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Microchip Technology MIC2296BML-TR
- Part No.:
- MIC2296BML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-VFDFN Exposed Pad, 8-MLF®
- Datasheet:
-
MIC2296BML-TR.pdf
- Description:
- IC REG BOOST ADJ 1.2A 8MLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,403
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Product details
Overview
MIC2296BML-TR from Micrel is a 600kHz PWM current-mode boost regulator with internal 34V/1.2A bipolar switch, adjustable output up to 34V, and integrated output over-voltage protection (OVP). It operates from 2.5V–10V input and delivers stable high-efficiency conversion in space-constrained applications such as TFT-LCD bias supplies and organic EL power sources.
For engineers reviewing the MIC2296BML-TR datasheet, MIC2296BML-TR pinout, MIC2296BML-TR application, or MIC2296BML-TR equivalent, key selection criteria include OVP functionality, 2mm×2mm MLF-8L package compatibility, 1.24V feedback reference accuracy, and thermal shutdown behavior across –40°C to +125°C junction range.
Technical Context
The MIC2296BML-TR implements constant-frequency 600kHz current-mode PWM control using an internal oscillator, slope-compensated current amplifier, and gm error amplifier. Its architecture enables fast transient response and stable regulation without external compensation components.
It integrates a 1.2A bipolar transistor switch with 250mV saturation voltage at 0.5A, supports ceramic output capacitors down to 2.2µF for ≤34V outputs, and features dedicated OVP pin logic that clamps VOUT to ≤34V during feedback fault conditions-exclusive to the MLF-8L variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Current Limit | 1.2A typical - supports ≥100mA output at 24V from 3.6V input with margin for peak inductor current |
| Oscillator Frequency | 600kHz ±12.5% - enables use of compact 4.7–10µH inductors and low-profile ceramic capacitors |
| Feedback Voltage | 1.24V ±1% - sets output via R1/R2 divider; enables precise 5V, 9V, 12V, 24V, or 34V configurations |
| Output Over-Voltage Threshold | 32V typical (30–34V range) - hardware-clamped protection triggered when FB pin is shorted or open |
| Shutdown Current | <1µA - ensures battery-powered systems retain >1-year shelf life in standby mode |
| Input Voltage Range | 2.5V to 10V - compatible with single-cell Li-ion (3.0–4.2V), 5V rails, and 9V industrial inputs |
| Junction Temperature Range | –40°C to +125°C - validated for automotive cabin, industrial control, and display backlight environments |
Pinout & Package
Package: 2mm × 2mm, 8-pin leadless MLF® (MicroLeadFrame) with exposed thermal pad (EP). RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OVP | Over-voltage protection enable | Connect to VOUT for 34V clamping; tie to GND to disable OVP - required for fault-safe operation in open-feedback scenarios |
| VIN | Power input | 2.5–10V supply rail; must be decoupled with ≥2.2µF ceramic capacitor placed adjacent to pin |
| EN | Enable control | Logic-high (>1.5V) enables regulation; logic-low (<0.4V) disables switch and reduces quiescent current to <1µA |
| AGND | Analog ground reference | Separate from PGND to minimize noise coupling into feedback loop; connects to system analog ground plane |
| NC | No connect | Internally unconnected - must remain floating; no PCB trace or solder mask opening required |
| FB | Feedback sense | 1.24V reference node; output voltage set by R1/R2 divider; max input current ±450nA minimizes divider error |
| SW | Switch node | Internal bipolar collector output; connects to inductor and Schottky diode anode; rated for 34V max reverse voltage |
| PGND | Power ground return | High-current return path for switch and inductor; must be tied to EP and routed separately from AGND |
Key Features
| Feature | Design Value |
|---|---|
| Integrated OVP circuitry | Dedicated OVP pin provides hardware-level 34V output clamping - eliminates need for external crowbar or supervisor IC in TFT-LCD and OLED bias designs |
| Internal current-mode compensation | Zero external compensation components required - simplifies layout and improves production yield vs. voltage-mode boost controllers |
| Low-quiescent-current shutdown | <1µA shutdown current enables multi-year battery life in portable medical sensors and handheld displays powered by Li-ion cells |
| Stable with ceramic output caps | Supports X5R/X7R ceramics as low as 2.2µF for 34V outputs - avoids bulkier, higher-ESR tantalum or electrolytic capacitors |
| Thermal shutdown with hysteresis | 150°C trip point with 10°C hysteresis prevents thermal cycling in enclosed enclosures - verified over full –40°C to +125°C junction range |
Applications
| TFT-LCD Bias Supply | Organic EL Display Power |
|---|---|
|
Use Scenario: Generating +12V and –10V rails from a 3.6V Li-ion battery for active-matrix LCD column drivers and gate line bias. IC Role / Device Role / Timing Role: Primary positive boost converter; regulates high-impedance bias voltages with tight load regulation (<0.5%) across 5–100mA loads. Use Value: OVP prevents catastrophic failure if feedback resistors detach during vibration or thermal cycling - critical for automotive infotainment displays. |
Use Scenario: Driving red/green/blue OLED subpixels requiring 24V at 80mA from a 3.3V system rail in smartwatch backlights. IC Role / Device Role / Timing Role: High-efficiency step-up stage enabling >85% conversion efficiency at light loads due to 600kHz switching and low ISD. Use Value: 2mm×2mm MLF package fits within 3mm board edge clearance constraints - essential for ultra-thin wearable form factors. |
| DSL Line Card 12V Supply | Multi-Output DC/DC Converter |
|
Use Scenario: Providing isolated 12V auxiliary power from a 5V telecom bus for DSL transceiver PHYs and line drivers. IC Role / Device Role / Timing Role: Standalone boost regulator feeding downstream LDOs; maintains regulation under 100ms input brownout per GR-909. Use Value: UVLO threshold of 2.1V nominal prevents erratic startup during hot-swap insertion - ensures clean power sequencing in carrier-grade modules. |
Use Scenario: Serving as primary boost stage in a triple-output (5V/12V/–5V) power tree for industrial PLC I/O modules. IC Role / Device Role / Timing Role: First-stage regulator feeding SEPIC and inverting buck-boost secondaries; synchronized via fixed 600kHz frequency. Use Value: Constant-frequency operation minimizes EMI coupling between output rails - meets CISPR-22 Class B conducted emissions limits without shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61088RHLR | 5.5V max input, 1.5A switch, 2.5MHz switching, no OVP pin | Lacks hardware OVP; requires external circuitry for fault-safe 34V clamping | Select when higher switching frequency and smaller magnetics outweigh OVP requirement |
| MAX17062ETA+ | 28V max output, 1.2A switch, 1.2MHz, integrated Schottky | No OVP; integrated diode limits max output current to 800mA continuous | Prefer for cost-sensitive consumer displays where 34V OVP is not mandated by safety standards |
Compared with TPS61088RHLR and MAX17062ETA+, the MIC2296BML-TR uniquely delivers factory-trimmed 34V OVP in a 2mm×2mm footprint - eliminating design-in risk for applications where open-feedback faults could damage downstream OLED panels or TFT gate drivers.
Availability
MIC2296BML-TR is available at Aetrix Electronics and suitable for TFT-LCD bias supplies, organic EL display power, and DSL line card 12V conversion requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC2296BML-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
Micrel Inc., acquired by Microchip Technology in 2015, specialized in high-performance analog, power management, and timing solutions for industrial, communications, and display markets.
The MIC2296 product line was designed specifically for compact, high-reliability DC/DC boost conversion in display bias and portable power applications - emphasizing OVP robustness, ceramic-capacitor compatibility, and wide temperature operation.
FAQ
What is the function of the OVP pin on the MIC2296BML-TR?
The OVP pin on the MIC2296BML-TR enables hardware-level output over-voltage protection by monitoring VOUT and disabling the internal switch if voltage exceeds 34V. When connected to VOUT, it clamps output during feedback resistor disconnection or short-to-ground faults - a feature exclusive to the MLF-8L package and confirmed in the January 2010 datasheet Figure 1 and Application Information section. This protects downstream OLED panels and TFT driver ICs from destructive over-voltage events. The MIC2296BML-TR must have OVP tied to VOUT for full fault coverage.
Does the MIC2296BML-TR require external compensation components?
No, the MIC2296BML-TR uses internal compensation optimized for ceramic output capacitors and standard 4.7–10µH inductors. Its current-mode architecture with built-in slope compensation eliminates the need for external RC networks or Type II/III compensators - verified across –40°C to +125°C in the Functional Description and Typical Characteristics sections. This reduces BOM count and layout complexity versus voltage-mode boost regulators. The MIC2296BML-TR achieves stable regulation with only R1/R2 feedback resistors and minimal passive filtering.
What is the maximum output voltage achievable with the MIC2296BML-TR?
The MIC2296BML-TR supports adjustable output voltages up to 34V, limited by its internal 34V-rated switch and OVP threshold. The datasheet specifies VOVP = 30–34V (typical 32V), and absolute maximum switch voltage is 34V. Output voltage is set via the FB pin using VOUT = 1.24V × (1 + R1/R2); example circuits show 5V, 9V, 12V, 24V, and 34V configurations. Exceeding 34V risks permanent damage to the MIC2296BML-TR's bipolar switch and violates Absolute Maximum Ratings. The MIC2296BML-TR is not rated for >34V operation under any condition.
Can the MIC2296BML-TR operate from a single-cell Li-ion battery?
Yes, the MIC2296BML-TR operates from 2.5V to 10V input, fully covering the 3.0V–4.2V discharge curve of a single-cell Li-ion battery. Its 2.1V typical UVLO ensures reliable startup above 3.0V and graceful shutdown before deep discharge. Application examples on page 9 confirm 3V–4.2V input operation delivering 5V/400mA, 9V/180mA, and 24V/80mA - all validated with 4.7µH–15µH inductors and ceramic capacitors. The MIC2296BML-TR maintains regulation across the full battery range without external supervision.
What package type does the MIC2296BML-TR use, and is it RoHS-compliant?
The MIC2296BML-TR uses the 2mm × 2mm, 8-pin MLF® (MicroLeadFrame) leadless package with exposed thermal pad (EP), as specified in the Ordering Information table and Package Information section. It is RoHS-compliant and rated Moisture Sensitivity Level 3 (MSL-3), requiring bake prior to reflow if exposed to ambient >30°C/60% RH for >168 hours. The "BML" suffix explicitly denotes this MLF-8L variant - distinct from the SOT-23-5 "BD5" version. All MIC2296BML-TR units shipped by Aetrix meet JEDEC J-STD-020D and RoHS Directive 2011/65/EU requirements.
MIC2296BML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad, 8-MLF®
- 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:
- 600kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MLF® (2x2)
MIC2296BML-TR FAQ
1.How can I place an order for MIC2296BML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2296BML-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 MIC2296BML-TR reliable?
The price and inventory of MIC2296BML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2296BML-TR is usually 5 days.
3.What payment methods are accepted for MIC2296BML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2296BML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2296BML-TR?
MIC2296BML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2296BML-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 MIC2296BML-TR?
For technical support, including MIC2296BML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2296BML-TR requirements.
6.How does Aetrix verify that MIC2296BML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2296BML-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 MIC2296BML-TR meets industry standards.
7.What is the process for return or replacement of MIC2296BML-TR?
All MIC2296BML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2296BML-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 MIC2296BML-TR part is unused and in its original packaging.
Return procedure for MIC2296BML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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