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

Microchip Technology MIC33030-4YHJ-TR

Name: MIC33030-4YHJ-TR
Brand: Microchip Technology
SKU: MIC33030-4YHJ-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MIC33030-4YHJ-TR

Manufacturer:: Microchip Technology

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 10-PowerTFDFN, 10-MLF®

Datasheet:: MIC33030-4YHJ-TR.pdf

Description:: IC REG BUCK 1.2V 400MA 10MLF

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MIC33030-4YHJ-TR from Microchip Technology is a 1.2V fixed-output, 400 mA synchronous buck regulator with integrated inductor and HyperLight Load® mode, operating from 2.7V–5.5V input, delivering ±2.5% output voltage accuracy over temperature, and housed in a 2.5 mm × 2.0 mm 10-lead HJDFN package for space-constrained portable power rails.

For engineers reviewing the MIC33030-4YHJ-TR datasheet, MIC33030-4YHJ-TR pinout, MIC33030-4YHJ-TR application, or MIC33030-4YHJ-TR equivalent, key selection considerations include its internal inductor architecture, ultra-low 21 µA quiescent current, 8 MHz PWM operation, 30 mV_PP ripple in HyperLight Load® mode, and –40°C to +125°C junction temperature range for battery-powered edge devices.

Technical Context

The MIC33030-4YHJ-TR implements a proprietary HyperLight Load® control scheme combining minimum on-time/off-time pulse frequency modulation (PFM) at light loads and fixed-frequency 8 MHz PWM in continuous conduction mode above ~150 mA. Its fully integrated power stage includes matched PMOS/NMOS switches with 0.65 Ω / 0.8 Ω R_DS(ON), eliminating external inductor layout and EMI concerns.

It features dual ground paths (AGND and PGND), dedicated SNS pin for remote output sensing, thermal shutdown at 160°C with 20°C hysteresis, and undervoltage lockout with 2.55 V turn-on threshold and 100 mV hysteresis - all optimized for stable core voltage delivery in low-power microcontrollers and RF modules.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.2 V - eliminates external feedback resistors and simplifies BOM for single-rail applications.
Max Output Current	400 mA - supports moderate-power SoCs, Wi-Fi transceivers, and imaging sensors without external boost stages.
Input Voltage Range	2.7 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V), USB 5 V, and regulated 3.3 V supplies.
Quiescent Current	21 µA typical - enables >10-year battery life in always-on IoT sensor nodes drawing <1 mA average load.
Switching Frequency	Up to 8 MHz - allows use of tiny 2.2 µF ceramic output capacitors and reduces EMI filtering requirements.
Output Ripple	30 mV_PP in HyperLight Load® mode - maintains clean supply for noise-sensitive analog/RF circuits during standby.
Junction Temp Range	–40°C to +125°C - qualified for automotive infotainment, industrial handhelds, and outdoor wireless gateways.

Pinout & Package

Package: 10-lead 2.5 mm × 2.0 mm × 1.15 mm HJDFN with exposed thermal pad (ePAD), RoHS-compliant and Pb-free.

Pin/Terminal	Circuit Role	Design Meaning
SNS	Sense Input	Connects directly to VOUT near output capacitor to enable precise remote voltage regulation and minimize load-induced droop.
NC	No Connect	Pin 2 is unconnected internally - must be left floating or tied to AGND/PGND per layout best practice; no routing required.
EN	Enable Control	Logic-high (>0.9 V) enables regulation; logic-low (<0.5 V) shuts down device to 0.01 µA, enabling system-level power gating.
SW	Internal Switch Node	Connects to one end of integrated inductor - not routed externally; requires no PCB trace or filtering component.
VOUT	Regulated Output	Delivers 1.2 V to load; minimum 2.2 µF X5R/X7R ceramic capacitor required between VOUT and PGND.
PGND	Power Ground	High-current return path for switching loop; must be connected to ePAD and kept separate from AGND to avoid noise coupling.
AGND	Analog Ground	Reference for error amplifier and bias circuitry; connects to PGND only at single point near ePAD to prevent ground bounce.
VIN	Input Supply	Accepts 2.7–5.5 V; requires ≥2.2 µF ceramic bypass capacitor placed adjacent to VIN and PGND pins.

Key Features

Feature	Design Value
Integrated Inductor	Eliminates external magnetics, reducing solution size to just two capacitors and enabling 2.5 mm × 2.0 mm footprint.
HyperLight Load® Mode	Delivers 78% efficiency at 1 mA while maintaining ultra-fast transient response for burst-mode processors.
Ultra-Low Quiescent Current	21 µA typical enables multi-year operation from coin cells in wearables and asset trackers.
Thermal & Current Protection	Auto-recovering thermal shutdown (160°C) and cycle-by-cycle current limit (0.41–1 A) ensure robustness under fault conditions.
Small Output Capacitor Support	Stable with ≥2.2 µF X5R/X7R ceramics - cuts BOM cost and board area vs. traditional buck regulators requiring ≥10 µF.

Applications

Mobile Handsets	Portable Navigation Devices (GPS)
Use Scenario: Powering application processor I/O and memory interface rails in compact smartphones with tight thermal budgets. IC Role / Device Role / Timing Role: Primary 1.2 V core supply delivering up to 400 mA with fast load-step response to handle CPU DVFS transitions. Use Value: Internal inductor and 8 MHz switching eliminate external EMI filters, reducing PCB layer count and assembly cost.	Use Scenario: Supplying GPS baseband ICs and RF front-end modules in handheld navigation units powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Fixed 1.2 V rail with ±2.5% accuracy ensures stable reference for high-precision timing recovery and ADC sampling. Use Value: 21 µA quiescent current extends battery runtime during GPS cold-start and satellite acquisition phases.
Wi-Fi/WiMax Modules	Digital Cameras
Use Scenario: Providing regulated 1.2 V to WLAN SoCs during high-throughput data transmission bursts and deep-sleep states. IC Role / Device Role / Timing Role: Buck regulator with HyperLight Load® mode dynamically adjusts switching behavior to maintain efficiency across 1 µA–400 mA load range. Use Value: 30 mV_PP output ripple prevents clock jitter in 2.4 GHz/5 GHz RF synthesizers and improves EVM performance.	Use Scenario: Powering image signal processors (ISPs) and CMOS image sensors in pocket-sized digital cameras with flash LED support. IC Role / Device Role / Timing Role: Core voltage regulator supplying 1.2 V to ISP logic while rejecting noise from high-current flash charging circuits. Use Value: Dual ground separation (AGND/PGND) and SNS pin placement minimize supply-induced image artifacts and banding.

Mobile Handsets

Portable Navigation Devices (GPS)

Use Scenario: Powering application processor I/O and memory interface rails in compact smartphones with tight thermal budgets.

IC Role / Device Role / Timing Role: Primary 1.2 V core supply delivering up to 400 mA with fast load-step response to handle CPU DVFS transitions.

Use Value: Internal inductor and 8 MHz switching eliminate external EMI filters, reducing PCB layer count and assembly cost.

Use Scenario: Supplying GPS baseband ICs and RF front-end modules in handheld navigation units powered by single-cell Li-ion batteries.

IC Role / Device Role / Timing Role: Fixed 1.2 V rail with ±2.5% accuracy ensures stable reference for high-precision timing recovery and ADC sampling.

Use Value: 21 µA quiescent current extends battery runtime during GPS cold-start and satellite acquisition phases.

Wi-Fi/WiMax Modules

Digital Cameras

Use Scenario: Providing regulated 1.2 V to WLAN SoCs during high-throughput data transmission bursts and deep-sleep states.

IC Role / Device Role / Timing Role: Buck regulator with HyperLight Load® mode dynamically adjusts switching behavior to maintain efficiency across 1 µA–400 mA load range.

Use Value: 30 mV_PP output ripple prevents clock jitter in 2.4 GHz/5 GHz RF synthesizers and improves EVM performance.

Use Scenario: Powering image signal processors (ISPs) and CMOS image sensors in pocket-sized digital cameras with flash LED support.

IC Role / Device Role / Timing Role: Core voltage regulator supplying 1.2 V to ISP logic while rejecting noise from high-current flash charging circuits.

Use Value: Dual ground separation (AGND/PGND) and SNS pin placement minimize supply-induced image artifacts and banding.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MIC33030-GYHJ-TR	Fixed 1.8 V output; identical package, pinout, and HyperLight Load® architecture.	Targets higher-voltage DSP cores or legacy 1.8 V I/O interfaces instead of 1.2 V processor cores.	Select when system requires 1.8 V rail with same size, efficiency, and thermal profile as MIC33030-4YHJ-TR.
TPS62840DLCR	1.8 V adjustable (0.6–2.5 V); 1.07 mm × 0.87 mm WCSP package; 300 mA max; 0.5 µA IQ.	Better suited for ultra-low-power MCU sleep modes but lacks integrated inductor and 400 mA capability.	Choose for sub-100 µA average current applications where smallest footprint outweighs need for 400 mA or internal inductor.

Compared with MIC33030-GYHJ-TR, the MIC33030-4YHJ-TR delivers lower output voltage for modern 1.2 V cores while retaining identical thermal performance and layout compatibility; versus TPS62840DLCR, it trades ultra-low IQ for higher current, integrated magnetics, and simplified design - making it optimal for compact, medium-power portable systems.

Availability

MIC33030-4YHJ-TR is available at Aetrix Electronics and suitable for mobile handsets, portable navigation devices, and Wi-Fi modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for MIC33030-4YHJ-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, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with high-reliability silicon and development tools.

The MIC33030 product line delivers highly integrated DC/DC buck regulators targeting space- and power-constrained portable electronics, emphasizing minimal external components, ultra-low IQ, and seamless transition between PFM and PWM modes for dynamic workloads.

FAQ

What is the output voltage of the MIC33030-4YHJ-TR?

The MIC33030-4YHJ-TR provides a fixed 1.2 V output voltage, as indicated by the "4" in its part number per Microchip's identification system. This value is factory-trimmed to ±2.5% accuracy over –40°C to +125°C junction temperature and does not require external feedback resistors. The MIC33030-4YHJ-TR is designed for direct connection to 1.2 V processor cores and memory interfaces without additional regulation stages.

Does the MIC33030-4YHJ-TR require an external inductor?

No, the MIC33030-4YHJ-TR integrates the power inductor within its 2.5 mm × 2.0 mm HJDFN package. This eliminates the need for external magnetics, reduces EMI susceptibility, and simplifies layout - requiring only two external ceramic capacitors (input and output). The MIC33030-4YHJ-TR achieves this with no compromise to 400 mA output capability or 8 MHz switching performance.

What is the shutdown current of the MIC33030-4YHJ-TR?

The MIC33030-4YHJ-TR draws only 0.01 µA (10 nA) typical shutdown current when the EN pin is driven low, as specified in the Electrical Characteristics table. This ultra-low leakage enables long-term storage and zero-power sleep modes in battery-powered devices. The MIC33030-4YHJ-TR maintains this specification across its full –40°C to +125°C operating temperature range.

Can the MIC33030-4YHJ-TR operate from a single-cell Li-ion battery?

Yes, the MIC33030-4YHJ-TR supports input voltages from 2.7 V to 5.5 V, fully covering the discharge curve of a single-cell Li-ion battery (typically 4.2 V fully charged down to 3.0 V cutoff). Its 2.55 V UVLO turn-on threshold ensures reliable startup even as the battery depletes, and the MIC33030-4YHJ-TR sustains regulation through the entire usable voltage range without brownouts.

What package type and dimensions does the MIC33030-4YHJ-TR use?

The MIC33030-4YHJ-TR uses a 10-lead HJDFN package measuring 2.5 mm × 2.0 mm × 1.15 mm with an exposed thermal pad (ePAD). This compact, thermally enhanced outline is optimized for high-density portable PCBs and supports reflow soldering per JEDEC J-STD-020. The MIC33030-4YHJ-TR shares identical mechanical dimensions and land pattern with other MIC33030 variants including MIC33030-GYHJ-TR and MIC33030-JYHJ-TR.

MIC33030-4YHJ-TR Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: HyperLight Load®

Package/Case:: 10-PowerTFDFN, 10-MLF®

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):: 1.2V

Voltage - Output (Max):: -

Current - Output:: 400mA

Frequency - Switching:: 8MHz

Synchronous Rectifier:: Yes

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-MLF® (2.5x2)

MIC33030-4YHJ-TR FAQ

1.How can I place an order for MIC33030-4YHJ-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for MIC33030-4YHJ-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 MIC33030-4YHJ-TR reliable?

The price and inventory of MIC33030-4YHJ-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC33030-4YHJ-TR is usually 5 days.

3.What payment methods are accepted for MIC33030-4YHJ-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC33030-4YHJ-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MIC33030-4YHJ-TR?

MIC33030-4YHJ-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MIC33030-4YHJ-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 MIC33030-4YHJ-TR?

For technical support, including MIC33030-4YHJ-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC33030-4YHJ-TR requirements.

6.How does Aetrix verify that MIC33030-4YHJ-TR is sourced from the original manufacturer or authorized distributors?

All MIC33030-4YHJ-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 MIC33030-4YHJ-TR meets industry standards.

7.What is the process for return or replacement of MIC33030-4YHJ-TR?

All MIC33030-4YHJ-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC33030-4YHJ-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 MIC33030-4YHJ-TR part is unused and in its original packaging.

Return procedure for MIC33030-4YHJ-TR:

1.Submit a request within 90 days.

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

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