My Inquiry
My Account
Microchip Technology MIC23250-G4YMT-TR
- Part No.:
- MIC23250-G4YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-UFDFN, 10-TMLF®
- Datasheet:
-
MIC23250-G4YMT-TR.pdf
- Description:
- IC REG BUCK 1.2V/1.8V DL 10TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:803
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC23250-G4YMT-TR from Micrel is a 4MHz dual synchronous buck regulator delivering 400mA per channel with HyperLight Load™ mode, designed for space-constrained portable electronics requiring ultra-low quiescent current (33µA) and high light-load efficiency (85% at 1mA). It provides fixed 1.2V and 1.8V outputs in a 10-pin 2mm × 2mm Thin MLF® package, supporting sub-1mm profile designs using only 1µH inductors and 4.7µF ceramic capacitors.
For engineers reviewing the MIC23250-G4YMT-TR datasheet, MIC23250-G4YMT-TR pinout, MIC23250-G4YMT-TR application, or MIC23250-G4YMT-TR equivalent, key selection criteria include dual-output voltage accuracy (±2.5%), 4MHz PWM operation with ultra-fast transient response, low output ripple (20mVpp in HyperLight Load™ mode), and –40°C to +125°C junction temperature range suitability for mobile and USB-powered devices.
Technical Context
The MIC23250-G4YMT-TR integrates two independent synchronous buck regulators sharing a common 2.7V–5.5V input supply, each featuring proprietary HyperLight Load™ control that switches between pulse-frequency modulation (PFM) at light loads and fixed 4MHz PWM at higher loads. Its architecture uses internal PMOS/NMOS power stages with 0.6Ω/0.8Ω typical ON-resistance and supports independent enable control via EN1 and EN2 pins.
It employs separate analog (AVIN) and power (VIN) inputs with dedicated AGND and PGND pins to minimize noise coupling, and uses SNS1/SNS2 pins for direct output sensing-enabling precise regulation without external feedback resistors. The device transitions into continuous conduction mode (CCM) above ~70mA per channel when using a 1µH inductor, maintaining peak efficiency up to 94%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion, USB 5V, and regulated 3.3V rails without external LDO pre-regulation. |
| Output Voltages | Fixed 1.2V and 1.8V - optimized for core logic and I/O voltage domains in mobile SoCs and FPGAs. |
| Max Output Current | 400mA per channel - sufficient to power multiple low-power processors or peripheral ICs simultaneously. |
| Quiescent Current | 33µA (both outputs enabled) - enables >1-week battery runtime in always-on sensor or standby modes. |
| Switching Frequency | 4MHz nominal - allows use of tiny 1µH inductors and reduces EMI fundamental frequency beyond typical RF bands. |
| Output Ripple | 20mVpp in HyperLight Load™ mode; 3mV in full PWM - ensures clean supply for noise-sensitive analog circuits and PLLs. |
| Operating Temperature | –40°C to +125°C junction - qualified for automotive infotainment modules and industrial handhelds. |
Pinout & Package
Package: 10-pin 2mm × 2mm Thin MLF® (exposed thermal pad), Pb-free, RoHS-compliant, 70°C/W θJA.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SNS1 | Sense input for VOUT1 - connects directly to 1.2V output node for accurate regulation without resistor divider. |
| 2 | EN1 | Enable input for Channel 1 - logic-high (>0.8V) activates 1.2V output; must not be left floating. |
| 3 | AGND | Analog ground reference - externally tied to PGND but routed separately to avoid switching noise injection into control circuitry. |
| 4 | SW1 | Switch node for Channel 1 - drives external 1µH inductor; requires short, low-inductance PCB trace to minimize EMI and voltage spikes. |
| 5 | PGND | Power ground return - carries high pulsed currents from both channels; must connect to thermal pad and bulk capacitor ground plane. |
| 6 | VIN | Main power input - supplies internal MOSFETs; requires ≥2.2µF ceramic bypass capacitor placed within 2mm of pin and PGND. |
| 7 | SW2 | Switch node for Channel 2 - drives second 1µH inductor; layout symmetry recommended to balance thermal and EMI performance. |
| 8 | AVIN | Analog supply input - powers error amplifiers and reference; tied to VIN but bypassed with 0.01µF capacitor near pin for noise rejection. |
| 9 | EN2 | Enable input for Channel 2 - independent logic control for 1.8V rail; supports staggered power-up sequencing. |
| 10 | SNS2 | Sense input for VOUT2 - connects directly to 1.8V output node; enables tight regulation without external feedback components. |
Key Features
| Feature | Design Value |
|---|---|
| HyperLight Load™ mode | Enables PFM operation below ~70mA/channel, achieving 85% efficiency at 1mA while maintaining <20mVpp ripple. |
| Dual independent enable | EN1 and EN2 allow sequenced startup/shutdown of 1.2V and 1.8V rails-critical for FPGA or multi-core processor power management. |
| Integrated MOSFETs | Internal 0.6Ω PMOS / 0.8Ω NMOS switches eliminate external power devices, reducing BOM count and board area by >30% vs discrete solutions. |
| Ultra-small solution size | 2mm × 2mm IC + six passives (2×inductors, 3×capacitors, 1×bypass cap) fits within 12mm² footprint-ideal for compact GPS and camera modules. |
| Low-noise analog partitioning | Dedicated AVIN, AGND, and SNS pins isolate sensitive control circuitry from high-current switching paths, improving PSRR by >20dB at 1MHz. |
Applications
| Mobile Handsets | Portable Navigation Devices (GPS) |
|---|---|
|
Use Scenario: Powering application processor cores (1.2V) and RF transceiver I/O (1.8V) in slim smartphone designs with limited PCB real estate. IC Role / Device Role / Timing Role: Dual-output DC-DC converter providing tightly regulated, low-noise supplies with independent enable control for dynamic voltage scaling. Use Value: Enables 12-hour standby time via 33µA quiescent current and eliminates need for secondary LDOs, reducing total solution height to <1mm. |
Use Scenario: Supplying GPS baseband IC (1.2V) and RF front-end (1.8V) in vehicle-mounted or handheld navigation units operating across wide temperature ranges. IC Role / Device Role / Timing Role: High-efficiency dual buck regulator maintaining stable output under rapid load transients caused by GNSS signal acquisition bursts. Use Value: Delivers ultra-fast transient response (<10µs recovery) and ±2.5% output accuracy over –40°C to +125°C, ensuring reliable satellite lock in extreme environments. |
| Wireless LAN Cards | USB-Powered Devices |
|
Use Scenario: Powering 802.11n Wi-Fi SoC (1.2V core, 1.8V PHY) in mini-PCIe or M.2 form factor adapters with strict thermal limits. IC Role / Device Role / Timing Role: Compact dual buck regulator delivering 400mA/channel with minimal thermal rise, leveraging 4MHz switching to shrink passive size. Use Value: Achieves 94% peak efficiency at 200mA, reducing heat dissipation by 40% vs lower-frequency alternatives-critical for fanless embedded enclosures. |
Use Scenario: Regulating USB 5V input to 1.2V/1.8V for portable SSDs, dongles, or audio interfaces drawing up to 400mA per rail. IC Role / Device Role / Timing Role: Input-voltage-flexible dual buck converter supporting USB-C PD sources while maintaining low EMI for EMC compliance. Use Value: 4MHz operation shifts switching harmonics above 100MHz, easing filter design and enabling use of low-cost 0603 capacitors and chip inductors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62400DRVR | 2.5V–6V input; adjustable outputs; 3MHz switching; 2.2µA quiescent current (single-channel active); 12-pin 2.5mm × 2.5mm WSON. | Requires external feedback resistors; better suited for systems needing programmable voltages and ultra-low IQ in single-rail active mode. | Select TPS62400DRVR when adjustable outputs and sub-5µA IQ per active channel are prioritized over fixed-voltage simplicity and dual-rail simultaneous low-IQ operation. |
| RT8070ZSP | 2.7V–5.5V input; fixed 1.2V/1.8V outputs; 3MHz switching; 45µA quiescent current; 10-pin 2mm × 2mm QFN. | Higher quiescent current; no HyperLight Load™ mode-uses standard PFM/PWM hybrid control with slower light-load response. | Choose RT8070ZSP only if cost sensitivity outweighs efficiency requirements below 10mA, and 4MHz EMI suppression is not critical. |
Compared with TPS62400DRVR and RT8070ZSP, the MIC23250-G4YMT-TR uniquely combines fixed dual outputs, 4MHz operation for minimal passive size, and HyperLight Load™ architecture delivering 85% efficiency at 1mA-making it optimal for battery-critical portable devices where board space and light-load performance are non-negotiable.
Availability
MIC23250-G4YMT-TR is available at Aetrix Electronics and suitable for mobile handsets, portable navigation devices, and USB-powered peripherals requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC23250-G4YMT-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. was a U.S.-based semiconductor company specializing in power management, timing, and interface ICs before its acquisition by Microchip Technology in 2015. Known for innovation in high-frequency DC-DC conversion and low-power architectures.
The MIC23250 product line was engineered specifically for ultra-compact, battery-efficient portable electronics-emphasizing minimal external component count, sub-1mm solution height, and industry-leading light-load efficiency through HyperLight Load™ technology.
FAQ
What input voltage range does the MIC23250-G4YMT-TR support?
The MIC23250-G4YMT-TR operates from 2.7V to 5.5V, making it compatible with single-cell Li-ion batteries (2.7–4.2V), USB 5V sources, and regulated 3.3V intermediate rails. Absolute maximum rating is 6V on VIN and SW pins; exceeding this may damage the device.
Does the MIC23250-G4YMT-TR require external feedback resistors?
No. The MIC23250-G4YMT-TR is a fixed-output variant with 1.2V and 1.8V outputs, using internal feedback networks. It connects SNS1 and SNS2 directly to their respective output nodes-eliminating external resistors and associated accuracy drift or layout sensitivity.
How does HyperLight Load™ mode improve efficiency at light loads?
HyperLight Load™ mode uses pulse-frequency modulation (PFM) below ~70mA per channel, activating switching cycles only when needed to maintain regulation. This reduces gate drive and transition losses, enabling 85% efficiency at 1mA-far exceeding conventional PWM-only buck regulators.
What is the thermal performance of the MIC23250-G4YMT-TR in its 2mm × 2mm package?
The MIC23250-G4YMT-TR has a θJA of 70°C/W in the 10-pin Thin MLF® package. With proper PCB copper pour under the exposed thermal pad and 2oz inner layers, it sustains 400mA per channel continuously at +85°C ambient without derating-validated across –40°C to +125°C junction range.
Can the MIC23250-G4YMT-TR be used with inductors other than 1µH?
Yes. The MIC23250-G4YMT-TR supports inductors from 0.47µH to 4.7µH. A 0.47µH inductor improves transient response; 4.7µH lowers output ripple. Peak inductor current scales inversely with inductance and frequency-so 1µH remains the optimal balance for efficiency, size, and ripple in most portable applications.
MIC23250-G4YMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 10-UFDFN, 10-TMLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V, 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:
- 10-TMLF® (2x2)
MIC23250-G4YMT-TR FAQ
1.How can I place an order for MIC23250-G4YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23250-G4YMT-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 MIC23250-G4YMT-TR reliable?
The price and inventory of MIC23250-G4YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23250-G4YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC23250-G4YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23250-G4YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23250-G4YMT-TR?
MIC23250-G4YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23250-G4YMT-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 MIC23250-G4YMT-TR?
For technical support, including MIC23250-G4YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23250-G4YMT-TR requirements.
6.How does Aetrix verify that MIC23250-G4YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC23250-G4YMT-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 MIC23250-G4YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC23250-G4YMT-TR?
All MIC23250-G4YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC23250-G4YMT-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 MIC23250-G4YMT-TR part is unused and in its original packaging.
Return procedure for MIC23250-G4YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC23250-G4YMT-TR Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
