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Microchip Technology MIC2810-4GKYML-TR
- Part No.:
- MIC2810-4GKYML-TR
- Manufacturer:
- Microchip Technology
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 16-VQFN Exposed Pad, 16-MLF®
- Datasheet:
-
MIC2810-4GKYML-TR.pdf
- Description:
- IC REG TRPL BUCK/LNR 2MHZ 16MLF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MIC2810-4GKYML-TR from Microchip Technology is a digital power management IC integrating a 2 MHz, 600 mA PWM DC/DC converter and two independent 300 mA LDOs (1.2 V / 1.8 V / 2.6 V outputs), with LOWQ ultra-low-noise light-load mode, integrated POR, and 16-pin 3 mm × 3 mm QFN packaging. It delivers stable multi-rail power for embedded MPU subsystems requiring low quiescent current and RF-clean operation.
For engineers reviewing the MIC2810-4GKYML-TR datasheet, MIC2810-4GKYML-TR pinout, MIC2810-4GKYML-TR application, or MIC2810-4GKYML-TR equivalent, key selection criteria include verified 30 µA LOWQ-mode IQ, 53 µVRMS DC/DC output noise in light-load mode, dual-LDO dropout voltage ≤142 mV at 300 mA, thermal shutdown at 160°C, and confirmed 16-pin QFN package mapping with SGND/PGND separation.
Technical Context
The MIC2810-4GKYML-TR implements a dual-domain ground architecture (SGND for control/reference, PGND for high-current PWM switching), enabling clean signal integrity in mixed-signal systems. Its LOWQ mode disables the PWM stage and routes DC/DC output through an internal LDO path, reducing total IQ to 30 µA while maintaining 60 mA load capability and eliminating switching ripple.
Power-on reset is implemented as an open-drain POR output with programmable delay via CSET capacitor (1.25 µA current source), supporting sequencing across three independently enabled rails. Each regulator-DC/DC, LDO1, and LDO2-features independent enable inputs (EN, EN1, EN2), adjustable UVLO thresholds (2.55 V typ.), and guaranteed operation from –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | VIN/VIN2: 2.7–5.5 V; VIN1: 1.65–5.5 V - supports wide-input battery and rail-flexible designs including single-cell Li-ion and 3.3 V/5 V system supplies. |
| DC/DC Output Current | 600 mA in PWM mode - sufficient to power core logic of ARM Cortex-M7 or RISC-V SoCs without external boost. |
| LDO Output Current | 300 mA per LDO (LDO1/LDO2) - enables simultaneous powering of I/O banks, sensors, and RF front-end bias rails. |
| LOWQ Mode IQ | 30 µA total - extends battery life in always-on wearable or IoT edge nodes during sleep states. |
| DC/DC Output Noise | 53 µVRMS (10 Hz–100 kHz) in LOWQ mode - avoids interference with sub-GHz or 2.4 GHz RF receivers requiring <100 µVRMS noise floor. |
| Thermal Shutdown | 160°C with 23°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
| Package | 16-pin 3 mm × 3 mm QFN, 0.85 mm height - enables compact layout in space-constrained portable PCBs with exposed thermal pad. |
Pinout & Package
Package: 16-pin, 3 mm × 3 mm, 0.85 mm height QFN with exposed thermal pad (ML suffix). Pin 1 identified by dot marking. RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (LOWQ) | Mode select input | Active-low control: LOW = 30 µA ultra-low-noise LDO-based DC/DC output (60 mA max); HIGH = full 600 mA PWM mode. |
| 2 (BIAS) | Bias supply input | Powers internal reference and control circuitry via 6 Ω internal resistor; requires 0.1 µF bypass to SGND. |
| 3 (SGND) | Signal ground | Reference return for BIAS, POR, CSET, and enable logic - must be routed separately from PGND to avoid noise coupling. |
| 4 (PGND) | Power ground | High-current return path for SW node and DC/DC inductor - connects to thermal pad for heat dissipation. |
| 5 (SW) | Switch node | Drives external 2.2 µH inductor; high dv/dt node requiring short, shielded routing away from analog/sensitive traces. |
| 6 (VIN) | Main input supply | Primary input for DC/DC controller, reference, and shared circuitry; must connect to Pin 7 (VIN2) and decoupled with 4.7 µF ceramic to PGND. |
| 7 (VIN2) | LDO2 input | Supplies LDO2; tied to VIN for common-input configurations; minimum 2.7 V required. |
| 8 (LDO2) | LDO2 regulated output | Fixed 2.6 V output (per part number decoding); requires ≥2.2 µF X7R/X5R ceramic capacitor to PGND for stability. |
| 9 (LDO) | LDO output node | Internal connection point between DC/DC and LDO paths; used only in LOWQ mode to deliver clean 1.2 V output. |
| 10 (VIN1) | LDO1 input | Supplies LDO1; supports down to 1.65 V - enables use with partially discharged batteries or intermediate rails. |
| 11 (LDO1) | LDO1 regulated output | Fixed 1.8 V output; independent enable (EN1); dropout ≤142 mV at 300 mA ensures regulation under heavy load. |
| 12 (POR) | Open-drain reset output | Asserts low if any output (DC/DC, LDO1, LDO2) falls below 91% nominal; requires external pull-up; ESD-safe for backup domain interfacing. |
| 13 (CSET) | POR delay timing | 1.25 µA current source charges external capacitor to set POR assertion delay (1 µs/pF); no grounding allowed. |
| 14 (EN1) | LDO1 enable | Active-high CMOS input (VIH ≥1.0 V); controls LDO1 independently; floating prohibited. |
| 15 (EN) | DC/DC enable | Active-high CMOS input; places SW node in high-impedance tri-state when disabled; critical for power sequencing. |
| 16 (EN2) | LDO2 enable | Active-high CMOS input; enables/disables 2.6 V LDO2 rail; supports dynamic power gating in multi-sleep-state systems. |
Key Features
| Feature | Design Value |
|---|---|
| LOWQ ultra-low-noise mode | Reduces total IQ to 30 µA while delivering 60 mA from LDO-based DC/DC path - eliminates PFM ripple that disrupts RF/analog circuits. |
| Dual-domain ground separation | SGND and PGND pins isolate sensitive control logic from high-current switching return paths - improves PSRR and reduces ground bounce. |
| Programmable POR delay | CSET pin uses 1.25 µA current source to charge external capacitor, enabling precise POR assertion delay up to 1 second - supports complex multi-rail power sequencing. |
| Independent triple-rail enable control | EN, EN1, EN2 allow staggered startup/shutdown of DC/DC, LDO1 (1.8 V), and LDO2 (2.6 V) - essential for meeting SoC core/I/O/bootloader voltage sequencing requirements. |
| Backup-power-safe POR interface | Open-drain POR output has no clamping diodes to supply rails - permits direct connection to host MCU I/O powered by backup battery without leakage or unintended turn-on. |
Applications
| Embedded MPU Power Sequencing | Low-Power Wearable Sensor Hub |
|---|---|
|
Use Scenario: Powering ARM Cortex-A53-based industrial HMI with strict 1.2 V core / 1.8 V I/O / 2.6 V display bias sequencing. IC Role / Device Role / Timing Role: MIC2810-4GKYML-TR provides three precisely timed, independently enabled rails with POR monitoring and CSET-programmed delay to meet SoC boot requirements. Use Value: Eliminates need for discrete sequencers and external POR ICs; reduces BOM count by 3–4 components while guaranteeing <500 µs turn-on time per rail. |
Use Scenario: Multi-sensor wristband with optical HR monitor, IMU, and BLE radio operating on coin-cell battery. IC Role / Device Role / Timing Role: MIC2810-4GKYML-TR powers sensor analog front-end (1.8 V), BLE SoC core (1.2 V), and display driver (2.6 V) with dynamic rail gating via EN/EN1/EN2. Use Value: Achieves 30 µA system sleep current using LOWQ mode, extending battery life beyond 14 days - validated per typical load profile in DS20005910B Figure 2-25. |
| Sub-GHz IoT Edge Node | Backup Power System Monitor |
|
Use Scenario: LoRaWAN end-node with SX1276 transceiver, STM32WL MCU, and environmental sensors. IC Role / Device Role / Timing Role: MIC2810-4GKYML-TR supplies clean 1.2 V to MCU core, 1.8 V to sensors, and 2.6 V to RF PA; LOWQ mode suppresses switching noise during RX sensitivity testing. Use Value: 53 µVRMS DC/DC output noise in LOWQ mode meets SX1276's –148 dBm sensitivity requirement without additional LC filtering. |
Use Scenario: Industrial PLC with supercapacitor backup maintaining real-time clock and SRAM during main power loss. IC Role / Device Role / Timing Role: MIC2810-4GKYML-TR monitors primary 3.3 V rail and asserts POR to MCU when voltage drops; POR output interfaces directly to backup domain GPIO. Use Value: ESD-safe, clamp-free POR pin enables reliable handoff to backup power without parasitic leakage - confirmed in Section 3.10 and Figure 2-30–2-32. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC2810-4GM YML-TR | Identical architecture and pinout; differs only in LDO2 output: 2.8 V vs. 2.6 V on MIC2810-4GKYML-TR. | Requires verification of 2.8 V vs. 2.6 V tolerance margin for target load (e.g., display driver IC absolute max rating). | Select MIC2810-4GKYML-TR when 2.6 V LDO2 is required for precise biasing of 2.5 V–2.7 V tolerant peripherals. |
| MIC2810-4GSYML-TR | Same package and control features; LDO2 output is 3.3 V instead of 2.6 V; all other specs (IQ, noise, sequencing) match. | Suitable where higher LDO2 voltage is needed for legacy interface ICs or level-shifting circuits requiring ≥3.0 V. | Choose MIC2810-4GKYML-TR for newer low-voltage displays or sensors specifying 2.5 V–2.7 V nominal supply. |
Compared with MIC2810-4GKYML-TR, the -4GMYML-TR variant offers 2.8 V LDO2 for margin-critical 2.7 V loads, while the -4GSYML-TR provides 3.3 V for legacy interface compatibility - both retain identical LOWQ noise performance, POR functionality, and thermal behavior, enabling drop-in substitution where output voltage alignment permits.
Availability
MIC2810-4GKYML-TR is available at Aetrix Electronics and suitable for embedded MPU power sequencing, low-power wearable sensor hubs, sub-GHz IoT edge nodes, backup power system monitors, and portable medical devices requiring stable component supply across industrial temperature range (–40°C to +125°C).
Supply support for MIC2810-4GKYML-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 Inc. is a leading provider of microcontroller, analog, FPGA, and power management solutions, serving automotive, industrial, communications, and consumer markets with vertically integrated silicon and software tools.
The MIC2810 product line delivers highly integrated, thermally robust power management ICs optimized for space-constrained, battery-sensitive applications requiring precise multi-rail sequencing, ultra-low-noise operation, and backup-power-safe monitoring.
FAQ
What output voltages does the MIC2810-4GKYML-TR provide?
The MIC2810-4GKYML-TR provides three fixed output voltages: 1.2 V from the DC/DC converter, 1.8 V from LDO1, and 2.6 V from LDO2 - as confirmed by Microchip's Product Identification System (DS20005910B, page 23), where "4GK" maps to 1.2V/1.8V/2.6V. These values are factory-trimmed and do not require external feedback resistors.
How does the LOWQ mode affect DC/DC output capability in the MIC2810-4GKYML-TR?
In LOWQ mode (LOWQ pin ≤0.2 V), the MIC2810-4GKYML-TR disables its PWM switch and routes the DC/DC output through an internal LDO path, limiting maximum output current to 60 mA but reducing total IQ to 30 µA and eliminating switching noise (53 µVRMS). This mode is intended for light-load standby, not full-power operation.
Can the MIC2810-4GKYML-TR support independent power sequencing of its three outputs?
Yes - the MIC2810-4GKYML-TR supports full independent sequencing via three dedicated enable pins (EN for DC/DC, EN1 for LDO1, EN2 for LDO2) and a programmable POR delay set by the CSET capacitor. Figure 2-30 through 2-32 in DS20005910B demonstrate verified staggered enable behavior with POR re-assertion on each transition.
What is the recommended output capacitance for each regulator in the MIC2810-4GKYML-TR?
Microchip specifies a minimum 2.2 µF X7R or X5R ceramic capacitor for stability on all three outputs: DC/DC (LDO pin), LDO1, and LDO2 (DS20005910B, Sections 4.1 and Table 3-1). Larger values improve transient response but are not required; Z5U/Y5V dielectrics are explicitly discouraged due to excessive capacitance drift over temperature.
Is the POR output of the MIC2810-4GKYML-TR compatible with backup power domains?
Yes - the POR output is an open-drain N-channel device with no ESD clamping diodes to VIN or other supply rails (DS20005910B, Section 3.10). This allows safe connection to host I/O pins powered by backup batteries or supercapacitors without risk of parasitic leakage, even when main power is removed.
MIC2810-4GKYML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 16-VQFN Exposed Pad, 16-MLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) (1), Linear (LDO) (2)
- Number of Outputs:
- 3
- Frequency - Switching:
- 2MHz
- Voltage/Current - Output 1:
- 1.2V, 600mA
- Voltage/Current - Output 2:
- 1.8V, 300mA
- Voltage/Current - Output 3:
- 2.6V, 300mA
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MLF® (4x4)
MIC2810-4GKYML-TR FAQ
1.How can I place an order for MIC2810-4GKYML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2810-4GKYML-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 MIC2810-4GKYML-TR reliable?
The price and inventory of MIC2810-4GKYML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2810-4GKYML-TR is usually 5 days.
3.What payment methods are accepted for MIC2810-4GKYML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2810-4GKYML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2810-4GKYML-TR?
MIC2810-4GKYML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2810-4GKYML-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 MIC2810-4GKYML-TR?
For technical support, including MIC2810-4GKYML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2810-4GKYML-TR requirements.
6.How does Aetrix verify that MIC2810-4GKYML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2810-4GKYML-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 MIC2810-4GKYML-TR meets industry standards.
7.What is the process for return or replacement of MIC2810-4GKYML-TR?
All MIC2810-4GKYML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2810-4GKYML-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 MIC2810-4GKYML-TR part is unused and in its original packaging.
Return procedure for MIC2810-4GKYML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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