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Microchip Technology MIC2288BD5-TR
- Part No.:
- MIC2288BD5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MIC2288BD5-TR.pdf
- Description:
- IC REG BOOST ADJ 1.2A TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,466
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Product details
Overview
MIC2288BD5-TR from Microchip Technology is a 1.2 MHz PWM boost switching regulator with internal 34V/1A bipolar switch, adjustable output up to 34V, and stable operation with ceramic capacitors. It delivers >1A switch current, <1% line/load regulation, and operates across 2.5V–10V input in a compact 5-lead Thin SOT23 package for space-constrained DC/DC bias supplies.
For engineers reviewing the MIC2288BD5-TR datasheet, MIC2288BD5-TR pinout, MIC2288BD5-TR application, or MIC2288BD5-TR equivalent, this device serves as a high-frequency, current-mode boost controller optimized for TFT-LCD bias, organic EL power, and multi-output converter designs requiring low-profile packaging and tight regulation under variable load and input conditions.
Technical Context
The MIC2288BD5-TR implements constant-frequency, current-mode PWM control using an internal 1.2 MHz oscillator, slope-compensated ramp generator, and gm error amplifier referenced to 1.24 V. Its bipolar output switch enables robust 1A peak current handling with 550 mV saturation voltage at 1A.
It features undervoltage lockout (2.1 V typ), shutdown current <1 µA, and thermal shutdown at 150°C. Unlike the DFN variant, the D5 package omits OVP and NC pins-only SW, GND, FB, EN, and VIN are functional, with no exposed pad or analog/power ground separation.
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 external LDO pre-regulation. |
| Switch Current Limit | 1.2 A typ - enables ≥100 mA output at 15 V (e.g., 3.6 V → 15 V @ 100 mA) with margin for transient loads. |
| Oscillator Frequency | 1.2 MHz ±12.5% - allows use of small 4.7–10 µH inductors and 2.2–10 µF ceramic output capacitors to minimize board area. |
| Feedback Reference | 1.24 V ±1% - sets output voltage via resistor divider (e.g., 15 V requires R1/R2 = 11.1); tolerance directly impacts output accuracy. |
| Line & Load Regulation | <0.1% line, <0.2% load - ensures stable output across input variation (3–5 V) and load steps (5–40 mA), critical for display bias rails. |
| Junction Temperature Range | −40°C to +125°C - qualified for automotive infotainment displays and industrial HMI panels operating in uncontrolled ambient environments. |
| Shutdown Current | 0.1 µA typ - reduces system standby power in battery-powered OLED/TFT modules where long sleep duration is required. |
Pinout & Package
Package: 5-lead Thin SOT23 (TSOT-23-5), 2.9 mm × 1.6 mm × 0.9 mm profile, no exposed thermal pad. Pin 1 marked by dot; pinout matches standard TSOT-23 orientation (pin 1 top-left, pin 5 bottom-right).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SW) | Switch Node | Internal bipolar collector node - connects to inductor and Schottky diode anode; carries high di/dt switching current; requires short, low-inductance PCB trace. |
| 2 (GND) | Ground Return | Single ground reference for all internal circuitry - must be tied to low-impedance system ground plane near input/output capacitors. |
| 3 (FB) | Feedback Input | Senses output voltage via resistor divider - high-impedance node (±450 nA bias); sensitive to noise; requires local 100 pF bypass if routing near noisy traces. |
| 4 (EN) | Enable Control | Logic-level input (1.5 V threshold); pulls regulator into <1 µA shutdown when low - used for system-level power sequencing or dynamic dimming control. |
| 5 (VIN) | Power Input | 2.5–10 V supply input - must be decoupled with ≥2.2 µF X5R ceramic capacitor placed within 2 mm of pin to suppress switching noise injection. |
Key Features
| Feature | Design Value |
|---|---|
| Stable with ceramic capacitors | Eliminates need for bulk electrolytic output caps - enables ultra-thin display modules with X5R/X7R MLCCs (e.g., 10 µF, 16 V, 1206). |
| 1.2 MHz fixed-frequency PWM | Reduces EMI fundamental frequency above AM radio band and shrinks passive component footprint vs. 500 kHz alternatives. |
| <1% line and load regulation | Maintains display bias voltage stability during battery discharge (3.6 V → 3.0 V) and pixel column switching transients (±20 mA load steps). |
| Internal 34 V / 1 A switch | Supports 12–24 V outputs from 3.3/5 V rails without external MOSFET - simplifies layout and reduces BOM count in multi-rail LCD drivers. |
| −40°C to +125°C operation | Validated for extended temperature range without derating - suitable for automotive center-stack displays and outdoor kiosks. |
Applications
| Organic EL Power Supply | TFT-LCD Bias Supply |
|---|---|
|
Use Scenario: Driving OLED panel anode voltage (12–24 V) from a 3.3 V or 5 V system rail in portable medical monitors. IC Role / Device Role / Timing Role: Primary boost regulator generating stable high-voltage bias; operates in continuous conduction mode with 1.2 MHz switching. Use Value: Delivers 50–80 mA at 24 V with <0.2% load regulation, enabling uniform pixel brightness across full grayscale without visible banding. |
Use Scenario: Generating VGH (18–22 V) and VGL (−7 to −10 V) rails for active-matrix LCD gate drivers in automotive instrument clusters. IC Role / Device Role / Timing Role: Positive boost stage feeding inverting charge pump; synchronized 1.2 MHz clock minimizes beat frequencies with display scan timing. Use Value: Achieves <1% line regulation over 3.0–4.2 V battery range, preventing contrast shift during cold cranking or accessory mode. |
| 12 V Supply for DSL Applications | Positive and Negative Output Regulators |
|
Use Scenario: Providing isolated 12 V bias for DSL line driver ICs in residential gateway routers operating from 5 V USB power. IC Role / Device Role / Timing Role: Standalone boost converter with EN-controlled power-up sequencing; no external compensation required. Use Value: Enables compact 12 V/150 mA output in <100 mm² PCB area using 10 µH inductor and 10 µF ceramic cap - avoids transformer-based isolation overhead. |
Use Scenario: Dual-rail power for op-amp signal conditioning in industrial sensor interfaces requiring ±12 V from 5 V input. IC Role / Device Role / Timing Role: Positive boost stage cascaded with inverting buck-boost; fixed 1.2 MHz frequency simplifies EMI filtering design. Use Value: Supports simultaneous ±12 V @ 20 mA with <10 mV ripple per rail - meets precision ADC reference buffer requirements without additional LDO post-regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61088RHLR | CMOS synchronous boost (not bipolar); 2.7–12 V input; 1.2 MHz; 5.5 A switch; no OVP on QFN variant. | Higher efficiency (>93% at 1 A) but larger 3 mm × 3 mm QFN package; requires external compensation for wide output range. | Prefer for high-current, high-efficiency needs where board space allows larger package and layout complexity is acceptable. |
| MAX17222ATA+T | NMOS-only boost; 0.4–5.5 V input; 1.6 MHz; 0.5 A switch; integrated 1.21 V reference; no OVP or UVLO hysteresis. | Optimized for ultra-low-input (coin cell) apps; lower max output (28 V); lacks thermal shutdown and OVP protection. | Prefer for sub-100 mA, low-VIN (<3 V) portable devices where minimal quiescent current (0.5 µA) outweighs protection gaps. |
Compared with TPS61088RHLR and MAX17222ATA+T, the MIC2288BD5-TR offers superior thermal robustness (150°C shutdown), bipolar switch ruggedness for high-voltage transients, and proven stability with ceramic caps in space-constrained display bias roles - making it optimal for reliability-critical, medium-current, high-VOUT applications where DFN-level protection isn't required.
Availability
MIC2288BD5-TR is available at Aetrix Electronics and suitable for TFT-LCD bias supplies, organic EL power systems, and DSL line driver applications requiring stable component supply, consistent parametric performance, and long-term industrial lifecycle support.
Supply support for MIC2288BD5-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 a focus on embedded control and industrial reliability.
The MIC2288 product line delivers high-frequency, current-mode boost regulators for display bias and portable power applications - designed specifically to replace discrete boost solutions with integrated switches, internal compensation, and wide temperature operation.
FAQ
What is the maximum output voltage achievable with MIC2288BD5-TR?
The MIC2288BD5-TR supports adjustable output voltage up to 34 V, set by the external feedback resistor divider. Its internal 34 V rated switch and 1.24 V reference enable precise configuration (e.g., 15 V with R1 = 54.9 kΩ, R2 = 5 kΩ). Note that output overvoltage protection (OVP) is not implemented in the D5 package - only in the ML (DFN) variant.
Does MIC2288BD5-TR require external compensation components?
No, the MIC2288BD5-TR features internal compensation for its current-mode control loop. The device achieves stable operation with ceramic output capacitors (e.g., 10 µF X5R) and standard 4.7–10 µH inductors without adding external RC networks - simplifying design and reducing bill-of-materials cost.
Can MIC2288BD5-TR operate from a single-cell Li-ion battery?
Yes, MIC2288BD5-TR operates across 2.5 V to 10 V input, fully supporting single-cell Li-ion (3.0–4.2 V nominal) and Li-polymer batteries. Its 2.1 V typical undervoltage lockout prevents malfunction during deep discharge, and <1 µA shutdown current extends battery life in standby modes.
What package type does MIC2288BD5-TR use, and is thermal pad connection required?
MIC2288BD5-TR uses the 5-lead Thin SOT23 (TSOT-23-5) package, 2.9 mm × 1.6 mm × 0.9 mm, with no exposed thermal pad. Unlike the DFN variant, the D5 package relies on PCB copper pour under the body and short traces to GND for thermal dissipation - no solder paste or vias to internal layers are needed.
How does MIC2288BD5-TR handle load transients in display bias applications?
MIC2288BD5-TR delivers excellent transient response due to its current-mode architecture and 1.2 MHz switching frequency. Typical load step recovery (10 mA → 100 mA) occurs within 10 µs with <50 mV undershoot - verified in Figure 2-15 of DS20006034C - ensuring stable VGH/VGL rails during rapid LCD column addressing.
MIC2288BD5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- TSOT-23-5
MIC2288BD5-TR FAQ
1.How can I place an order for MIC2288BD5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2288BD5-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 MIC2288BD5-TR reliable?
The price and inventory of MIC2288BD5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2288BD5-TR is usually 5 days.
3.What payment methods are accepted for MIC2288BD5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2288BD5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2288BD5-TR?
MIC2288BD5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2288BD5-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 MIC2288BD5-TR?
For technical support, including MIC2288BD5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2288BD5-TR requirements.
6.How does Aetrix verify that MIC2288BD5-TR is sourced from the original manufacturer or authorized distributors?
All MIC2288BD5-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 MIC2288BD5-TR meets industry standards.
7.What is the process for return or replacement of MIC2288BD5-TR?
All MIC2288BD5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2288BD5-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 MIC2288BD5-TR part is unused and in its original packaging.
Return procedure for MIC2288BD5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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