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Monolithic Power Systems Inc. MP2153GTF-18-Z
- Part No.:
- MP2153GTF-18-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-563, SOT-666
- Datasheet:
-
MP2153GTF-18-Z.pdf
- Description:
- IC REG BUCK 1.8V 3A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:4,018
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Product details
Overview
MP2153GTF-18-Z from Monolithic Power Systems is a fixed-output 1.8V, 3A synchronous step-down DC/DC converter in SOT563 package, featuring 25μA quiescent current, 1.1MHz switching frequency, and integrated 65mΩ/35mΩ MOSFETs. It operates from 2.5V–5.5V input, delivers ±1% output accuracy over temperature, and includes output discharge, OVP, and hiccup-mode short-circuit protection - deployed in SSD power rails and portable instrument core supplies.
For engineers reviewing the MP2153GTF-18-Z datasheet, MP2153GTF-18-Z pinout, MP2153GTF-18-Z application, or MP2153GTF-18-Z equivalent, key selection criteria include fixed 1.8V output with 1.773V–1.827V tolerance across –40°C to +125°C, EN-controlled sequencing, thermal shutdown at 160°C, and compatibility with 1μH inductors and 22μF ceramic output capacitors.
Technical Context
The MP2153GTF-18-Z uses constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across its 2.5V–5.5V input range and 1.8V output. Its internal high-side P-channel (65mΩ) and low-side N-channel (35mΩ) MOSFETs enable up to 3A continuous output without external switches.
Fault management includes cycle-by-cycle current limiting (4A peak), VOUT over-voltage protection triggered at 115% of 1.8V (2.07V), and automatic output discharge during disable via internal 200Ω resistor. The device enters sleep mode below light load thresholds to sustain 25μA IQ while maintaining regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±1.5% (1.773V–1.827V) over –40°C to +125°C - ensures stable core supply for 1.8V I/O domains. |
| Max Output Current | 3A continuous - supports high-current FPGA I/O banks or SSD controller logic rails. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB 5V, or regulated 3.3V/5V system rails. |
| Quiescent Current | 25μA typical at 5V input - enables >1-year battery life in always-on portable instrumentation. |
| Switching Frequency | 1.1MHz nominal - allows use of compact 1μH inductors and reduces EMI filtering burden. |
| Internal MOSFET RDS(on) | 65mΩ (HS) / 35mΩ (LS) - minimizes conduction loss; enables >90% efficiency at 1.8V/2A with 5V input. |
| Thermal Shutdown | 160°C with 30°C hysteresis - protects against sustained overload in sealed enclosures. |
| Output Discharge | 200Ω internal path - discharges VOUT to <100mV within 1ms after EN deassertion, meeting safety reset requirements. |
Pinout & Package
SOT563 (1.6mm × 1.6mm, 0.5mm pitch) thermally enhanced package with exposed pad; 6-pin layout optimized for minimal PCB area and 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 connect directly to thermal pad and low-impedance ground plane. |
| 2 SW | Switching node | Drain of internal high-side P-MOSFET; connects to inductor; requires tight loop with VIN and GND to minimize EMI. |
| 3 VIN | Input supply | 2.5V–5.5V unregulated input; requires ≥10μF X5R/X7R ceramic decoupling placed ≤2mm from pin. |
| 4 EN | Enable control | Active-high logic input (1.2V threshold); internal 1MΩ pulldown; controls power sequencing and output discharge activation. |
| 5 FB | Feedback (not used) | NC on fixed-output variants; internally tied to 1.8V reference; no external resistor divider required. |
| 6 OUT | Output sense & power rail | Monitors regulated 1.8V output; connects to output capacitor and load; provides feedback path for regulation loop. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 25μA enables >10-year shelf life in battery-backed storage devices and sensor nodes. |
| Integrated power MOSFETs | 65mΩ HS / 35mΩ LS eliminates external FETs and gate drivers - reduces BOM count by 4 components. |
| Output discharge on disable | 200Ω internal path discharges 22μF output cap to <100mV in <1ms - satisfies IEC 62368-1 safe discharge mandates. |
| VOUT over-voltage protection | Triggers dynamic regulation at 2.07V (115% of 1.8V) and forces low-side conduction to clamp overshoot - prevents damage to 1.8V logic ICs. |
| Hiccup-mode short-circuit protection | Enters 150μs PG delay + soft-start recovery cycle upon SCP - sustains reliability during connector hot-plug faults. |
| 100% duty cycle capability | Supports dropout operation down to VIN = VOUT + 0.1V - maintains regulation during brownout conditions in portable systems. |
Applications
| SSD Core Power | Portable Instrumentation |
|---|---|
Use Scenario: Powering NAND flash interface and controller logic in M.2 SATA SSD modules. IC Role / Device Role / Timing Role: Primary 1.8V buck regulator supplying I/O and PHY circuitry with fast transient response to burst read/write loads. Use Value: 1.1MHz switching enables compact 1μH inductor placement adjacent to SSD controller; 25μA IQ extends standby time between host wake events. |
Use Scenario: Regulating 1.8V supply for precision ADC front-end and microcontroller peripherals in handheld multimeters. IC Role / Device Role / Timing Role: Low-noise, high-accuracy DC/DC stage delivering stable rail for 24-bit sigma-delta converters. Use Value: ±1% FB accuracy ensures consistent reference scaling; output discharge guarantees safe power-down before battery replacement. |
| Battery-Powered Sensors | Multi-Function Printers |
Use Scenario: Supplying 1.8V logic for BLE/Wi-Fi SoCs and environmental sensors in wireless IoT nodes. IC Role / Device Role / Timing Role: Always-on power stage enabling sub-μA sleep current while retaining fast wake-up capability. Use Value: 25μA IQ extends CR2032 battery life beyond 2 years in periodic transmission mode; SOT563 footprint fits 8mm² PCB area. |
Use Scenario: Generating 1.8V rail for image processor I/O buffers and memory interfaces in compact office printers. IC Role / Device Role / Timing Role: High-current point-of-load regulator supporting burst data transfers during scan-to-cloud operations. Use Value: 3A capability handles 2.5A peak during motor + imaging concurrent operation; thermal shutdown prevents thermal derating in enclosed chassis. |
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 |
|---|---|---|---|
| TPS6286518RQYR | 1.8V fixed, 4A, 1.8MHz, 15μA IQ, WSON-8 (2mm×2mm) | Higher current and frequency; larger package; no output discharge | Select when >3A peak load or faster transient response is required; verify thermal margin with 2-layer board. |
| RT7295BGJ6F | 1.8V fixed, 3A, 1.5MHz, 35μA IQ, SOT563-compatible | Higher IQ, no output discharge, different EN threshold (0.8V) | Prefer when cost sensitivity outweighs discharge requirement; validate EN logic compatibility with host MCU GPIO. |
Compared with TPS6286518RQYR and RT7295BGJ6F, the MP2153GTF-18-Z uniquely combines ultra-low 25μA IQ, integrated output discharge, and SOT563 footprint - making it optimal for space-constrained, battery-sensitive 1.8V applications where safe power-down and multi-year shelf life are critical.
Availability
MP2153GTF-18-Z is available at Aetrix Electronics and suitable for solid-state drives, portable instrumentation, battery-powered sensors, and multi-function printers requiring stable component supply, long-lifecycle availability, and RoHS-compliant packaging.
Supply support for MP2153GTF-18-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.
The MP2153 product line targets ultra-compact, low-IQ DC/DC conversion for portable and battery-operated systems - emphasizing minimal external components, thermal robustness, and seamless integration into space-constrained PCB layouts.
FAQ
What is the guaranteed output voltage tolerance over temperature for MP2153GTF-18-Z?
The MP2153GTF-18-Z delivers 1.8V output with ±1.5% tolerance (1.773V to 1.827V) across the full operating junction temperature range of –40°C to +125°C, as specified in the Electrical Characteristics table under "OUT voltage (MP2153XX-18)" with test conditions TJ = –40°C to +125°C.
Does MP2153GTF-18-Z require external feedback resistors?
No. The MP2153GTF-18-Z is a fixed-output variant; the FB pin is internally connected to the 1.8V reference and must be left unconnected. External resistor dividers are only required for adjustable versions (e.g., MP2153GTF).
How does the output discharge function operate during shutdown?
When EN is pulled low, the MP2153GTF-18-Z activates an internal 200Ω discharge path between OUT and GND, discharging a 22μF output capacitor from 1.8V to <100mV in under 1ms - satisfying IEC 62368-1 safe discharge timing requirements.
What is the minimum recommended input capacitance?
A minimum 10μF X5R or X7R ceramic capacitor is required at VIN, placed within 2mm of the VIN and GND pins. This value ensures stable operation under 3A load transients and suppresses high-frequency switching noise coupled from the SW node.
Can MP2153GTF-18-Z operate with a 2.5V input and 1.8V output?
Yes. The MP2153GTF-18-Z supports 100% duty cycle operation, enabling regulation even when VIN equals VOUT. At VIN = 2.5V, it maintains 1.8V output with full 3A capability and meets all electrical specifications including thermal limits on a standard 2-layer PCB.
Is there a power-good indicator on this part?
No. The PG pin is only present on fixed-output variants packaged in UTQFN-6 (e.g., MP2153GQFU-18). The SOT563-packaged MP2153GTF-18-Z omits the PG pin; FB is unused and OUT serves solely as the output power rail and sense node.
What thermal performance can be expected on a 2-layer PCB?
On a standard 2-layer 63mm×63mm PCB (EV2153-TF-00A reference board), the MP2153GTF-18-Z exhibits θJA = 80°C/W. At 3A output with 5V input, junction temperature rise is ~192°C above ambient - confirming derating is required above 1.5A unless using thermal vias or copper pours per MPS AN-107 guidelines.
MP2153GTF-18-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):
- 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 3A
- 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
MP2153GTF-18-Z FAQ
1.How can I place an order for MP2153GTF-18-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2153GTF-18-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 MP2153GTF-18-Z reliable?
The price and inventory of MP2153GTF-18-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2153GTF-18-Z is usually 5 days.
3.What payment methods are accepted for MP2153GTF-18-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2153GTF-18-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2153GTF-18-Z?
MP2153GTF-18-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2153GTF-18-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 MP2153GTF-18-Z?
For technical support, including MP2153GTF-18-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2153GTF-18-Z requirements.
6.How does Aetrix verify that MP2153GTF-18-Z is sourced from the original manufacturer or authorized distributors?
All MP2153GTF-18-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 MP2153GTF-18-Z meets industry standards.
7.What is the process for return or replacement of MP2153GTF-18-Z?
All MP2153GTF-18-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2153GTF-18-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 MP2153GTF-18-Z part is unused and in its original packaging.
Return procedure for MP2153GTF-18-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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