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Monolithic Power Systems Inc. MP2153GTF-12-P
- Part No.:
- MP2153GTF-12-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-563, SOT-666
- Datasheet:
-
MP2153GTF-12-P.pdf
- Description:
- IC REG BUCK 1.2V 3A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:4,441
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Product details
Overview
MP2153GTF-12-P from Monolithic Power Systems is a fixed-output 1.2V, 3A synchronous step-down DC/DC converter in SOT563 package, featuring 25μA quiescent current, 1.1MHz switching frequency, and integrated 65mΩ/35mΩ MOSFETs. It delivers stable power to low-voltage logic rails in SSDs and portable instrumentation under 2.5–5.5V input.
For engineers reviewing the MP2153GTF-12-P datasheet, MP2153GTF-12-P pinout, MP2153GTF-12-P application, or MP2153GTF-12-P equivalent, key selection criteria include fixed 1.2V output accuracy (±1%), output discharge capability, EN-controlled sequencing, thermal shutdown at 160°C, and compatibility with 1μH inductors and 22μF ceramic output capacitors.
Technical Context
The MP2153GTF-12-P uses constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across its 2.5–5.5V input range. Its internal high-side P-channel and low-side N-channel MOSFETs (65mΩ/35mΩ) enable up to 3A continuous output at 1.2V with minimal external components.
It integrates cycle-by-cycle current limiting (4A peak), hiccup-mode short-circuit protection, VOUT over-voltage protection (115% of 1.2V), and automatic output discharge during disable. The fixed 1.2V version replaces FB with PG - an open-drain power-good indicator with 150μs delay and ±5% window tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±1% (1188–1212mV at 25°C); enables direct powering of 1.2V core logic without feedback resistors. |
| Max Output Current | 3A continuous; supports high-current SoC cores and FPGA I/O banks in space-constrained designs. |
| Quiescent Current | 30–35μA (typical); sustains ultra-low standby power in battery-backed systems and always-on sensors. |
| Switching Frequency | 1.1MHz nominal; allows use of compact 1μH inductors and reduces EMI filtering burden. |
| Input Voltage Range | 2.5V to 5.5V; compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and 3.3V rail inputs. |
| Internal MOSFET RDS(on) | 65mΩ (HS) / 35mΩ (LS); minimizes conduction loss and thermal rise at full load in SOT563 package. |
| Thermal Shutdown | 160°C with 30°C hysteresis; prevents permanent damage during sustained overload or poor PCB layout. |
| Power Good (PG) | Open-drain output with 150μs delay; asserts when VOUT is within ±5% of 1.2V, enabling safe system power sequencing. |
Pinout & Package
SOT563 (1.6mm × 1.6mm) package with wettable flanks for automated optical inspection. Thermal resistance θJA = 80°C/W (2-layer PCB), supporting up to ~1.5W dissipation at +25°C ambient.
| 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. |
| 2 SW | Switching node | Drain of internal high-side P-MOSFET; connects directly to inductor; carries high di/dt square wave (0–5.5V). |
| 3 VIN | Input supply | Accepts 2.5–5.5V unregulated input; requires local 10μF ceramic decoupling placed <2mm from pin. |
| 4 EN | Enable control | Active-high logic input (1.2V threshold); floating or grounded disables device and activates output discharge. |
| 5 PG | Power good indicator | Open-drain output; pulled low if VOUT deviates >±5% from 1.2V; requires external 100–500kΩ pull-up to VIN. |
| 6 OUT | Output sense & power rail | Direct connection to output capacitor; senses VOUT for regulation and OVP; also serves as power delivery path. |
Key Features
| Feature | Design Value |
|---|---|
| Output discharge on disable | Integrated 200Ω discharge FET actively bleeds output capacitor to prevent residual voltage hold-up during power-down. |
| Constant-on-time (COT) control | Delivers <10μs load transient response (0→1.5A) without external compensation; simplifies design for fast-digital loads. |
| VOUT over-voltage protection | Dynamically clamps output by forcing low-side FET on when FB exceeds 115% of 600mV; recovers automatically when error <105%. |
| Hiccup-mode short-circuit protection | Enters 100ms off-cycle after current limit trip; limits average power dissipation and prevents thermal runaway during fault. |
| 100% duty-cycle operation | Supports dropout operation down to VOUT = VIN − 0.1V; maintains regulation even at near-unity conversion ratios. |
| Ultra-low IQ sleep mode | Reduces operating current to 25–35μA at light load; extends battery life in IoT endpoints and wearable sensors. |
Applications
| Solid-State Drives (SSD) | Portable Instrumentation |
|---|---|
|
Use Scenario: Powering 1.2V NAND flash controller and DRAM cache in M.2 SATA/NVMe SSD modules. IC Role / Device Role / Timing Role: Primary 1.2V core regulator delivering up to 3A with tight transient response to handle burst write/read cycles. Use Value: Eliminates need for external feedback network and reduces BOM count by integrating both power switches and PG monitoring. |
Use Scenario: Supplying 1.2V analog front-end (AFE) and microcontroller core in handheld multimeters and data loggers. IC Role / Device Role / Timing Role: Main step-down regulator enabling battery-powered operation with <35μA quiescent draw during sleep mode. Use Value: Output discharge ensures rapid power-down reset between measurements, preventing latch-up in precision ADC references. |
| Battery-Powered Sensors | Multi-Function Printers (MFP) |
|
Use Scenario: Generating stable 1.2V rail for BLE SoCs and MEMS accelerometers in wireless sensor nodes. IC Role / Device Role / Timing Role: Always-on power stage supporting deep-sleep wake-up events with sub-100μA system standby current. Use Value: COT architecture maintains regulation stability across wide input voltage swing (3.0–4.2V Li-ion), avoiding brownouts. |
Use Scenario: Providing 1.2V logic supply to print engine controllers and image processing ASICs during active printing. IC Role / Device Role / Timing Role: High-current point-of-load regulator handling pulsed 2A loads from motor drivers and laser diode arrays. Use Value: Integrated 65mΩ/35mΩ MOSFETs and 1.1MHz switching minimize solution size while meeting thermal limits in enclosed chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output 1.2V buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6286412RQYR | 1.8V minimum input; 2.5A max output; 17μA IQ; no output discharge; WSON-6 (2.0×2.0mm) | Lacks output discharge and 3A capability; better suited for higher-VIN, lower-IOUT applications. | Select only if input ≥3.0V and peak load ≤2.5A; verify thermal margin in same PCB area. |
| RT7295BGJ6F | Adjustable output only; requires external FB resistors; 3.5A rating; 28μA IQ; TSOT23-6 | Not pin-compatible; adds two resistors and lacks PG signal; requires redesign of feedback network. | Choose only if adjustable VOUT is needed; not a drop-in replacement for MP2153GTF-12-P's fixed 1.2V + PG function. |
Compared with TPS6286412RQYR and RT7295BGJ6F, MP2153GTF-12-P uniquely combines fixed 1.2V output, integrated PG, output discharge, and 3A capability in a 1.6mm×1.6mm footprint - making it optimal for space- and feature-constrained 1.2V core supplies.
Availability
MP2153GTF-12-P is available at Aetrix Electronics and suitable for solid-state drives, portable instrumentation, battery-powered sensors, and multi-function printers requiring stable component supply with guaranteed long-term availability.
Supply support for MP2153GTF-12-P 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, founded in 1997 and headquartered in Kirkland, Washington.
The MP2153 belongs to MPS's ultra-small-footprint, low-IQ buck converter product line, designed specifically for power-constrained portable and storage applications where board space and standby power are critical.
FAQ
What is the purpose of the PG pin on MP2153GTF-12-P?
The PG (Power Good) pin is an open-drain output that signals when the 1.2V output is within ±5% regulation window. It requires an external pull-up resistor (100–500kΩ to VIN) and asserts high after a 150μs delay once VOUT stabilizes. This enables safe sequencing of downstream logic and resets.
Does MP2153GTF-12-P support output discharge, and how does it work?
Yes - when EN is pulled low or left floating, the device activates an internal 200Ω discharge FET between OUT and GND. This rapidly discharges the output capacitor to <100mV within milliseconds, preventing unintended wake-up or latch-up in battery-powered systems.
Can MP2153GTF-12-P operate with input voltages below 2.5V?
No - the absolute minimum input voltage is 2.5V per datasheet specifications. Under-voltage lockout (UVLO) disables operation below 2.3V (rising threshold), and sustained operation below 2.5V is not characterized or guaranteed. Use only within 2.5–5.5V range.
What inductor value is recommended for MP2153GTF-12-P at 3A load?
A 1.0μH shielded power inductor with DCR ≤27mΩ and saturation current ≥4.5A is recommended. Typical values used in evaluation boards (e.g., EV2153-TF-00A) achieve >90% efficiency at 3A with 5V input and 1.2V output.
Is thermal derating required for MP2153GTF-12-P in SOT563 package?
Yes - at ambient temperatures above +60°C or with limited copper area, output current must be reduced. At +85°C ambient, maximum continuous output drops to ~2.2A (per Figure 9, "Output Current Derating vs. Ambient Temperature"), due to θJA = 80°C/W and 160°C junction limit.
How does the MP2153GTF-12-P respond to a short-circuit event?
Upon detecting overcurrent, it enters hiccup mode: disabling switching, discharging soft-start capacitor, waiting ~100ms, then attempting auto-recovery. This limits average power dissipation and prevents thermal damage while maintaining fault visibility via PG deassertion.
Does MP2153GTF-12-P require an external bootstrap capacitor?
No - the MP2153GTF-12-P uses a P-channel high-side MOSFET, eliminating the need for a bootstrap circuit or external capacitor. This simplifies layout and reduces component count compared to N-channel high-side buck controllers.
MP2153GTF-12-P 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):
- 1.2V
- 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-12-P FAQ
1.How can I place an order for MP2153GTF-12-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2153GTF-12-P 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-12-P reliable?
The price and inventory of MP2153GTF-12-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2153GTF-12-P is usually 5 days.
3.What payment methods are accepted for MP2153GTF-12-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2153GTF-12-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2153GTF-12-P?
MP2153GTF-12-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2153GTF-12-P 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-12-P?
For technical support, including MP2153GTF-12-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2153GTF-12-P requirements.
6.How does Aetrix verify that MP2153GTF-12-P is sourced from the original manufacturer or authorized distributors?
All MP2153GTF-12-P 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-12-P meets industry standards.
7.What is the process for return or replacement of MP2153GTF-12-P?
All MP2153GTF-12-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2153GTF-12-P, 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-12-P part is unused and in its original packaging.
Return procedure for MP2153GTF-12-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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