 350mV dropout at 250mA, 60dB PSRR @ 1kHz, no EN pin | Lacks enable control and thermal shutdown; limited to simpler always-on bias rails | Select when board space is constrained and enable sequencing is unnecessary. |
| Diodes Inc. AP2204K-2.5TRG1 | 250mA max, 2.5V fixed, 400mV dropout at 250mA, 55dB PSRR @ 1kHz, 180μA ground current | Higher dropout and ground current reduce efficiency and thermal margin in battery-critical designs | Prefer only if MPS supply chain constraints require second-source qualification. |
Compared with XC6206P252MR and AP2204K-2.5TRG1, the MP8802DJ-2.5-LF-Z delivers superior PSRR (70dB vs ≤60dB), lower dropout (250mV vs ≥350mV), and integrated thermal protection-making it optimal for thermally constrained, noise-sensitive RF/audio subsystems where reliability and signal integrity are non-negotiable.
Availability
MP8802DJ-2.5-LF-Z is available at Aetrix Electronics and suitable for mobile handset PLL power, 802.11 PC card core supply, audio codec analog rail, and microphone bias supply applications requiring stable component supply, RoHS-compliant packaging, and long-term industrial availability.
Supply support for MP8802DJ-2.5-LF-Z 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MP8802 belongs to MPS's ultra-low-noise LDO product line, engineered specifically for RF and audio power integrity in space-constrained portable electronics-emphasizing PSRR, dropout, and thermal resilience over cost or feature count.
FAQ
What is the minimum input voltage required for MP8802DJ-2.5-LF-Z to maintain regulation?
The MP8802DJ-2.5-LF-Z requires a minimum input voltage of 2.75V to sustain 2.5V output at 250mA load, based on its 250mV dropout specification. Below this, output voltage drops linearly with input; operation below 2.7V is outside guaranteed specifications per datasheet Section "Recommended Operating Conditions".
Can MP8802DJ-2.5-LF-Z be used with an adjustable output configuration?
No-the MP8802DJ-2.5-LF-Z is a factory-trimmed fixed-output variant with internal resistor divider set for 2.5V. While the FB pin exists for pin compatibility, it is not functional for adjustment; use MP8802DJ-ADJ for adjustable configurations requiring external resistors.
Is a feed-forward capacitor required between FB and OUT for stability?
No-stability is guaranteed with ≥2.2μF ceramic output capacitance and no feed-forward capacitor. The datasheet notes CBYP as optional for improved transient response in demanding loads, not for basic stability, and does not affect minimum capacitor requirements.
What is the thermal resistance (θJA) of the TSOT23-5 package in standard layout?
The datasheet specifies θJA = 220°C/W for the TSOT23-5 package on a 4-layer JEDEC JESD51-7 PCB. This value assumes standard copper pour; actual thermal performance improves significantly with larger GND copper area or thermal vias beneath the exposed pad region.
Does MP8802DJ-2.5-LF-Z support reverse polarity or reverse current protection?
No-the device lacks reverse-voltage or reverse-current protection circuitry. Applying reverse polarity to IN or OUT may damage the IC. External protection diodes or MOSFET-based reverse-polarity circuits must be added if system-level fault conditions demand such protection.
How does shutdown current behave when EN is pulled low?
When EN is driven below 0.4V, shutdown current is specified at 0.1–1μA (typ/max) with VIN = 5V. This ultra-low state enables true power gating in battery-backed subsystems, reducing standby drain to negligible levels while preserving fast wake-up capability.
What is the maximum allowable power dissipation at 85°C ambient temperature?
Using PD(MAX) = (TJ(MAX) − TA)/θJA = (150°C − 85°C)/220°C/W ≈ 295mW, the device can dissipate up to ~295mW continuously at 85°C ambient. At 250mA load and 2.5V output, this corresponds to a maximum input voltage of ~3.65V before thermal shutdown triggers.
MP8802DJ-2.5-LF-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 1.25V (2.5V)
- Voltage - Output (Max):
- 5V
- Voltage Dropout (Max):
- 0.19V @ 250mA (Typ), -
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 155 µA
- Current - Supply (Max):
- -
- PSRR:
- 70db ~ 30dB (1kHz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
MP8802DJ-2.5-LF-Z FAQ
1.How can I place an order for MP8802DJ-2.5-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP8802DJ-2.5-LF-Z 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 MP8802DJ-2.5-LF-Z reliable?
The price and inventory of MP8802DJ-2.5-LF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP8802DJ-2.5-LF-Z is usually 5 days.
3.What payment methods are accepted for MP8802DJ-2.5-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP8802DJ-2.5-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP8802DJ-2.5-LF-Z?
MP8802DJ-2.5-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP8802DJ-2.5-LF-Z 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 MP8802DJ-2.5-LF-Z?
For technical support, including MP8802DJ-2.5-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP8802DJ-2.5-LF-Z requirements.
6.How does Aetrix verify that MP8802DJ-2.5-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP8802DJ-2.5-LF-Z 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 MP8802DJ-2.5-LF-Z meets industry standards.
7.What is the process for return or replacement of MP8802DJ-2.5-LF-Z?
All MP8802DJ-2.5-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP8802DJ-2.5-LF-Z, 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 MP8802DJ-2.5-LF-Z part is unused and in its original packaging.
Return procedure for MP8802DJ-2.5-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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