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Monolithic Power Systems Inc. MP2152DGTF-Z
- Part No.:
- MP2152DGTF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-563, SOT-666
- Datasheet:
-
MP2152DGTF-Z.pdf
- Description:
- IC REG BUCK ADJ 2A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:4,989
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Product details
Overview
MP2152DGTF-Z from Monolithic Power Systems is a synchronous step-down DC-DC converter with integrated 75mΩ/45mΩ MOSFETs, delivering up to 2A continuous output current across a 2.5V–5.5V input range, regulating output down to 0.6V, and featuring fast output discharge for portable SSD and battery-powered systems.
For engineers reviewing the MP2152DGTF-Z datasheet, MP2152DGTF-Z pinout, MP2152DGTF-Z application, or MP2152DGTF-Z equivalent, key selection criteria include its 1.1MHz COT control architecture, 25μA quiescent current in active mode, 1% FB voltage accuracy, SOT563 package footprint, and integrated OVP/SCP/hiccup-mode protection for low-voltage embedded power rails.
Technical Context
The MP2152DGTF-Z uses constant-on-time (COT) control with VIN feed-forward to maintain stable 1.1MHz switching frequency across input and output voltage variations, enabling fast transient response without external compensation. Its sleep-mode operation and advanced asynchronous modulation (AAM) reduce quiescent current to 25μA while sustaining regulation under light loads.
Internal power stage integrates a P-channel high-side MOSFET (75mΩ RDS(ON)) and N-channel low-side MOSFET (45mΩ RDS(ON)), supporting 100% duty cycle for ultra-low dropout operation. Output discharge is implemented via an internal 13Ω resistor tied to the OUT pin, activated automatically during shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 2.5V to 5.5V - supports single-cell Li-ion, USB VBUS, and multi-cell alkaline inputs without pre-regulation. |
| Output current | 2A continuous - sufficient for core logic rails in SSDs, PMIC secondary outputs, and FPGA I/O banks. |
| Feedback voltage | 600mV ±1% - enables precise output setting from 0.6V using standard resistor dividers; minimizes VOUT error at light loads. |
| Quiescent current | 25μA - extends battery runtime in always-on sensor nodes and standby power domains. |
| Switching frequency | 1.1MHz - allows use of compact 1μH shielded inductors and reduces EMI filtering burden in space-constrained layouts. |
| Output discharge | 13Ω internal path - discharges output capacitor within milliseconds after EN deactivation, preventing back-powering of upstream circuitry. |
| OVP threshold | 115% of VFB - protects downstream ICs from overvoltage events caused by feedback divider failure or load transients. |
Pinout & Package
SOT563 (1.6mm × 1.6mm, 0.5mm pitch) package with wettable flanks for automated optical inspection. Thermal resistance θJA = 80°C/W on 2-layer PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for high-frequency switch node current; must be connected to low-impedance ground plane beneath IC. |
| 2 SW | Switching node | Drain of internal P-MOSFET; connects directly to inductor; requires short, low-inductance trace to minimize ringing and EMI. |
| 3 VIN | Input supply | Unregulated input rail; requires local 22μF ceramic decoupling capacitor placed ≤2mm from pin to suppress high di/dt spikes. |
| 4 EN | Enable control | Active-high logic input (1.2V threshold); internal 1MΩ pulldown enables default-off behavior; supports power sequencing with external MCU GPIO. |
| 5 FB | Feedback sense | High-impedance input monitoring output voltage via resistor divider; 50nA bias current ensures minimal divider error at high resistor values. |
| 6 OUT | Output voltage sense | Direct connection to output rail; provides internal sensing for fast output discharge and OVP detection independent of FB divider. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-on-time (COT) control | Enables <10μs load transient recovery without external loop compensation components, critical for burst-mode processors and memory interfaces. |
| Fast output discharge | 13Ω internal discharge path reduces VOUT to <100mV within 1ms after EN deassertion, eliminating need for external discharge FET in portable designs. |
| 100% duty-cycle operation | Supports VOUT ≈ VIN operation (e.g., 3.3V out from 3.6V Li-ion), minimizing dropout loss in battery-critical applications. |
| Hiccup-mode short-circuit protection | Disables switching and initiates soft-start retry upon sustained overload, limiting average power dissipation and preventing thermal runaway. |
| Thermal shutdown | Activates at 160°C junction temperature with 30°C hysteresis, allowing safe recovery without system reset in thermally constrained enclosures. |
Applications
| Solid-State Drive (SSD) Core Rail | Portable Medical Sensor Node |
|---|---|
|
Use Scenario: Powers NAND flash controller and DRAM cache in M.2 SATA SSDs operating from 3.3V or 5V host bus with tight thermal envelope. IC Role / Device Role / Timing Role: Primary buck regulator delivering 1.2V/2A with <100mV load transient deviation; manages power sequencing via EN pin synchronized to host reset signal. Use Value: 90% peak efficiency at 2A eliminates need for heatsinking; fast discharge prevents data corruption during hot-plug removal. |
Use Scenario: Supplies 1.8V to ultra-low-power ARM Cortex-M0+ microcontroller and analog front-end in handheld glucose meter with coin-cell battery. IC Role / Device Role / Timing Role: Always-on power rail with 25μA IQ; enters AAM mode at <1mA load to extend battery life beyond 12 months. Use Value: 1.1MHz fSW enables use of 1.0×1.0mm shielded inductor; SOT563 footprint fits sub-100mm² PCB area budget. |
| USB-Powered IoT Gateway | Multi-Function Printer Logic Supply |
|
Use Scenario: Converts 5V USB-C PD input to 3.3V for Wi-Fi SoC, Ethernet PHY, and real-time clock in edge gateway with intermittent connectivity. IC Role / Device Role / Timing Role: Secondary regulator with EN controlled by system supervisor; supports dynamic voltage scaling during transmit bursts. Use Value: 1% FB accuracy maintains SoC core voltage within spec across temperature; hiccup-mode SCP survives accidental USB cable short. |
Use Scenario: Generates 2.5V for ASIC-based print engine controller and 1.2V for DDR2 memory interface in compact office printer with shared 5V SMPS. IC Role / Device Role / Timing Role: Dual-rail generator using two MP2152DGTF-Z units; coordinated EN sequencing prevents bus contention during power-up. Use Value: Fast transient response (<5μs) sustains clean 2.5V rail during laser diode firing pulses; OUT pin sensing improves OVP reliability vs. FB-only schemes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62865RQYR | Higher 3A rating, 2.7V–6V input, but 40μA IQ and no integrated output discharge. | Better suited for higher-current applications where discharge is handled externally; larger DSBGA package increases layout complexity. | Select when >2A output or wider VIN range is required, and board space permits 1.47mm × 1.47mm DSBGA. |
| RT7295BGJ5 | 2A rating, 2.5V–5.5V input, 30μA IQ, but lacks fast output discharge and uses fixed 1.2V output (non-adjustable). | Applicable only where fixed 1.2V output suffices and discharge is managed by system-level circuitry. | Choose only for cost-sensitive, non-adjustable 1.2V rails where discharge timing is not safety-critical. |
Compared with TPS62865RQYR and RT7295BGJ5, the MP2152DGTF-Z uniquely combines ultra-low 25μA IQ, integrated 13Ω output discharge, adjustable 0.6V–5.5V output, and SOT563 footprint-making it optimal for space- and battery-constrained portable electronics requiring robust fault handling.
Availability
MP2152DGTF-Z is available at Aetrix Electronics and suitable for solid-state drives, portable medical instruments, USB-powered IoT gateways, and multi-function printers requiring stable component supply with full lifecycle support.
Supply support for MP2152DGTF-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 power management ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MP2152 series targets ultra-compact, low-IQ DC-DC conversion for battery-powered and space-constrained applications, emphasizing fast transient response, integrated protection, and minimal external component count.
FAQ
What is the maximum recommended PCB temperature rise for MP2152DGTF-Z in continuous 2A operation?
At 2A load and 5V input, the SOT563 package exhibits ~25°C case temperature rise above ambient on a 2-layer JEDEC board. For reliable long-term operation, keep ambient temperature below +85°C to ensure junction temperature remains ≤125°C, leveraging the device's 160°C thermal shutdown threshold with 30°C hysteresis.
Can MP2152DGTF-Z operate with a 100% duty cycle, and what is the minimum achievable output voltage?
Yes, MP2152DGTF-Z supports true 100% duty cycle operation, enabling VOUT ≈ VIN (e.g., 3.3V out from 3.6V input). The minimum regulated output voltage is 0.6V, set by the internal 600mV feedback reference; lower voltages require external resistive division or external reference injection, which is not supported.
How does the fast output discharge function interact with external capacitors and load circuits?
The internal 13Ω discharge path activates automatically when EN is pulled low or VIN drops below UVLO. It discharges typical 22μF output capacitors to <100mV in <1ms. External loads with reverse-biased diodes or active circuitry may slow discharge; verify total discharge time with actual load capacitance and leakage paths.
Is the MP2152DGTF-Z compatible with MPS's MPL-AL4020-1R0 inductor, and why is shielding critical?
Yes, the MPL-AL4020-1R0 (1μH, 10.1mΩ DCR) is the manufacturer-recommended inductor. Shielding is mandatory because unshielded inductors radiate strong magnetic fields at 1.1MHz, coupling into adjacent signal traces and violating CISPR-32 Class B emissions limits-especially in handheld devices with tight enclosure spacing.
What happens during a short-circuit event, and how does hiccup mode protect the IC?
Upon short-circuit detection, MP2152DGTF-Z disables switching, discharges the soft-start capacitor, waits ~10ms, then attempts restart. If the fault persists, it repeats this cycle-limiting average power dissipation to <300mW and preventing junction temperature from exceeding 160°C, thereby avoiding permanent damage without requiring external current-limiting components.
Does the EN pin have internal pull-down, and what is the recommended external EN drive strength?
Yes, a 1MΩ internal pull-down ensures default-off behavior when EN is floating. For reliable turn-on, drive EN with ≥100μA sink/source capability (e.g., standard GPIO). Avoid weak pull-ups >100kΩ, as leakage currents may cause marginal enable thresholds near the 1.2V logic high specification.
How does the 1% FB voltage accuracy impact output tolerance across temperature and line/load conditions?
The 1% FB accuracy (594–606mV at 25°C) contributes ≤±12mV error to a 1.2V output. Combined with resistor tolerance and temperature drift, total VOUT variation remains within ±2% over -40°C to +125°C junction temperature and full 0–2A load range, meeting typical microcontroller core rail specifications.
MP2152DGTF-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MP
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A
- Frequency - Switching:
- 1.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
MP2152DGTF-Z FAQ
1.How can I place an order for MP2152DGTF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2152DGTF-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 MP2152DGTF-Z reliable?
The price and inventory of MP2152DGTF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2152DGTF-Z is usually 5 days.
3.What payment methods are accepted for MP2152DGTF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2152DGTF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2152DGTF-Z?
MP2152DGTF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2152DGTF-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 MP2152DGTF-Z?
For technical support, including MP2152DGTF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2152DGTF-Z requirements.
6.How does Aetrix verify that MP2152DGTF-Z is sourced from the original manufacturer or authorized distributors?
All MP2152DGTF-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 MP2152DGTF-Z meets industry standards.
7.What is the process for return or replacement of MP2152DGTF-Z?
All MP2152DGTF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2152DGTF-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 MP2152DGTF-Z part is unused and in its original packaging.
Return procedure for MP2152DGTF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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