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Monolithic Power Systems Inc. MP2152GTF-33-Z
- Part No.:
- MP2152GTF-33-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-563, SOT-666
- Datasheet:
-
MP2152GTF-33-Z.pdf
- Description:
- IC REG BUCK 3.3V 2A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:2,679
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Product details
Overview
MP2152GTF-33-Z from Monolithic Power Systems is a fixed-output 3.3V, 2A synchronous step-down DC/DC converter in SOT563 package, featuring 25μA quiescent current, 1.1MHz switching frequency, and integrated 75mΩ/45mΩ MOSFETs. It delivers stable power to low-voltage I/O rails in portable instruments and wireless networking cards under 2.5–5.5V input.
For engineers reviewing the MP2152GTF-33-Z datasheet, MP2152GTF-33-Z pinout, MP2152GTF-33-Z application, or MP2152GTF-33-Z equivalent, key selection considerations include its fixed 3.3V output with ±1% FB accuracy, output discharge capability, EN-controlled sequencing, thermal shutdown at 160°C, and compatibility with compact 1µH inductors and 22µF ceramic output capacitors.
Technical Context
The MP2152GTF-33-Z employs constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across 2.5–5.5V input and 3.3V output, enabling fast transient response without external compensation. Its sleep-mode operation reduces IQ to 25μA at light load while preserving regulation via valley-FB clamping.
Fault management includes cycle-by-cycle current limiting (2.8A P-FET peak), hiccup-mode short-circuit protection, VOUT over-voltage protection (115% threshold, 10% hysteresis), and absolute VIN OVP at 6.1V with 400mV hysteresis. The device integrates output discharge via internal MOSFET when disabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1% over -40°C to +125°C - ensures precise rail generation for 3.3V logic and interface circuits. |
| Max Output Current | 2A continuous - supports high-current peripherals like Wi-Fi modules or SSD controllers without external boost. |
| Quiescent Current | 25μA at 5V input - enables >1-year battery life in always-on IoT sensors with 200mAh coin cells. |
| Switching Frequency | 1.1MHz - allows use of small 1µH shielded inductors and minimizes EMI in space-constrained PCB layouts. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB-powered (5V), and dual-cell alkaline (3.2–4.8V) sources. |
| Feedback Accuracy | ±1% at 25°C, ±1.5% over full temperature range - guarantees tight regulation for sensitive analog and RF circuitry. |
| Thermal Shutdown | 160°C with 30°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking in sealed enclosures. |
Pinout & Package
SOT563 (2.1mm × 1.6mm × 0.55mm) thermally enhanced package with exposed pad for improved heat dissipation in high-density portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for high-frequency switch node current; must be connected to solid ground plane beneath exposed pad. |
| 2 SW | Switching node | Drain of internal high-side P-MOSFET; connects directly to inductor; requires minimal loop area to reduce EMI and voltage spikes. |
| 3 VIN | Input supply | 2.5–5.5V unregulated input; requires local 10µF ceramic capacitor placed within 2mm of pin to suppress input ripple. |
| 4 EN | Enable control | Active-high logic input (1.2V threshold); internal 1MΩ pulldown enables default disable and automatic output discharge on deactivation. |
| 5 PG | Power good indicator | Open-drain output asserting high when VOUT is within ±10%/+15% window; requires external 100–500kΩ pull-up to VIN for system power sequencing. |
| 6 OUT | Regulated output | 3.3V power rail; connects to load and output capacitor; internal sensing ensures accurate feedback despite trace IR drop. |
Key Features
| Feature | Design Value |
|---|---|
| Output discharge | Internal MOSFET actively discharges output capacitor when EN = low - eliminates residual voltage that could disrupt downstream logic reset timing. |
| VOUT over-voltage protection | Dynamically regulates low-side FET to clamp output at 115% of 3.3V (3.8V) - prevents damage to 3.3V I/O pins during transient faults or feedback divider failure. |
| 100% duty cycle operation | Supports dropout operation down to VIN = VOUT - maintains regulation even as battery discharges to 3.3V, extending usable runtime. |
| Constant-on-time control | No external compensation required - simplifies layout and eliminates stability risks associated with traditional voltage-mode PWM loops. |
| Short-circuit hiccup mode | Disables switching, discharges soft-start cap, then retries - limits average power dissipation during sustained fault, avoiding thermal runaway. |
Applications
| Wireless Networking Cards | Portable Instruments |
|---|---|
Use Scenario: Powering 802.11ac baseband ICs and RF front-end modules in compact M.2 or mini-PCIe form factor cards. IC Role / Device Role / Timing Role: Primary 3.3V system rail regulator delivering clean, low-noise power synchronized to host enable signals via EN pin. Use Value: 25μA IQ extends standby time between beacon intervals; 1.1MHz switching avoids interference with 2.4GHz/5GHz bands. | Use Scenario: Supplying precision ADCs, op-amps, and microcontroller cores in handheld multimeters and environmental sensors. IC Role / Device Role / Timing Role: Main 3.3V analog/digital supply with tight ±1% regulation ensuring measurement accuracy across temperature. Use Value: Output discharge clears residual charge before MCU wake-up, preventing false readings during cold start. |
| Battery-Powered Devices | Low-Voltage I/O System Power |
Use Scenario: Regulating power for BLE SoCs and display drivers in wearables using single-cell Li-ion batteries. IC Role / Device Role / Timing Role: High-efficiency buck converter operating across full battery discharge curve (4.2V → 3.0V) with 100% duty cycle support. Use Value: 75mΩ/45mΩ RDS(on) MOSFETs minimize conduction loss at 2A peak loads, improving runtime by >8% vs. comparable 300mΩ solutions. | Use Scenario: Generating 3.3V for FPGA I/O banks, USB PHYs, and SD card interfaces in embedded edge gateways. IC Role / Device Role / Timing Role: Fixed-output point-of-load regulator with PG signal for FPGA configuration sequencing and system health monitoring. Use Value: PG output provides deterministic power-good assertion within 150μs of regulation, enabling reliable FPGA startup handshake. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | 3.3V fixed, 300mA max output, 2.05MHz switching, 17μA IQ - lower current rating and higher frequency. | Targeted at ultra-low-power microcontrollers and sensors, not 2A loads. | Select only if load current remains ≤300mA and board space permits smaller inductor footprint. |
| RT7295BGJ6F | 3.3V fixed, 2A output, 500kHz switching, 35μA IQ, no output discharge - lacks active discharge and runs at half frequency. | Suitable for cost-sensitive industrial controls where EMI filtering is less critical and discharge is handled externally. | Choose when lower BOM cost is prioritized over fast turn-off transients and lowest possible IQ. |
Compared with TPS62231DRYR and RT7295BGJ6F, the MP2152GTF-33-Z uniquely balances 2A capability, 25μA IQ, 1.1MHz operation, and integrated output discharge - making it optimal for space-constrained, battery-sensitive 3.3V systems requiring robust fault handling and seamless power sequencing.
Availability
MP2152GTF-33-Z is available at Aetrix Electronics and suitable for wireless networking cards, portable instruments, and battery-powered devices requiring stable component supply with guaranteed long-term sourcing.
Supply support for MP2152GTF-33-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.
The MP2152 product line targets ultra-compact, high-efficiency DC/DC conversion for portable and battery-operated systems, emphasizing low IQ, small footprint, and integrated protection features.
FAQ
What is the minimum input voltage required for MP2152GTF-33-Z to regulate 3.3V output?
The MP2152GTF-33-Z has an under-voltage lockout (UVLO) rising threshold of 2.45V typical. Regulation begins once VIN exceeds this level, and 100% duty cycle operation allows stable 3.3V output down to VIN = 3.3V - critical for maintaining function as Li-ion batteries discharge below 3.5V.
Does MP2152GTF-33-Z require external feedback resistors?
No. The MP2152GTF-33-Z is a fixed-output variant with internal resistor divider set to 3.3V; FB pin is not connected and must be left floating or tied to GND per datasheet guidance. Only adjustable versions (e.g., MP2152GTF) use external R1/R2.
How does the output discharge function operate during shutdown?
When EN is pulled low, the MP2152GTF-33-Z activates an internal discharge MOSFET between OUT and GND with ~200Ω resistance, discharging a 22µF output capacitor from 3.3V to <0.5V in approximately 15ms - eliminating residual voltage that could cause latch-up in downstream logic.
Can MP2152GTF-33-Z be used with ceramic output capacitors only?
Yes. The COT control architecture is inherently stable with low-ESR ceramic capacitors. Recommended output capacitance is ≥22µF X5R/X7R 0603 or 0805, placed within 3mm of OUT and GND pins. No electrolytic or tantalum capacitors are needed or recommended.
What thermal derating applies to the 2A output current rating?
At TA = 85°C with standard 2-layer PCB (EV2152-TF-00A), maximum continuous output current drops to ~1.6A due to θJA = 80°C/W. Full 2A is guaranteed only up to TA = 60°C unless enhanced thermal vias and copper pour are implemented per MPS layout guidelines.
Is the PG pin functional on MP2152GTF-33-Z?
Yes. As a fixed-output version, MP2152GTF-33-Z includes the open-drain PG pin. It asserts high when VOUT is within -10%/+15% of 3.3V (i.e., 2.97V–3.80V) and pulls low outside that window, supporting reliable power sequencing in FPGA and processor-based systems.
What is the soft-start time and how is it controlled?
The MP2152GTF-33-Z has a fixed internal soft-start time of 0.5ms typical, during which the output voltage ramps linearly from 0V to 3.3V. This is not user-adjustable but prevents inrush current and overshoot - especially critical when powering large capacitive loads like LCD bias rails.
MP2152GTF-33-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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- 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
MP2152GTF-33-Z FAQ
1.How can I place an order for MP2152GTF-33-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2152GTF-33-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 MP2152GTF-33-Z reliable?
The price and inventory of MP2152GTF-33-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2152GTF-33-Z is usually 5 days.
3.What payment methods are accepted for MP2152GTF-33-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2152GTF-33-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2152GTF-33-Z?
MP2152GTF-33-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2152GTF-33-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 MP2152GTF-33-Z?
For technical support, including MP2152GTF-33-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2152GTF-33-Z requirements.
6.How does Aetrix verify that MP2152GTF-33-Z is sourced from the original manufacturer or authorized distributors?
All MP2152GTF-33-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 MP2152GTF-33-Z meets industry standards.
7.What is the process for return or replacement of MP2152GTF-33-Z?
All MP2152GTF-33-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2152GTF-33-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 MP2152GTF-33-Z part is unused and in its original packaging.
Return procedure for MP2152GTF-33-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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