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Microchip Technology MIC2288YML-TR
- Part No.:
- MIC2288YML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-VFDFN Exposed Pad, 8-MLF®
- Datasheet:
-
MIC2288YML-TR.pdf
- Description:
- IC REG BOOST ADJ 1.2A 8MLF
- Quantity:
- Payment:
- Shipping:
Inventory:21,976
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Product details
Overview
MIC2288YML-TR from Microchip Technology is a 1.2 MHz PWM boost switching regulator with integrated 34 V / 1 A bipolar switch, adjustable output up to 34 V, <1% line/load regulation, and output overvoltage protection (OVP). It operates from 2.5 V to 10 V input and delivers stable bias power for TFT-LCD and OLED displays.
For engineers reviewing the MIC2288YML-TR datasheet, MIC2288YML-TR pinout, MIC2288YML-TR application, or MIC2288YML-TR equivalent, this device supports high-density DC/DC conversion in space-constrained industrial and display systems requiring precise voltage regulation, low ripple, and thermal robustness across –40°C to +125°C.
Technical Context
The MIC2288YML-TR implements constant-frequency current-mode PWM control with internal slope compensation and a gm error amplifier referenced to 1.24 V. Its 1.2 MHz oscillator enables compact external components and reduces EMI through predictable switching noise.
It integrates a bipolar output transistor capable of 1.2 A typical switch current and 34 V breakdown, with dedicated OVP functionality tied to the OVP pin - active only in the 8-lead DFN package variant. Thermal shutdown triggers at 150°C with 10°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +2.5 V to +10 V - supports single-cell Li-ion (3.0–4.2 V) and 5 V rail inputs without pre-regulation. |
| Output Voltage Range | Adjustable up to +34 V - set via external resistor divider; enables high-voltage bias for display panels and sensors. |
| Switch Current Limit | 1.2 A typical - sustains >100 mA output at 24 V with margin for transient loads in boost topology. |
| Oscillator Frequency | 1.2 MHz ±12.5% - allows use of small 10 µH inductors and ceramic capacitors under 1206 footprint. |
| Feedback Reference | 1.24 V ±1% - enables accurate output setting with standard 1% resistors; ±2% over full temperature range. |
| OVP Threshold | 32 V typical (30–34 V) - clamps output during feedback fault, protecting downstream 33 V-rated components. |
| Shutdown Current | 0.1 µA typical - ensures ultra-low leakage in battery-powered standby modes. |
| Junction Temp Range | –40°C to +125°C - qualified for automotive infotainment and industrial display environments. |
Pinout & Package
Package: 8-lead 2 mm × 2 mm thin DFN (TDFN-EP), RoHS-compliant, with exposed thermal pad (EP) connected to PGND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OVP (Pin 1) | Overvoltage Protection Input | Connect to VOUT to enable 32 V clamp; tie to GND to disable OVP function - unique to DFN variant. |
| VIN (Pin 2) | Main Power Input | Accepts 2.5–10 V supply; requires local 2.2 µF ceramic decoupling placed near pin. |
| EN (Pin 3) | Enable Control Input | Logic-high (>1.5 V) enables regulation; logic-low (<0.4 V) disables with <1 µA quiescent draw. |
| AGND (Pin 4) | Analog Ground Reference | Reference for FB and OVP pins; must be routed separately from PGND to minimize noise coupling. |
| NC (Pin 5) | No Connect | Internally unconnected - leave floating or ground per layout best practice; no electrical function. |
| FB (Pin 6) | Feedback Sense Input | Monitors divided output voltage; 1.24 V reference sets regulation point; input bias <450 nA. |
| PGND (Pin 8) | Power Ground Return | Return path for switch current and inductor; connect EP pad directly to this node for thermal performance. |
| SW (Pin 7) | Switch Node Output | Drives external Schottky diode and inductor; rated for –0.3 V to +34 V; peak current up to 1.2 A. |
Key Features
| Feature | Design Value |
|---|---|
| Stable with ceramic capacitors | Eliminates need for electrolytic or tantalum output caps - reduces board area, improves reliability, and avoids aging effects. |
| Output overvoltage protection (OVP) | Hardware-level 32 V clamp activated by OVP pin connection - prevents catastrophic failure during feedback open-circuit faults. |
| 1.2 MHz fixed-frequency PWM | Enables use of 10 µH inductors and 1206-size X5R ceramics - cuts solution size by >40% vs. 500 kHz alternatives. |
| <1% line and load regulation | Maintains tight output accuracy across input variation (3–5 V) and load steps (5–40 mA), critical for display bias stability. |
| Thermal shutdown with hysteresis | Shuts down at 150°C junction temp and restarts at 140°C - prevents thermal runaway while allowing safe recovery in intermittent overload. |
| Ultra-low shutdown current | 0.1 µA typical draw in disable mode - extends battery life in portable display modules with periodic wake-up cycles. |
Applications
| Organic EL Power Supply | TFT-LCD Bias Supply |
|---|---|
|
Use Scenario: Driving OLED pixel arrays requiring 12–24 V anode bias from a 3.6 V Li-ion source in portable medical monitors. IC Role / Device Role / Timing Role: Primary boost regulator generating stable high-voltage rail with minimal ripple to prevent image flicker and grayscale distortion. Use Value: 1.2 MHz operation suppresses switching noise in sensitive analog video paths; <1% regulation maintains consistent luminance across battery discharge. |
Use Scenario: Providing VCOM and gate-on voltages (+15 V / –10 V) for automotive-grade TFT-LCD clusters operating at –40°C to +105°C ambient. IC Role / Device Role / Timing Role: High-efficiency positive boost stage feeding inverting charge pump; OVP protects gate drivers from overvoltage during cold cranking transients. Use Value: –40°C to +125°C qualification ensures startup at extreme temperatures; 34 V OVP headroom accommodates 15 V output with margin. |
| DSL Line Card Power | Multi-Output DC/DC Converter |
|
Use Scenario: Generating isolated 12 V bias for DSL PHY ICs in telecom access equipment with strict EMI limits. IC Role / Device Role / Timing Role: Non-isolated boost stage preceding transformer-based isolation; fixed 1.2 MHz frequency simplifies EMI filter design. Use Value: Low output ripple (<10 mVpp) avoids interference with ADSL2+ signal integrity; ceramic-capable design meets Telcordia GR-1089 immunity requirements. |
Use Scenario: Serving as main boost controller in dual-output power tree delivering +12 V and –5 V for industrial PLC I/O modules. IC Role / Device Role / Timing Role: Primary regulated rail generator feeding secondary inverting buck-boost stage; EN pin enables synchronized power sequencing. Use Value: Enable threshold (1.5 V) interfaces directly with FPGA I/O banks; <1 µA shutdown current minimizes standby loss in always-on control units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61088RHLR | CMOS-based 2.5–12 V input, 1.2 A switch, no integrated OVP, 2.5 mm × 2.5 mm QFN | Lacks hardware OVP; requires external circuitry for fault protection in safety-critical display rails | Prefer when cost sensitivity outweighs OVP requirement and layout allows larger QFN footprint. |
| LT3467EDD#TRPBF | Bipolar-based 2.7–16 V input, 1.3 A switch, 1.3 MHz, no OVP, 3 mm × 3 mm DFN | Higher max input voltage but no OVP; wider VIN range trades off against missing fault protection | Select when input exceeds 10 V or when thermal performance at >125°C is not required. |
Compared with TPS61088RHLR and LT3467EDD#TRPBF, MIC2288YML-TR uniquely integrates OVP in its DFN package, delivers tighter regulation (<1%), and maintains full specification over –40°C to +125°C - making it optimal for display bias where fault tolerance and temperature stability are non-negotiable.
Availability
MIC2288YML-TR is available at Aetrix Electronics and suitable for TFT-LCD bias supplies, organic EL power systems, and DSL line card designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC2288YML-TR 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
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power management ICs, with global manufacturing and quality certifications including ISO 9001 and AEC-Q200.
The MIC2288 product line delivers high-frequency, high-voltage boost regulators optimized for space-constrained display and telecom applications where reliability, thermal resilience, and integrated protection are essential.
FAQ
What is the maximum output voltage supported by the MIC2288YML-TR?
The MIC2288YML-TR supports adjustable output voltage up to 34 V, set by an external resistor divider on the FB pin. Its internal switch is rated for 34 V, and the OVP feature (enabled via the OVP pin) clamps output at 32 V typical to protect downstream circuitry - a key differentiator for display bias applications where overvoltage can damage OLED or LCD driver ICs. This capability is confirmed in the Electrical Characteristics table on page 4 of DS20006034C.
Does the MIC2288YML-TR require an external diode, and what type is recommended?
Yes, the MIC2288YML-TR requires an external Schottky diode connected between the SW pin and output capacitor. A 1 A, 40 V Schottky diode such as MBRM140T3 is recommended - as specified in Figures 6-1 through 6-8 - due to its low forward voltage and fast reverse recovery, which maximize efficiency and minimize switching losses. The diode must withstand peak inductor current and output voltage, and its placement must minimize loop area for EMI control.
How does the OVP function work on the MIC2288YML-TR, and is it enabled by default?
The OVP function on the MIC2288YML-TR is enabled only when the OVP pin (Pin 1) is connected to the output voltage node; it is disabled when tied to ground. It is not active by default. When enabled, it monitors output voltage and shuts off the internal switch if VOUT exceeds 32 V (30–34 V range), preventing damage during feedback resistor disconnection or short-to-ground faults - a hardware-level safeguard absent in most competing boost ICs. This behavior is documented in Section 5.3 and Table 3-1 of DS20006034C.
What is the thermal performance difference between the MIC2288YML-TR and the SOT23 variant MIC2288YD5-TR?
The MIC2288YML-TR in 2 mm × 2 mm DFN has θJA = 93°C/W, while the 5-lead Thin SOT23 (MIC2288YD5-TR) has θJA = 256°C/W - a 2.7× improvement in thermal resistance. This allows the MIC2288YML-TR to sustain higher continuous output power (e.g., 12 V @ 100 mA) without derating at +85°C ambient, making it preferred for thermally dense display modules. The DFN's exposed pad (EP) must be soldered to a thermal plane for optimal performance, per Package Outline on page 17.
Can the MIC2288YML-TR operate with input voltage below 2.5 V, such as from a partially discharged Li-ion cell?
No - the MIC2288YML-TR has a guaranteed operating input range of +2.5 V to +10 V, with undervoltage lockout (UVLO) releasing at 2.1 V typical. Below 2.5 V, regulation is not assured, and output may drop out or become unstable. For applications with deep-discharge cells, a pre-regulator or alternative IC with lower VIN min (e.g., 0.9 V) is required. This limit is explicitly defined in the Absolute Maximum and Operating Ratings tables on page 3 of DS20006034C.
MIC2288YML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad, 8-MLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 10V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- 34V (Switch)
- Current - Output:
- 1.2A (Switch)
- Frequency - Switching:
- 1.2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MLF™ (2x2)
MIC2288YML-TR FAQ
1.How can I place an order for MIC2288YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2288YML-TR 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 MIC2288YML-TR reliable?
The price and inventory of MIC2288YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2288YML-TR is usually 5 days.
3.What payment methods are accepted for MIC2288YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2288YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2288YML-TR?
MIC2288YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2288YML-TR 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 MIC2288YML-TR?
For technical support, including MIC2288YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2288YML-TR requirements.
6.How does Aetrix verify that MIC2288YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2288YML-TR 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 MIC2288YML-TR meets industry standards.
7.What is the process for return or replacement of MIC2288YML-TR?
All MIC2288YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2288YML-TR, 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 MIC2288YML-TR part is unused and in its original packaging.
Return procedure for MIC2288YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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