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Monolithic Power Systems Inc. MP2000DJ-ADJ-LF-Z
- Part No.:
- MP2000DJ-ADJ-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MP2000DJ-ADJ-LF-Z.pdf
- Description:
- IC REG LIN POS ADJ 150MA TSOT23
- Quantity:
- Payment:
- Shipping:
Inventory:1,589
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Product details
Overview
MP2000DJ-ADJ-LF-Z from Monolithic Power Systems is an adjustable-output, low-dropout bipolar linear regulator delivering up to 150mA with input voltage range 1.35V–6.0V and output down to 0.5V. It features 300mV dropout at full load, ±3% output accuracy, and integrated thermal/current protection in a TSOT23-5 package. Used in battery-powered cellular phones for core voltage regulation.
For engineers reviewing the MP2000DJ-ADJ-LF-Z datasheet, MP2000DJ-ADJ-LF-Z pinout, MP2000DJ-ADJ-LF-Z application, or MP2000DJ-ADJ-LF-Z equivalent, key selection criteria include ultra-low VIN capability (1.35V), 65μA ground current at light load, FB reference voltage of 0.500V, and compatibility with low-ESR ceramic output capacitors.
Technical Context
The MP2000DJ-ADJ-LF-Z employs a PNP pass transistor architecture enabling operation below 1.4V input-critical for single-cell Li-ion or NiMH systems. Its feedback loop references a precision 0.500V internal bandgap, allowing programmable output via external resistor divider.
Thermal shutdown activates at 145°C with 30°C hysteresis, and current limit triggers at 200mA under short-circuit conditions. Shutdown quiescent current is 7μA, and EN pin logic is active-low for controlled power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.35V to 6.0V - supports single-cell battery operation without pre-regulation |
| Output Voltage Range | 0.5V to 5.0V - set externally via resistor divider; 0.5V FB reference enables sub-1V core rails |
| Max Output Current | 150mA - sufficient for low-power microcontrollers, sensors, and RF ICs |
| Dropout Voltage | 300mV at 150mA - ensures regulation even as battery discharges to 1.35V |
| Ground Current | 65μA at 1mA load - minimizes standby power loss in always-on subsystems |
| Load Regulation | 0.001%/mA - maintains tight output stability across dynamic current steps |
| PSRR | 50dB at 1kHz - suppresses ripple from noisy switching supplies or battery impedance |
Pinout & Package
MP2000DJ-ADJ-LF-Z is housed in a 5-pin TSOT23-5 package (2.9mm × 1.6mm × 0.9mm), optimized for space-constrained portable designs and thermally enhanced via exposed pad grounding (not electrically connected in standard variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power Input | Supplies pass transistor; requires ≥2.2μF ceramic bypass to GND for stability |
| 2 GND | Ground Reference | Common return for all internal circuits and external capacitors |
| 3 EN | Enable Control | Active-low digital input; <0.7V disables regulator, reducing IQ to 7μA |
| 4 FB | Feedback Sense | Monitors resistive divider output; regulates when voltage = 0.500V ±15mV |
| 5 OUT | Regulated Output | Delivers adjusted voltage; requires ≥2.2μF low-ESR ceramic capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input voltage support | Operates from 1.35V - enables direct regulation from depleted single-cell batteries |
| Low-noise output | 300nV/√Hz at 1kHz - suitable for noise-sensitive analog and RF circuitry |
| Stability with ceramic capacitors | Compatible with ≥2.2μF X5R/X7R ceramics - eliminates need for costly tantalum or electrolytic caps |
| Integrated protection | Thermal shutdown (145°C) + current limit (200mA) - prevents damage during fault conditions |
| Precision feedback reference | 0.500V ±15mV - enables accurate, temperature-stable output programming |
Applications
| Cellular Phone Baseband | Wearable Sensor Node |
|---|---|
Use Scenario: Regulating core voltage for 32-bit ARM Cortex-M0+ MCU and BLE radio in compact handset design. IC Role / Device Role / Timing Role: Primary LDO supplying VDD_CORE at 1.2V from single-cell Li-ion (3.0–4.2V nominal, down to 2.8V discharge). Use Value: 300mV dropout ensures uninterrupted operation until battery reaches 1.5V; 65μA ground current extends standby time. | Use Scenario: Powering ultra-low-power environmental sensor cluster (temperature/humidity/accelerometer) with intermittent wake-up. IC Role / Device Role / Timing Role: Always-on LDO delivering 0.9V to sensor ASIC and RTC, enabled only during measurement cycles. Use Value: 7μA shutdown current minimizes quiescent drain; 0.5V FB reference allows precise sub-1V rail generation. |
| Medical Pulse Oximeter | Industrial Handheld Scanner |
Use Scenario: Providing clean, low-noise 1.8V supply to analog front-end (AFE) and photodiode amplifier in battery-operated oximeter. IC Role / Device Role / Timing Role: Low-noise analog LDO decoupling switching DC-DC converter output. Use Value: 300nV/√Hz noise floor preserves signal integrity; 50dB PSRR rejects high-frequency switching artifacts. | Use Scenario: Supplying 3.3V to barcode imaging sensor and FPGA configuration logic in ruggedized handheld scanner. IC Role / Device Role / Timing Role: Secondary LDO post-regulator ensuring stable I/O voltage despite battery voltage sag during motor activation. Use Value: 150mA current capability handles peak imaging loads; thermal shutdown prevents overheating during extended use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3302E/MB | Fixed 3.3V output; 250mV dropout at 250mA; 1.6μA quiescent current | Lacks adjustability and sub-1.35V input support; better for fixed-rail, ultra-low-IQ apps | Select if output voltage is fixed and lowest possible IQ is critical; not suitable for adjustable or ultra-low-VIN designs |
| Torex XC6206P122MR-G | Fixed 1.2V output; 160mV dropout at 100mA; 1.0μA IQ; SOT-23-3 package | No enable or feedback pins; no adjustable option; smaller footprint but no EN/FB flexibility | Choose for cost-sensitive, space-limited fixed-voltage apps where EN control and output tuning are unnecessary |
Compared with MCP1700T-3302E/MB and XC6206P122MR-G, MP2000DJ-ADJ-LF-Z uniquely supports 0.5V–5.0V adjustment, operation down to 1.35V input, and active enable control-making it optimal for multi-rail, battery-depletion-tolerant portable systems.
Availability
MP2000DJ-ADJ-LF-Z is available at Aetrix Electronics and suitable for cellular phone baseband power, wearable sensor nodes, medical pulse oximeters, and industrial handheld scanners requiring stable component supply across product lifecycles.
Supply support for MP2000DJ-ADJ-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, headquartered in California and serving global industrial, automotive, and consumer markets.
The MP2000 series targets ultra-low-voltage, low-quiescent-current linear regulation for space- and energy-constrained portable electronics-emphasizing battery longevity, small footprint, and robustness in variable-input environments.
FAQ
What is the minimum input voltage required for regulation at 0.5V output?
The MP2000DJ-ADJ-LF-Z requires a minimum input voltage of 1.35V to regulate any output voltage, including 0.5V. This is specified in the Recommended Operating Conditions table and verified across temperature and load. At 0.5V output, the absolute minimum VIN is 1.35V per datasheet Section 3.
Can the device operate without an external feedback resistor divider?
No. The MP2000DJ-ADJ-LF-Z is an adjustable regulator requiring an external resistor divider between OUT and FB to set output voltage. The FB pin has no internal connection to OUT; omitting the divider results in undefined output behavior and potential instability.
Is the TSOT23-5 package thermally enhanced with an exposed pad?
The standard TSOT23-5 package for MP2000DJ-ADJ-LF-Z does not include an electrically connected exposed thermal pad. Thermal performance relies on PCB copper area connected to Pin 2 (GND) and proper layout per Figure 2 in the datasheet, achieving θJA = 220°C/W on a 4-layer board.
What is the maximum allowable output capacitor ESR for stable operation?
The MP2000DJ-ADJ-LF-Z is designed for stability with low-ESR ceramic capacitors ≥2.2μF and does not specify a maximum ESR limit. Datasheet Section 8 explicitly states "Stable With Low-ESR Output Capacitor" and recommends X5R/X7R dielectrics-no tantalum or electrolytic capacitors are required or recommended.
How does the EN pin behave during power-up?
The EN pin is active-low with 0.7V threshold. When left floating or pulled high, the device remains disabled. For automatic startup, connect EN directly to GND. The startup time is <1ms (per TPC07), and the regulator begins regulating once VIN exceeds 1.35V and EN is asserted low.
Does the 0.5V feedback reference vary with temperature or load?
Yes-the FB regulation voltage is specified as 0.485V to 0.515V over full operating temperature (−40°C to +125°C) and load (1mA to 150mA). This ±3% tolerance is inherent to the internal bandgap reference and is factored into output accuracy calculations when selecting feedback resistors.
MP2000DJ-ADJ-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
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 5V
- Voltage Dropout (Max):
- 0.3V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 50dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
MP2000DJ-ADJ-LF-Z FAQ
1.How can I place an order for MP2000DJ-ADJ-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2000DJ-ADJ-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 MP2000DJ-ADJ-LF-Z reliable?
The price and inventory of MP2000DJ-ADJ-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 MP2000DJ-ADJ-LF-Z is usually 5 days.
3.What payment methods are accepted for MP2000DJ-ADJ-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2000DJ-ADJ-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2000DJ-ADJ-LF-Z?
MP2000DJ-ADJ-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2000DJ-ADJ-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 MP2000DJ-ADJ-LF-Z?
For technical support, including MP2000DJ-ADJ-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2000DJ-ADJ-LF-Z requirements.
6.How does Aetrix verify that MP2000DJ-ADJ-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP2000DJ-ADJ-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 MP2000DJ-ADJ-LF-Z meets industry standards.
7.What is the process for return or replacement of MP2000DJ-ADJ-LF-Z?
All MP2000DJ-ADJ-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2000DJ-ADJ-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 MP2000DJ-ADJ-LF-Z part is unused and in its original packaging.
Return procedure for MP2000DJ-ADJ-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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