My Inquiry
My Account
Microchip Technology MIC23450-AAAYML-T5
- Part No.:
- MIC23450-AAAYML-T5
- Manufacturer:
- Microchip Technology
- Package:
- 32-VFQFN Exposed Pad, 32-MLF®
- Datasheet:
-
MIC23450-AAAYML-T5.pdf
- Description:
- IC REG BUCK ADJ 2A TRPL 32MLF
- Quantity:
- Payment:
- Shipping:
Inventory:2,558
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC23450-AAAYML-T5 from Microchip Technology is a triple-channel, 2A synchronous buck regulator IC with HyperLight Load® mode, operating from 2.7V–5.5V input and delivering adjustable outputs down to 1V. It integrates fully realized PMOS/NMOS power stages, achieves 93% peak efficiency at full load, maintains 81% efficiency at 1 mA per channel, and delivers ultra-fast transient response with <30 mVPP ripple in light-load mode - ideal for powering FPGA core rails and SSD controller domains.
For engineers reviewing the MIC23450-AAAYML-T5 datasheet, MIC23450-AAAYML-T5 pinout, MIC23450-AAAYML-T5 application, or MIC23450-AAAYML-T5 equivalent, this page provides verified functional identity, validated 32-pin QFN package mapping, confirmed three independent power-good indicators, real-world efficiency vs. load curves, and cross-referenced alternatives for multi-rail POL designs requiring thermal robustness up to +125°C junction temperature.
Technical Context
The MIC23450-AAAYML-T5 implements a proprietary HyperLight Load® architecture combining minimum-on-time pulse-frequency modulation (PFM) at light loads and fixed 3 MHz PWM in continuous conduction mode (CCM), enabling seamless transition between high-efficiency light-load operation and stable high-current regulation. Each channel features independent enable, feedback, sense, and open-drain power-good pins with internal soft-start and thermal shutdown.
Its control loop uses a 0.62 V internal reference with external resistor-divider programming (1V–3.3V output range), supports inductors as small as 0.47 µH, and relies on separate AGND/PGND routing to isolate analog biasing from high-di/dt power paths - critical for maintaining low noise and tight load regulation across all three outputs simultaneously.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports single 3.3V or 5V rail input without pre-regulation; absolute max 6V avoids need for external overvoltage clamping. |
| Output Current (per channel) | Up to 2A continuous - rated across –40°C to +125°C junction temperature with thermal derating per ambient conditions. |
| Switching Frequency | 3 MHz nominal in CCM - enables use of sub-1 µH inductors and compact ceramic capacitors while minimizing EMI in dense PCB layouts. |
| Efficiency (Peak / Light Load) | 93% at full load; 81% at 1 mA - HyperLight Load® mode eliminates switching losses at microamp loads, extending battery runtime in always-on subsystems. |
| Output Ripple (HLL / PWM) | 30 mVPP in HyperLight Load®; 5 mV in full PWM - achieved with only 2.2 µF output capacitance, reducing BOM count and board area. |
| Quiescent Current | 23 µA per channel - enables >10-year shelf life in energy-harvesting or backup-power applications with minimal standby drain. |
| Power Good Threshold | 90% of nominal output voltage ±7% - ensures reliable sequencing and system-level fault detection without external comparators. |
| Junction Temperature Range | –40°C to +125°C - qualified for industrial and automotive under-hood environments where sustained high-temperature operation is required. |
Pinout & Package
32-pin 5 mm × 5 mm QFN package with exposed thermal pad (ePAD), RoHS-compliant, wettable flank capable. Pin 1 marked by top-side dot; ePAD must be soldered to PGND for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW1, SW2, SW3 (Pins 26, 23, 21) | Power switch node | Direct connection to inductor high-side; carries full switching current and high di/dt - requires short, low-inductance routing away from sensitive analog traces. |
| EN1, EN2, EN3 (Pins 30, 3, 8) | Independent enable input | Logic-high active (0.8V threshold); allows staggered power-up sequencing; floating state prohibited - requires pull-down or controlled logic drive. |
| SNS1, SNS2, SNS3 (Pins 31, 4, 9) | Output voltage sense | Kelvin connection point for feedback loop; must tie directly to output capacitor anode to reject PCB IR drop and ensure regulation accuracy. |
| FB1, FB2, FB3 (Pins 32, 5, 10) | Feedback reference input | Accepts 0.62 V internal reference; sets output via resistor divider (e.g., 301 kΩ/158 kΩ for 1.8V); tolerance impacts final VOUT accuracy (±2.5%). |
| PG1, PG2, PG3 (Pins 1, 6, 12) | Open-drain power-good indicator | Asserts high when output reaches ≥90% VNOM; requires external pull-up (≥5 kΩ) to respective VOUT for proper logic level and sequencing. |
| AGND1, AGND2, AGND3 (Pins 2, 7, 11) | Analog ground reference | Low-noise return for control circuitry; must be isolated from PGND except at single-point connection near ePAD to prevent noise coupling. |
| PVIN1, PVIN2, PVIN3 (Pins 27, 29, 14) | Power input for MOSFET stage | Supplies high-current path for internal switches; requires local 2.2 µF+ ceramic bypass to PGND to suppress switching transients. |
| AVIN1, AVIN2, AVIN3 (Pins 28, 15, 13) | Analog supply input | Feeds bias circuitry; requires RC filter (50 Ω + 100 nF to AGND) to reject PVIN noise and stabilize reference accuracy. |
| PGND1, PGND2, PGND3 (Pins 24, 22, 18) | Power ground return | High-current return for each channel's switching loop; must be routed with minimal area and connected to ePAD for thermal dissipation. |
| ePAD (Bottom) | Exposed thermal pad | Primary thermal path to PCB; must be fully soldered to solid PGND plane with ≥6 thermal vias for ≤30°C/W θJA performance. |
Key Features
| Feature | Design Value |
|---|---|
| Triple independent 2A buck regulators | Enables single-package power delivery for multi-voltage SoC/FPGA systems (e.g., core, I/O, auxiliary rails), eliminating three discrete converters and associated layout complexity. |
| HyperLight Load® mode | Delivers 81% efficiency at 1 mA per channel and ultra-fast transient response (<10 µs recovery) - critical for burst-mode processors and event-driven sensor nodes. |
| Three dedicated power-good outputs | Supports hardware-based power sequencing without external supervisors; each PG asserts independently, enabling fault-isolation and safe startup/shutdown coordination. |
| Fully integrated MOSFETs | Eliminates external high-side PMOS and low-side NMOS; reduces solution size to <1 mm height and removes gate-drive design burden and layout sensitivity. |
| 32-pin 5 mm × 5 mm QFN | Provides 3×2A capability in footprint smaller than dual 2A regulators; thermal pad and optimized pinout support high-density, thermally constrained embedded modules. |
| –40°C to +125°C operation | Qualified for extended temperature industrial and networking equipment; thermal shutdown at 160°C with 20°C hysteresis prevents latch-up during overload or airflow loss. |
Applications
| Solid State Drive (SSD) Power | FPGA Core & I/O Rail Supply |
|---|---|
Use Scenario: Powers NAND flash controller, DRAM cache, and PCIe interface in M.2 and U.2 SSDs with strict height and thermal constraints. IC Role / Device Role / Timing Role: Triple-output buck regulator supplying 1.2V core, 1.8V I/O, and 3.3V interface rails with independent sequencing and monitoring. Use Value: 30 mVPP ripple in HLL mode prevents data corruption during low-activity sleep states; 93% efficiency at 2A reduces thermal load in sealed enclosures. |
Use Scenario: Supplies configurable logic, transceivers, and configuration memory in Xilinx Artix/Kintex or Intel Cyclone/Arria FPGAs. IC Role / Device Role / Timing Role: Delivers tightly regulated 0.85V–1.2V core, 1.8V/2.5V I/O, and 1.2V auxiliary rails with independent enable and PG signaling. Use Value: Ultra-fast transient response (<10 µs) maintains voltage within ±3% during logic reconfiguration bursts; 3 MHz switching avoids interference with high-speed SerDes lanes. |
| Security/Surveillance Camera SoM | High-Performance Server DIMM Power |
Use Scenario: Powers image signal processor (ISP), MIPI CSI-2 interface, and DDR3/DDR4 memory in edge AI camera modules. IC Role / Device Role / Timing Role: Generates 1.1V ISP core, 1.8V MIPI PHY, and 1.2V DDR termination voltages with coordinated power-up timing. Use Value: Independent EN/PG pins allow firmware-controlled rail activation; 81% efficiency at 1 mA extends battery life in wireless PTZ cameras. |
Use Scenario: Provides dynamic VDDQ and VTT termination for DDR4/DDR5 RDIMMs and LRDIMMs in rack-mounted servers. IC Role / Device Role / Timing Role: Regulates 1.2V VDDQ and 0.6V VTT with precise load-step response and low-noise output for signal integrity. Use Value: 5 mV ripple in full PWM mode meets JEDEC DDR4 AC timing specs; thermal rating up to +125°C supports operation near CPU heat sinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-output buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS652170RSLR | Single 3A + dual 1.5A outputs; 2.7–5.5V input; no integrated PG; 2.2 MHz switching; 90% peak efficiency. | Lacks independent PG per rail; lower per-channel current; requires external sequencing logic for multi-rail coordination. | Select when cost-sensitive designs prioritize total BOM count over per-rail monitoring and sequencing autonomy. |
| ISL91211AIRZ-T7A | Triple 3A outputs; 2.5–5.5V input; 3 MHz switching; 92% peak efficiency; integrated telemetry but no PG pins. | Higher per-channel current but no dedicated power-good outputs; telemetry requires I²C host interaction instead of hardware assertion. | Select when telemetry-enabled adaptive voltage scaling is required and sequenced PG signaling is handled externally. |
Compared with TPS652170RSLR and ISL91211AIRZ-T7A, the MIC23450-AAAYML-T5 uniquely combines independent 2A channels, per-rail open-drain PG outputs, and HyperLight Load® efficiency below 1 mA - making it optimal for space-constrained, thermally demanding, and autonomously sequenced multi-rail systems where hardware-level fault detection is mandatory.
Availability
MIC23450-AAAYML-T5 is available at Aetrix Electronics and suitable for Solid State Drives (SSD), FPGA power management, and security/surveillance camera SoMs requiring stable component supply, long-term lifecycle assurance, and guaranteed thermal performance up to +125°C junction temperature.
Supply support for MIC23450-AAAYML-T5 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 microcontrollers, analog devices, and power management ICs, with broad expertise in mixed-signal design and embedded control solutions.
The MIC23450-AAAYML-T5 belongs to Microchip's HyperLight Load® family of high-frequency, multi-output DC-DC regulators engineered specifically for low-profile, high-efficiency point-of-load applications in storage, compute, and imaging systems.
FAQ
What is the maximum output voltage supported by MIC23450-AAAYML-T5?
The MIC23450-AAAYML-T5 supports an adjustable output voltage range from 1.0V to 3.3V per channel, set using an external resistor divider connected to the FB pin and referenced to its internal 0.62 V precision bandgap. This range is confirmed in the Electrical Characteristics table (DS20006479A-page 3) and applies across the full –40°C to +125°C junction temperature range. Output voltages outside this range are not supported or guaranteed.
Does MIC23450-AAAYML-T5 require external MOSFETs?
No, the MIC23450-AAAYML-T5 integrates fully realized high-side PMOS and low-side NMOS power switches for all three channels - no external MOSFETs are required. The datasheet explicitly states "Fully Integrated MOSFET Switches" in the Features section and confirms RSW values (0.2 Ω typical) in the Electrical Characteristics table. This integration reduces solution size, simplifies layout, and eliminates gate-drive design effort.
How does the HyperLight Load® mode improve efficiency at light loads?
HyperLight Load® mode uses pulse-frequency modulation (PFM) with minimum-on-time control to reduce switching activity at light loads. The MIC23450-AAAYML-T5 achieves 81% efficiency at 1 mA per channel - significantly higher than conventional PWM regulators - by only switching when necessary to maintain regulation. This behavior is validated in Figure 2-1 and Figure 2-2 of the datasheet, showing efficiency curves across load currents from 1 mA to 2 A.
What is the recommended minimum output capacitance for MIC23450-AAAYML-T5?
The MIC23450-AAAYML-T5 is designed to operate stably with a minimum 2.2 µF ceramic output capacitor per channel, as specified in Section 5.2 of the datasheet. Using ≥4.7 µF improves transient response and further reduces output ripple, but 2.2 µF is sufficient for basic regulation and meets the 30 mVPP ripple specification in HyperLight Load® mode. X5R or X7R dielectrics are required; Y5V/Z5U are not recommended.
Can MIC23450-AAAYML-T5 be used in automotive applications?
The MIC23450-AAAYML-T5 is qualified for operation from –40°C to +125°C junction temperature and features thermal shutdown at 160°C with 20°C hysteresis - meeting key requirements for under-hood and infotainment applications. However, it is not AEC-Q200 qualified or automotive-grade screened. For production automotive use, consult Microchip's official automotive product portfolio; MIC23450-AAAYML-T5 is intended for industrial and commercial systems with equivalent thermal demands.
MIC23450-AAAYML-T5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 32-VFQFN Exposed Pad, 32-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:
- 3
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 3.3V
- Current - Output:
- 2A
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-MLF® (5x5)
MIC23450-AAAYML-T5 FAQ
1.How can I place an order for MIC23450-AAAYML-T5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23450-AAAYML-T5 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 MIC23450-AAAYML-T5 reliable?
The price and inventory of MIC23450-AAAYML-T5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23450-AAAYML-T5 is usually 5 days.
3.What payment methods are accepted for MIC23450-AAAYML-T5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23450-AAAYML-T5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23450-AAAYML-T5?
MIC23450-AAAYML-T5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23450-AAAYML-T5 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 MIC23450-AAAYML-T5?
For technical support, including MIC23450-AAAYML-T5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23450-AAAYML-T5 requirements.
6.How does Aetrix verify that MIC23450-AAAYML-T5 is sourced from the original manufacturer or authorized distributors?
All MIC23450-AAAYML-T5 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 MIC23450-AAAYML-T5 meets industry standards.
7.What is the process for return or replacement of MIC23450-AAAYML-T5?
All MIC23450-AAAYML-T5 units undergo pre-shipment inspection (PSI). If there is an issue with MIC23450-AAAYML-T5, 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 MIC23450-AAAYML-T5 part is unused and in its original packaging.
Return procedure for MIC23450-AAAYML-T5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC23450-AAAYML-T5 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…
