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Microchip Technology MIC2204BML-TR
- Part No.:
- MIC2204BML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-VFDFN Exposed Pad, 10-MLF®
- Datasheet:
-
MIC2204BML-TR.pdf
- Description:
- IC REG BUCK ADJ 600MA 10MLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,430
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Product details
Overview
MIC2204BML-TR from Microchip Technology is a high-efficiency, 2 MHz synchronous buck DC-DC converter with integrated MOSFETs, delivering up to 600 mA output current at 1 V minimum output voltage across a 2.3 V to 5.5 V input range. It features ultra-fast transient response (200 kHz GBW), internal compensation, and support for all-ceramic external components - optimized for Li-ion–powered RF and portable applications.
For engineers reviewing the MIC2204BML-TR datasheet, MIC2204BML-TR pinout, MIC2204BML-TR application, or MIC2204BML-TR equivalent, key selection criteria include its 2 MHz fixed-frequency PWM operation, SYNC_IN/SYNC_OUT daisy-chain capability, 340 µA quiescent current in active mode, thermal/current protection, and VDFN-10L (3 mm × 3 mm) package suitability for space-constrained RF power rails.
Technical Context
The MIC2204BML-TR implements a voltage-mode PWM control architecture with a proprietary internal compensation network enabling stable operation using only a 4.7 µH inductor and 4.7 µF ceramic output capacitor (X5R/X7R). Its 200 kHz gain-bandwidth enables sub-microsecond load transient recovery - critical for powering CPU cores and RF transceivers in cellular handsets.
It integrates complementary P-channel high-side and N-channel low-side MOSFETs (RDS(ON) = 0.72 Ω / 0.55 Ω), supports external clock synchronization from 1.8 MHz to 2.5 MHz via SYNC_IN, and provides open-drain SYNC_OUT for master-slave daisy-chaining of multiple converters - eliminating beat frequencies in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V - supports single-cell Li-ion (2.7–4.2 V) and USB-powered systems without pre-regulation. |
| Output Current | 600 mA max - sufficient for baseband processors, WLAN radios, and PMIC core rails in portable devices. |
| Switching Frequency | 2 MHz nominal (1.8–2.2 MHz typical) - enables compact LC filtering and avoids AM/FM/ISM bands. |
| Feedback Reference | 1.0 V ±2% - sets output voltage via resistor divider; enables precise 1 V–5 V adjustable regulation. |
| Quiescent Current | 340 µA typical - minimizes standby drain in always-on subsystems like Bluetooth/Wi-Fi coexistence modules. |
| Junction Temp Range | –40°C to +125°C - qualified for automotive infotainment and industrial handheld environments. |
| Thermal Resistance θJA | 60°C/W (VDFN-10L) - enables >400 mA continuous output at +85°C ambient with minimal PCB copper. |
Pinout & Package
Package: 10-lead VDFN-10L (3 mm × 3 mm × 0.9 mm body, exposed thermal pad), RoHS-compliant, –40°C to +125°C junction temperature rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch Node | Drives external inductor; connects internally to both high-side P-MOS and low-side N-MOS drains. |
| 2 VIN | Power Input | Supplies IC bias and power stage; requires ≥1 µF X5R/X7R ceramic bypass to GND. |
| 3 SYNC_IN | External Clock Input | Accepts 1.8–2.5 MHz CMOS clock; ties to GND if unused; high logic forces 1.6 MHz fallback. |
| 4 SYNC_OUT | Open-Drain Sync Output | Drives next MIC2204's SYNC_IN; requires external 10 kΩ pull-up for daisy-chain operation. |
| 5 EN | Enable Control | Active-high logic input; <0.52 V disables (IQ ≈ 6.5 µA); hysteresis ensures noise immunity. |
| 6 FB | Feedback Input | Connects to resistor divider; compares against 1.0 V reference to regulate output voltage. |
| 7 BIAS | Internal Bias Supply | 2.3 V regulated output; must be decoupled with 10 nF ceramic - not for external loads. |
| 8–10 GND | Signal & Power Ground | All three pins connect to common ground plane; thermal pad must be soldered for θJA = 60°C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Fast Transient Response | 200 kHz gain-bandwidth enables <1 µs recovery from 50% load steps - essential for burst-mode RF PA supply. |
| SYNCLOCK Daisy-Chaining | Single master SYNC_OUT can synchronize unlimited slaves without external logic - eliminates inter-converter beat tones. |
| All-Ceramic Component Support | Stable with 4.7 µF X5R/X7R output cap and 4.7 µH inductor - eliminates electrolytic bulk caps and reduces board area by >30%. |
| Integrated Power MOSFETs | P/N complementary pair with RDS(ON) ≤ 0.72 Ω - eliminates external FETs and gate drivers, reducing BOM count by 6+ components. |
| Logic-Controlled Micropower Shutdown | EN pin reduces IQ to 6.5 µA - extends battery life in sleep modes of IoT sensors and wearable BLE subsystems. |
Applications
| Cellular Baseband Power | 802.11 WLAN RF Supply |
|---|---|
Use Scenario: Powers ARM Cortex-A series application processor cores and DDR memory I/O rails in smartphones and tablets. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering 1.0–1.2 V @ 600 mA with fast load-step response to handle CPU DVFS transitions. Use Value: 200 kHz GBW ensures <500 ns recovery from 300 mA load steps - prevents voltage droop-induced cache errors during burst processing. | Use Scenario: Supplies 3.3 V or adjustable 2.8–3.6 V to 802.11ac WLAN transceivers and power amplifiers in access points and client devices. IC Role / Device Role / Timing Role: High-SNR, low-noise DC-DC source synchronized to system clock to avoid spectral interference in 2.4 GHz/5 GHz bands. Use Value: 2 MHz fixed-frequency PWM and SYNC_IN capability allow harmonic alignment away from Wi-Fi channel centers - reducing conducted EMI by >15 dBµV. |
| Li-ion–Powered Portable Devices | RF Front-End Module (FEM) Bias |
Use Scenario: Powers display drivers, touch controllers, and audio codecs in battery-operated medical monitors and handheld test equipment. IC Role / Device Role / Timing Role: Efficient step-down converter operating directly from 3.0–4.2 V Li-ion cell, minimizing heat generation in sealed enclosures. Use Value: >95% peak efficiency and 340 µA quiescent current extend runtime by 12–18% versus comparable 1.5 MHz converters under light-load conditions. | Use Scenario: Provides clean, low-noise 5 V or 3.3 V bias to GaAs/GaN power amplifiers and LNA stages in cellular FEMs. IC Role / Device Role / Timing Role: Low-ripple, high-PSRR buck regulator with tight line/load regulation (<0.2%) for sensitive RF analog circuitry. Use Value: Internal compensation and 200 kHz bandwidth suppress switching ripple at PA harmonics - improving ACLR by 3–5 dB in LTE/WCDMA transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRVR | 2.25 V–5.5 V input; 600 mA; 3 MHz switching; 17 µA shutdown current; WSON-6 package (2 mm × 2 mm). | Lacks SYNC_IN/SYNC_OUT; no daisy-chain capability; smaller footprint but higher thermal resistance (θJA = 120°C/W). | Choose when board space is critical and synchronization is unnecessary; verify stability with 2.2 µH inductor. |
| RT8059GJ6 | 2.5 V–5.5 V input; 600 mA; 2 MHz; 25 µA shutdown; DFN-10 (3 mm × 3 mm) with thermal pad. | No SYNC_IN/SYNC_OUT; feedback reference = 0.6 V; lower quiescent current (25 µA active) but no BIAS pin. | Prefer for cost-sensitive designs where 0.6 V reference simplifies feedback network; confirm thermal performance at full load. |
Compared with TPS62231DRVR and RT8059GJ6, the MIC2204BML-TR uniquely combines daisy-chain synchronization, 1.0 V feedback reference for precision low-VOUT regulation, and integrated BIAS rail - making it optimal for multi-converter RF subsystems requiring coordinated timing and minimal external components.
Availability
MIC2204BML-TR is available at Aetrix Electronics and suitable for cellular baseband power, 802.11 WLAN RF supplies, and Li-ion–powered portable devices requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MIC2204BML-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 MIC2204 product line delivers high-frequency, high-efficiency synchronous buck regulators targeting space-constrained, battery-sensitive RF and portable applications - emphasizing fast transient response, low quiescent current, and seamless multi-rail synchronization.
FAQ
What is the maximum output current capability of the MIC2204BML-TR?
The MIC2204BML-TR delivers up to 600 mA of continuous output current at 1 V minimum output voltage, with current limit threshold specified at 0.6 A (typical) and 1.2 A (max) under VFB = 0.7 V conditions. Derating is required above +85°C ambient due to thermal limits of the VDFN-10L package (θJA = 60°C/W); full 600 mA is sustainable at ≤+70°C with adequate PCB copper.
Does the MIC2204BML-TR require external compensation components?
No, the MIC2204BML-TR uses proprietary internal compensation and is designed to be stable with a 4.7 µH inductor and 4.7 µF X5R/X7R ceramic output capacitor for output voltages ≥1.6 V. For outputs <1.6 V or when using feed-forward capacitors, a 10 µF output capacitor is required - no external RC networks or compensation pins are needed.
How does the SYNCLOCK feature work on the MIC2204BML-TR?
The MIC2204BML-TR's SYNCLOCK feature uses the open-drain SYNC_OUT pin to drive the SYNC_IN pin of another MIC2204BML-TR, creating a master-slave daisy chain. The master's oscillator frequency propagates to all slaves, ensuring identical fundamental and harmonic frequencies - eliminating beat tones and simplifying EMI filtering in multi-rail RF systems.
What is the purpose of the BIAS pin on the MIC2204BML-TR?
Pin 7 (BIAS) on the MIC2204BML-TR provides a dedicated 2.3 V internal bias supply for the controller's analog circuitry. It must be decoupled with a 10 nF ceramic capacitor to GND but must not power external circuits - doing so risks instability and violates the device's design specification per DS20006454A-page 9.
Can the MIC2204BML-TR operate with input voltage below 2.3 V?
No - the MIC2204BML-TR has a strict 2.3 V minimum input voltage per Absolute Maximum Ratings and Electrical Characteristics tables. Operation below 2.3 V is undefined and may result in failure to start, erratic regulation, or loss of protection features. For sub-2.3 V inputs, consider Microchip's MIC24045 or alternative ultra-low-VIN buck solutions.
MIC2204BML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad, 10-MLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 600mA
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MLF® (3x3)
MIC2204BML-TR FAQ
1.How can I place an order for MIC2204BML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2204BML-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 MIC2204BML-TR reliable?
The price and inventory of MIC2204BML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2204BML-TR is usually 5 days.
3.What payment methods are accepted for MIC2204BML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2204BML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2204BML-TR?
MIC2204BML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2204BML-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 MIC2204BML-TR?
For technical support, including MIC2204BML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2204BML-TR requirements.
6.How does Aetrix verify that MIC2204BML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2204BML-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 MIC2204BML-TR meets industry standards.
7.What is the process for return or replacement of MIC2204BML-TR?
All MIC2204BML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2204BML-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 MIC2204BML-TR part is unused and in its original packaging.
Return procedure for MIC2204BML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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