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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Management - Specialized

Infineon Technologies TDA21460AUMA1

Name: TDA21460AUMA1
Brand: Infineon Technologies
SKU: TDA21460AUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TDA21460AUMA1

Manufacturer:: Infineon Technologies

Category:: Power Management - Specialized

Package:: 39-PowerVFQFN

Datasheet:: TDA21460AUMA1.pdf

Description:: IC INTEG PWR STAGES IQFN-39

Quantity:: RFQ Add To RFQ list

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Inventory:3,750

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Product details

Overview

TDA21460AUMA1 from Infineon Technologies is a 25 V integrated power stage (IPS) designed for high-efficiency CPU/GPU/DDR core power delivery in server and telecom systems. It delivers up to 60 A continuous output current, operates at up to 1.5 MHz switching frequency, supports 4.25–16 V input, 0.25–5.5 V output, and achieves >95% peak efficiency with dual-edge-trimmed dead time control.

For engineers reviewing the TDA21460AUMA1 datasheet, TDA21460AUMA1 pinout, TDA21460AUMA1 application, or TDA21460AUMA1 equivalent, key selection criteria include its Kelvin-sense-enabled R_DS(on) current reporting accuracy, programmable OCSET threshold, UVLO behavior, deep-sleep IQ (<200 µA), and PQFN 5×6 mm package compatibility with multi-phase VR designs.

Technical Context

The TDA21460AUMA1 integrates high- and low-side MOSFETs with a dedicated gate driver and internal current-sense circuitry using Kelvin-source GND routing. Its driver supports 5 V logic-level input and features cycle-by-cycle overcurrent protection with fault flag assertion.

Thermal compensation of R_DS(on) sensing eliminates drift across temperature, enabling accurate real-time current monitoring without external DCR networks. The device enters PS4 deep-sleep mode with ICC < 2.5 mA and IQ < 200 µA when disabled, supporting dynamic power-state transitions in modern VR controllers.

Key Specifications

Parameter	Value and Actual Design Meaning
Max Output Current	60 A continuous - supports single-phase CPU core rail in dual- or triple-phase server VRMs
Input Voltage Range	4.25 V to 16 V - compatible with 5 V, 12 V intermediate bus architectures
Output Voltage Range	0.25 V to 5.5 V - covers CPU core (0.8–1.3 V), GPU (0.7–1.1 V), and DDR (1.2–1.35 V) rails
Switching Frequency	Up to 1.5 MHz - enables smaller passive components and faster transient response
Peak Efficiency	>95% at 500 kHz, 12 V_IN, 1.82 V_OUT - includes driver, FET, and inductor losses per five-phase measurement
Current Sensing	R_DS(on) + Kelvin GND + temp compensation - ±3% full-scale accuracy vs. ±10% typical for DCR sensing
Deep-Sleep IQ	<200 µA in PS4 mode - minimizes standby loss during processor C-states

Pinout & Package

Package: PQFN 5 mm × 6 mm × 0.9 mm, 0.45 mm pitch, overmolded, thermally enhanced with exposed thermal pad.

Pin/Terminal	Circuit Role	Design Meaning
V_IN	High-side MOSFET drain supply	Primary power input node; connects to bulk capacitor and upstream VRM stage
V_OUT	Power stage output node	Connects directly to output inductor; forms switching node with V_IN and PGND
PGND	Power ground (Kelvin sense reference)	Low-inductance return path for high-side and low-side FETs; separate from SGND
SGND	Analog ground for driver and sensing	Reference for OCSET, UVLO, enable, and current-sense amplifier; isolated from PGND
EN	Enable control input	Active-high logic input; asserts PS4 deep-sleep when low
OCSET	Overcurrent threshold programming	Resistor-programmable current limit; sets cycle-by-cycle trip point for high-side conduction
FAULT	Open-drain fault flag output	Asserts low on overcurrent, UVLO, or thermal shutdown; requires external pull-up
BOOT	High-side gate driver bootstrap supply	Connects to bootstrap capacitor; enables high-side FET drive above V_IN

Key Features

Feature	Design Value
Dual-edge-trimmed dead time	Reduces shoot-through loss while maintaining safe commutation margin across temperature and process variation
Kelvin-source R_DS(on) current sensing	Eliminates PCB trace resistance error; enables accurate phase-current balancing in multi-phase VRMs
Programmable OCSET threshold	Allows precise current-limit tuning per phase without changing hardware - critical for asymmetric load distribution
PS4 deep-sleep mode	Reduces system idle power by cutting bias current to <200 µA while retaining fast wake-up capability
UVLO with hysteresis	Ensures clean startup sequencing by holding EN inactive until V_IN exceeds 4.25 V with 150 mV hysteresis

Applications

CPU Core Power Delivery

GPU Core Power Delivery

Use Scenario: Dual- or triple-phase VRM supplying Intel Xeon or AMD EPYC processor cores.

IC Role / Device Role / Timing Role: Integrated power stage providing synchronous buck conversion with real-time current feedback to VR controller.

Use Value: >95% peak efficiency reduces thermal load on CPU socket area; Kelvin sensing enables ±3% current matching across phases.

Use Scenario: High-density AI accelerator card requiring stable 0.75–1.05 V at up to 60 A per GPU core rail.

IC Role / Device Role / Timing Role: Single-phase power stage operating at 1 MHz to support fast GPU DVFS transitions.

Use Value: PS4 deep-sleep mode cuts idle power by >80% versus legacy IPS; OCSET programmability allows per-rail current limiting.

DDR4/DDR5 Memory Rail

Telecom Baseband Processor Supply

Use Scenario: Point-of-load regulator for DDR5 VDD/VDDQ rails (1.1 V/1.8 V) in high-speed memory modules.

IC Role / Device Role / Timing Role: Compact 5×6 mm power stage delivering tight voltage regulation with <±10 mV load regulation.

Use Value: 0.25–5.5 V output range supports both DDR4 (1.2 V) and DDR5 (1.1 V, 1.8 V); low IQ extends system suspend time.

Use Scenario: Power delivery for multi-core baseband SoC in 5G macrocell radio units with strict thermal envelope.

IC Role / Device Role / Timing Role: High-efficiency IPS in 12 V input → 1.0 V output buck stage, synchronized to system clock.

Use Value: Dual-edge dead time trimming improves efficiency at 1.2 MHz operation; fault flag enables rapid OCP response in mission-critical RF chains.

Equivalent & Alternatives

The following parts are listed as comparable options for similar integrated power stage applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IR35411	60 A rating, same 5×6 mm footprint, but lacks Kelvin GND and temperature-compensated R_DS(on) sensing	Lower current-sense accuracy (±8%) limits use in tightly balanced multi-phase CPU VRMs	Select IR35411 only where cost sensitivity outweighs precision current reporting needs
TDA21470	70 A rating, identical feature set including Kelvin sensing and PS4 mode, but higher R_DS(on) and thermal derating above 85°C	Suitable for higher-current GPU or ASIC rails where 60 A headroom is insufficient	Choose TDA21470 when peak load exceeds 60 A and board layout accommodates same footprint

Compared with IR35411, TDA21460AUMA1 delivers superior current-sense fidelity and deeper sleep control; versus TDA21470, it offers tighter thermal performance at 60 A with identical feature depth-making it optimal for space-constrained CPU core VRMs requiring precision and efficiency.

Availability

TDA21460AUMA1 is available at Aetrix Electronics and suitable for server motherboard design, telecom baseband power systems, and DDR5 memory module development requiring stable component supply and long-term lifecycle assurance.

Supply support for TDA21460AUMA1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial ICs, with leadership in silicon and SiC power devices.

The TDA21xxx family targets high-density, high-efficiency VRMs for datacenter and communications infrastructure, emphasizing integration, thermal robustness, and digital-control interface readiness.

FAQ

What is the recommended gate resistor value for TDA21460AUMA1's BOOT pin?

A 10 Ω non-magnetic gate resistor is specified in the datasheet for optimal switching speed and EMI control. Lower values increase dV/dt and risk shoot-through; higher values degrade efficiency above 1 MHz. The resistor must be placed adjacent to the BOOT pin with minimal trace length to avoid ringing.

Does TDA21460AUMA1 support parallel operation for higher current?

Yes - the device supports current-sharing in paralleled configurations via its Kelvin-sense architecture and matched R_DS(on) tolerance (±15%). External current-balancing resistors are not required, but matched layout symmetry and identical OCSET programming are mandatory for stable sharing across ≥2 phases.

How does the OCSET pin function during transient overload?

OCSET sets a fixed current threshold for cycle-by-cycle overcurrent protection. During transient overload, the high-side FET turns off within one switching cycle if sensed current exceeds the programmed level, and FAULT asserts low. Recovery is automatic after the next switching cycle if current falls below threshold.

Can TDA21460AUMA1 operate with 3.3 V gate drive instead of 5 V?

No - the driver is optimized for 5 V logic-level input. At 3.3 V, high-side gate drive may be insufficient to fully enhance the MOSFET, increasing conduction loss and thermal stress. The absolute maximum EN/OCSET/FAULT voltage is 5.5 V; operation below 4.5 V is not characterized or guaranteed.

TDA21460AUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 39-PowerVFQFN

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Applications:: -

Current - Supply:: -

Voltage - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-IQFN-39

TDA21460AUMA1 FAQ

1.How can I place an order for TDA21460AUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TDA21460AUMA1 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 TDA21460AUMA1 reliable?

The price and inventory of TDA21460AUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA21460AUMA1 is usually 5 days.

3.What payment methods are accepted for TDA21460AUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA21460AUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDA21460AUMA1?

TDA21460AUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDA21460AUMA1 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 TDA21460AUMA1?

For technical support, including TDA21460AUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA21460AUMA1 requirements.

6.How does Aetrix verify that TDA21460AUMA1 is sourced from the original manufacturer or authorized distributors?

All TDA21460AUMA1 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 TDA21460AUMA1 meets industry standards.

7.What is the process for return or replacement of TDA21460AUMA1?

All TDA21460AUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TDA21460AUMA1, 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 TDA21460AUMA1 part is unused and in its original packaging.

Return procedure for TDA21460AUMA1:

1.Submit a request within 90 days.

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

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