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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Microchip Technology MIC23031-GYMT-TR

Name: MIC23031-GYMT-TR
Brand: Microchip Technology
SKU: MIC23031-GYMT-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MIC23031-GYMT-TR

Manufacturer:: Microchip Technology

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 6-UFDFN Exposed Pad, 6-TMLF®

Datasheet:: MIC23031-GYMT-TR.pdf

Description:: IC REG BUCK 1.8V 400MA 6TMLF

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MIC23031-GYMT-TR from Microchip Technology is a fixed 1.8 V, 400 mA synchronous buck regulator with HyperLight Load® mode, operating from 2.7 V to 5.5 V input and delivering up to 93% efficiency at full load. It features 4 MHz PWM switching, 21 µA quiescent current, and ultra-low 3 mV_PP output ripple in full PWM mode-designed for powering processor cores in space-constrained portable electronics.

For engineers reviewing the MIC23031-GYMT-TR datasheet, MIC23031-GYMT-TR pinout, MIC23031-GYMT-TR application, or MIC23031-GYMT-TR equivalent, key selection criteria include its 1.6 mm × 1.6 mm TDFN package, –40°C to +125°C junction temperature range, 0.01 µA shutdown current, and compatibility with sub-1 mm height designs using 0.47 µH inductors and 2.2 µF ceramic capacitors.

Technical Context

The MIC23031-GYMT-TR implements a proprietary HyperLight Load® control architecture that dynamically transitions between pulse-frequency modulation (PFM) at light loads and fixed 4 MHz PWM at higher loads-enabling both 88% efficiency at 1 mA and 93% at 400 mA. Its internal PMOS/NMOS synchronous rectification eliminates external diode losses.

This device integrates undervoltage lockout (2.55 V typical), soft-start (100 µs), overtemperature shutdown (160°C), and current-limit protection (0.7 A typical). The fixed-output variant uses AGND and PGND separation for noise-sensitive analog biasing while maintaining low-noise regulation via dedicated SNS feedback routing.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.7 V to 5.5 V - supports single-cell Li-ion, USB, and 3.3 V rail inputs without external LDO pre-regulation.
Output Voltage	Fixed 1.8 V ±2.5% - factory-trimmed for core voltage supply to ARM Cortex-M, DSPs, and RF SoCs.
Max Output Current	400 mA - sufficient for low-power microcontrollers and wireless baseband processors.
Switching Frequency	4 MHz nominal - enables use of tiny 0.47 µH inductors and reduces EMI filtering burden.
Quiescent Current	21 µA typical - extends battery life in always-on sensor nodes and standby modes.
Shutdown Current	0.01 µA - ensures negligible drain during system sleep or power-off states.
Output Ripple	3 mV_PP in full PWM mode - meets tight noise requirements for ADC references and PLL supplies.
Junction Temp Range	–40°C to +125°C - qualified for automotive infotainment modules and industrial handhelds.

Pinout & Package

Package: 6-Lead TDFN (1.6 mm × 1.6 mm, MT suffix), thermally enhanced ePAD connected to PGND.

Pin/Terminal	Circuit Role	Design Meaning
VIN (Pin 1)	Power Input	Accepts 2.7–5.5 V; requires local 2.2 µF ceramic bypass capacitor to PGND for high-frequency noise suppression.
SW (Pin 2)	Switch Node	Drives external inductor; high dv/dt node requiring short, isolated routing away from analog traces.
SNS (Pin 3)	Output Sense	Direct connection to VOUT near output capacitor; enables accurate regulation independent of PCB trace IR drop.
EN (Pin 4)	Enable Control	Logic-compatible input (0.9 V threshold); must be actively driven-floating causes undefined operation.
AGND (Pin 5)	Analog Ground	Reference ground for error amplifier and reference; separate from PGND to minimize switching noise coupling.
PGND (Pin 6)	Power Ground	High-current return path for VIN, SW, and inductor; connects to ePAD for thermal dissipation.

Key Features

Feature	Design Value
HyperLight Load® Mode	Enables PFM operation below ~4–70 mA (inductor-dependent), sustaining >88% efficiency at 1 mA while minimizing idle power loss.
Ultra-Fast Transient Response	Delivers sub-10 µs recovery from 10–90% load steps-critical for burst-mode processors and dynamic voltage scaling.
Low-Ripple Full-PWM Operation	Maintains 3 mV_PP output ripple at 400 mA/4 MHz, eliminating need for additional LC filtering in noise-sensitive rails.
Sub-1 mm Height Solution	Supports 0.47 µH inductors and 2.2 µF X5R/X7R capacitors, enabling total solution height <1 mm for ultra-thin wearables and dongles.
Integrated Protection	Includes UVLO (2.55 V), thermal shutdown (160°C), and current limit (0.7 A typical)-reducing BOM count and layout risk.

Applications

Mobile Handsets	Portable Navigation Devices (GPS)
Use Scenario: Powering application processor cores and memory I/O in dual-SIM smartphones with aggressive battery life targets. IC Role / Device Role / Timing Role: Primary 1.8 V core regulator supplying ARM Cortex-A series CPUs during active and light-load states. Use Value: HyperLight Load® maintains >88% efficiency at 1 mA idle current, directly extending standby time by reducing quiescent drain.	Use Scenario: Regulating GPS baseband IC voltage in compact vehicle-mounted or handheld navigation units. IC Role / Device Role / Timing Role: Fixed 1.8 V supply for GNSS RF front-end and correlator logic under varying satellite signal conditions. Use Value: 4 MHz switching allows use of miniature 0.47 µH inductors, shrinking total DC/DC footprint to fit within tight GPS module PCB real estate.
WiFi/WiMax Modules	USB-Powered Devices
Use Scenario: Delivering clean 1.8 V to IEEE 802.11ac PHY and MAC ICs in M.2 or mini-PCIe wireless cards. IC Role / Device Role / Timing Role: Low-noise buck converter with 3 mV_PP ripple ensuring minimal phase noise impact on 5 GHz RF synthesizers. Use Value: Dedicated SNS pin routing and AGND/PGND separation suppress switching noise coupling into adjacent RF traces.	Use Scenario: Powering embedded controllers and sensors in bus-powered USB peripherals such as HID keyboards or diagnostic dongles. IC Role / Device Role / Timing Role: Input-direct buck regulator accepting 4.75–5.25 V USB VBUS and stepping down to 1.8 V with no intermediate LDO. Use Value: 93% peak efficiency minimizes self-heating inside sealed plastic enclosures where thermal dissipation is limited.

Mobile Handsets

Portable Navigation Devices (GPS)

Use Scenario: Powering application processor cores and memory I/O in dual-SIM smartphones with aggressive battery life targets.

IC Role / Device Role / Timing Role: Primary 1.8 V core regulator supplying ARM Cortex-A series CPUs during active and light-load states.

Use Value: HyperLight Load® maintains >88% efficiency at 1 mA idle current, directly extending standby time by reducing quiescent drain.

Use Scenario: Regulating GPS baseband IC voltage in compact vehicle-mounted or handheld navigation units.

IC Role / Device Role / Timing Role: Fixed 1.8 V supply for GNSS RF front-end and correlator logic under varying satellite signal conditions.

Use Value: 4 MHz switching allows use of miniature 0.47 µH inductors, shrinking total DC/DC footprint to fit within tight GPS module PCB real estate.

WiFi/WiMax Modules

USB-Powered Devices

Use Scenario: Delivering clean 1.8 V to IEEE 802.11ac PHY and MAC ICs in M.2 or mini-PCIe wireless cards.

IC Role / Device Role / Timing Role: Low-noise buck converter with 3 mV_PP ripple ensuring minimal phase noise impact on 5 GHz RF synthesizers.

Use Value: Dedicated SNS pin routing and AGND/PGND separation suppress switching noise coupling into adjacent RF traces.

Use Scenario: Powering embedded controllers and sensors in bus-powered USB peripherals such as HID keyboards or diagnostic dongles.

IC Role / Device Role / Timing Role: Input-direct buck regulator accepting 4.75–5.25 V USB VBUS and stepping down to 1.8 V with no intermediate LDO.

Use Value: 93% peak efficiency minimizes self-heating inside sealed plastic enclosures where thermal dissipation is limited.

Equivalent & Alternatives

The following parts are listed as comparable options for similar buck regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS62231DRVR	Fixed 1.8 V, 400 mA, 3–6 V input, 2.25 MHz switching, 22 µA IQ, 1.5 mm × 1.5 mm WSON	Larger minimum inductor (1 µH), higher output ripple (10 mV_PP), no HyperLight Load® PFM mode	Choose when board space permits slightly larger inductor and lower-cost WSON packaging is preferred over TDFN thermal performance.
RT8059GJ6	Fixed 1.8 V, 600 mA, 2.5–5.5 V input, 3 MHz switching, 30 µA IQ, 1.6 mm × 1.6 mm DFN	Higher max current but 30 µA IQ vs. 21 µA; no documented PFM/PWM transition optimization for ultra-light loads	Choose when higher current headroom is needed and 9 mV_PP ripple is acceptable for non-PLL applications.

Compared with TPS62231DRVR and RT8059GJ6, the MIC23031-GYMT-TR delivers superior light-load efficiency via HyperLight Load®, tighter output ripple control, and optimized 4 MHz operation for smallest passive component size-making it the preferred choice for battery-critical, space-constrained 1.8 V core rails.

Availability

MIC23031-GYMT-TR is available at Aetrix Electronics and suitable for mobile handsets, portable navigation devices, and USB-powered peripherals requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MIC23031-GYMT-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 MIC23031 product line delivers high-efficiency, ultra-small-footprint DC/DC regulators targeting battery-powered portable electronics where board area, thermal performance, and light-load efficiency are critical design constraints.

FAQ

What is the output voltage tolerance of the MIC23031-GYMT-TR?

The MIC23031-GYMT-TR has a fixed 1.8 V output with ±2.5% accuracy over temperature and line/load conditions, as specified in the Electrical Characteristics table (VOUT parameter). This tolerance is achieved through factory trimming and maintained across –40°C to +125°C junction temperature, making MIC23031-GYMT-TR suitable for precision core voltage applications in automotive and industrial environments.

Does the MIC23031-GYMT-TR require an external feedback resistor network?

No, the MIC23031-GYMT-TR is the fixed-output variant and does not require external feedback resistors. Its 1.8 V regulation is internally set; only the adjustable versions (e.g., MIC23031-AYMT-TR) use the FB pin with resistor dividers. The MIC23031-GYMT-TR uses the SNS pin for output sensing and relies on internal reference circuitry-simplifying layout and reducing BOM count.

What is the recommended inductor value for the MIC23031-GYMT-TR in a typical 1.8 V application?

Microchip recommends a 1.0 µH inductor for balanced transient response, efficiency, and output ripple in standard 1.8 V applications. However, the MIC23031-GYMT-TR supports inductors from 0.47 µH to 4.7 µH: 0.47 µH optimizes transient speed, while 4.7 µH minimizes ripple. All values maintain stability with ≥2.2 µF X5R/X7R ceramic output capacitors-enabling flexible trade-offs without redesigning MIC23031-GYMT-TR's control loop.

How does the MIC23031-GYMT-TR achieve ultra-low output ripple in full PWM mode?

The MIC23031-GYMT-TR achieves 3 mV_PP output ripple in full PWM mode through synchronous rectification, precise duty-cycle control, and optimized gate drive timing-minimizing dead-time losses and voltage spikes. Combined with the dedicated SNS pin for Kelvin sensing and internal compensation tuned for small ceramic capacitors, MIC23031-GYMT-TR avoids the high-frequency ringing common in asynchronous buck converters, even with 2.2 µF output capacitance.

Can the MIC23031-GYMT-TR operate with input voltages below 2.7 V?

No, the MIC23031-GYMT-TR has a guaranteed operating input range of 2.7 V to 5.5 V. Below 2.7 V, undervoltage lockout (UVLO) activates at 2.55 V typical, disabling regulation. Attempting operation below this threshold risks erratic behavior or failure to start. For sub-2.7 V inputs, consider Microchip's MIC24045 or alternative low-VIN buck regulators-not the MIC23031-GYMT-TR.

MIC23031-GYMT-TR Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: HyperLight Load®

Package/Case:: 6-UFDFN Exposed Pad, 6-TMLF®

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Fixed

Number of Outputs:: 1

Voltage - Input (Min):: 2.7V

Voltage - Input (Max):: 5.5V

Voltage - Output (Min/Fixed):: 1.8V

Voltage - Output (Max):: -

Current - Output:: 400mA

Frequency - Switching:: 4MHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 6-TMLF® (1.6x1.6)

MIC23031-GYMT-TR FAQ

1.How can I place an order for MIC23031-GYMT-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for MIC23031-GYMT-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 MIC23031-GYMT-TR reliable?

The price and inventory of MIC23031-GYMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23031-GYMT-TR is usually 5 days.

3.What payment methods are accepted for MIC23031-GYMT-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23031-GYMT-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MIC23031-GYMT-TR?

MIC23031-GYMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MIC23031-GYMT-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 MIC23031-GYMT-TR?

For technical support, including MIC23031-GYMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23031-GYMT-TR requirements.

6.How does Aetrix verify that MIC23031-GYMT-TR is sourced from the original manufacturer or authorized distributors?

All MIC23031-GYMT-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 MIC23031-GYMT-TR meets industry standards.

7.What is the process for return or replacement of MIC23031-GYMT-TR?

All MIC23031-GYMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC23031-GYMT-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 MIC23031-GYMT-TR part is unused and in its original packaging.

Return procedure for MIC23031-GYMT-TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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