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

Infineon Technologies TDA38807XUMA1

Name: TDA38807XUMA1
Brand: Infineon Technologies
SKU: TDA38807XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TDA38807XUMA1

Manufacturer:: Infineon Technologies

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 14-UFQFN

Datasheet:: TDA38807XUMA1.pdf

Description:: HIGHLY EFFICIENT DC-DC BUCK REGU

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TDA38807XUMA1 from Infineon Technologies is a 6 A synchronous buck regulator with Constant On-Time (COT) control, operating from 2.7 V to 16 V input and delivering precision 0.9 V ±0.5% output voltage. It integrates high- and low-side MOSFETs in a QFN-14 package, supports selectable 600 kHz/1.1 MHz/2 MHz switching, and enables voltage tracking via SS/REF pin for multi-rail sequencing in server point-of-load systems.

For engineers reviewing the TDA38807XUMA1 datasheet, TDA38807XUMA1 pinout, TDA38807XUMA1 application, or TDA38807XUMA1 equivalent, key selection criteria include its thermally compensated current limit, pre-bias start-up capability, no-external-compensation design, and programmable soft-start down to 1.5 ms - all critical for stable, fast-transient power delivery in telecom and storage subsystems.

Technical Context

The TDA38807XUMA1 implements a fast Constant On-Time (COT) control architecture that eliminates loop compensation components while achieving sub-10 µs load transient response. Its adaptive on-time generator dynamically adjusts based on input voltage and output voltage feedback to maintain pseudo-constant frequency across line and load variations.

It integrates an internal 3 V LDO for gate driver bias (VCC), supports dual operation modes - Forced Continuous Conduction Mode (FCCM) for ripple-sensitive loads and Diode Emulation Mode (DEM) for light-load efficiency - and features valley-current sensing with negative over-current protection (NOCP) and thermal compensation for accurate current limiting across temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current	6 A continuous; supports full-rated load without external heatsink in typical 2-layer PCB layout with 2 mm × 3 mm QFN footprint.
Input Voltage Range	2.7 V–16 V with external VCC bias; 4 V–16 V with internal bias - enables compatibility with 3.3 V, 5 V, and 12 V intermediate bus architectures.
Reference Voltage	0.9 V ±0.5% (max); sets output accuracy baseline for FB resistor divider - enables ±1% total output regulation including feedback network tolerance.
Switching Frequency	Selectable: 600 kHz / 1.1 MHz / 2 MHz via MODE pin; higher frequencies allow smaller inductors and output capacitors in space-constrained designs.
Soft-Start Time	Programmable ≥1.5 ms via SS/REF capacitor; prevents inrush current during power-up and supports controlled voltage ramping in tracked multi-rail systems.
Thermal Shutdown	Latch-off at T_j ≥ 150 °C; combined with thermally compensated OCP ensures safe operation under sustained overload or poor airflow conditions.
Protection Features	Latch-off OCP, UVP, OVP, and thermal shutdown; open-drain PGOOD with 1 ms delay confirms regulation before system enable.

Pinout & Package

Package: QFN-14 (2 mm × 3 mm, 0.5 mm pitch), wettable flank, lead-free, halogen-free, RoHS-compliant. Exposed thermal pad (PGND-connected) required for thermal performance and EMI reduction.

Pin/Terminal	Circuit Role	Design Meaning
1, 14 PGND	Power Ground	High-current return path for power stage; must be connected directly to exposed thermal pad and low-impedance ground plane.
2, 11 SW	Switch Node	Drives external inductor; swings between VIN and ~−0.3 V; requires short, wide trace to minimize ringing and EMI.
3 VIN	Main Input Supply	Primary power input for integrated FETs; decoupled with ≥10 µF ceramic capacitor placed adjacent to VIN–PGND.
4 CS	Current Sense Input	Connects to AGND via sense resistor; sets OCP threshold (e.g., 10 mΩ = 6 A trip); includes internal thermal compensation.
5 EN	Enable Control	Analog input with internal 2.8 V threshold; pull-up to VIN enables automatic start-up; supports voltage monitoring for brown-out detection.
6 FB	Feedback Input	Resistor divider tap point for output voltage regulation; feedforward capacitor (CFF) improves transient response.
7 AGND	Analog Ground	Signal reference for control circuitry; must connect to PGND at single-point star ground to avoid noise coupling.
8 SS/REF	Soft-Start / Tracking Reference	Capacitor sets soft-start time; external voltage applied here enables precise output voltage tracking of another rail.
9 PGOOD	Power Good Output	Open-drain signal pulled high when FB ≥ 92.5% of 0.9 V; 1 ms delay ensures stable regulation before assertion.
10 BST	Bootstrap Supply	Connected to SW via 0.1 µF ceramic capacitor; supplies gate drive voltage for high-side MOSFET.
12 MODE	Operation Mode Select	Resistor-programmed pin selecting FCCM/DEM and switching frequency (600 kHz/1.1 MHz/2 MHz).
13 VCC	Internal LDO Output	3 V regulated supply for logic and drivers; requires ≥2.2 µF X7R/X5R ceramic capacitor placed near pin.

Key Features

Feature	Design Value
No External Compensation Required	COT control architecture eliminates need for type-II/type-III compensation networks - reduces BOM count and layout sensitivity.
Pre-Bias Start-Up Support	Allows safe startup into pre-charged output capacitors without reverse current flow - essential for hot-swap and redundant power systems.
Voltage Tracking Capability	SS/REF pin accepts external reference (e.g., from another regulator) to synchronize ramp-up timing and prevent back-feeding in multi-rail FPGA or ASIC supplies.
Thermally Compensated Current Limit	OCP threshold scales inversely with junction temperature - maintains consistent current protection across −40 °C to +125 °C operating range.
Enhanced Light-Load Efficiency	Diode Emulation Mode (DEM) disables low-side FET during discontinuous conduction, eliminating reverse recovery losses and improving efficiency below ~10% load.

Applications

Server CPU Core Supply

Storage Controller Power

Use Scenario: Delivering tightly regulated 0.9 V core voltage to dual-socket Xeon processors with dynamic load steps up to 4 A/µs.

IC Role / Device Role / Timing Role: Primary point-of-load regulator implementing COT control for <10 µs transient response and seamless voltage tracking with VRM sequencers.

Use Value: Eliminates external compensation components and supports programmable soft-start to meet Intel VR14/VR15 sequencing requirements.

Use Scenario: Powering NVMe SSD controllers requiring 1.8 V or 3.3 V rails with strict ripple (<20 mV_pp) and fast wake-from-sleep response.

IC Role / Device Role / Timing Role: Secondary POL regulator enabling DEM mode for >90% efficiency at 50 mA standby load and FCCM for full-speed burst writes.

Use Value: Reduces standby power by 35% vs. forced PWM, while maintaining <50 µs recovery from deep sleep states.

Telecom Baseband Processor

Datacom Switch ASIC Core

Use Scenario: Supplying 1.0 V core rail to 5G baseband SoCs with simultaneous RF and digital processing loads causing rapid 0–5 A transients.

IC Role / Device Role / Timing Role: High-bandwidth buck regulator using 2 MHz switching and feedforward capacitor to suppress load-induced output deviation.

Use Value: Achieves ±15 mV output deviation under 4 A/µs step load - meets 3GPP TS 38.101-1 voltage stability requirements.

Use Scenario: Generating 0.85 V core voltage for 100 GbE switch ASICs with multi-phase coordination and rail-to-rail sequencing.

IC Role / Device Role / Timing Role: Single-phase POL regulator supporting voltage tracking via SS/REF to align with companion 1.2 V I/O rail during power-up/down.

Use Value: Enables deterministic power sequencing without external timers or supervisors - reduces BOM and board area by 30%.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MP2315DJ-LF-Z (Monolithic Power)	4 A rated, fixed 500 kHz frequency, no voltage tracking or pre-bias start-up; requires external compensation.	Suitable for cost-sensitive, lower-current embedded applications where sequencing and transient speed are non-critical.	Select if output current ≤4 A and design prioritizes lowest BOM cost over advanced sequencing or transient performance.
TPS546B24RVFT (Texas Instruments)	6 A, PMBus-enabled, 400 kHz–2.2 MHz adjustable frequency, supports AVS and telemetry; larger 4 mm × 4 mm QFN-24 package.	Targeted at programmable power systems requiring real-time margining, fault logging, and digital configuration.	Select if system-level digital control, telemetry, or adaptive voltage scaling (AVS) is required - not a drop-in replacement.

Compared with MP2315DJ-LF-Z and TPS546B24RVFT, the TDA38807XUMA1 uniquely balances analog simplicity (no compensation), high transient performance (COT), and analog sequencing features (tracking, pre-bias) in a minimal 2 mm × 3 mm footprint - ideal for space-constrained industrial and communications POL designs where digital overhead is unnecessary.

Availability

TDA38807XUMA1 is available at Aetrix Electronics and suitable for server motherboard development, NVMe storage controller power delivery, and 5G telecom baseband processor supplies requiring stable component supply, long-term lifecycle support, and JEDEC-qualified industrial reliability.

Supply support for TDA38807XUMA1 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 microcontrollers, and industrial sensors, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

The TDA38807 belongs to Infineon's TDA series of highly integrated DC-DC buck regulators, designed specifically for high-efficiency, low-footprint point-of-load conversion in datacenter, telecom, and industrial computing infrastructure.

FAQ

What is the minimum recommended output capacitance for stable operation?

The TDA38807XUMA1 is stable with ceramic output capacitors ≥22 µF total (e.g., three 10 µF X5R 0603s in parallel). Lower values may cause instability in DEM mode; use ≥47 µF for FCCM operation with 2 MHz switching to maintain <10 mV_pp ripple under full load.

Can the TDA38807XUMA1 operate without an external bootstrap capacitor?

No. The BST pin requires a 0.1 µF X7R ceramic capacitor connected between BST and SW to generate the gate drive voltage for the high-side MOSFET. Omitting this capacitor prevents high-side FET turn-on and causes immediate regulator failure or no output voltage.

How does the MODE pin configure switching frequency and operation mode?

The MODE pin uses resistor dividers to set three discrete voltage thresholds: 0.4 V selects 600 kHz + DEM, 1.25 V selects 1.1 MHz + FCCM, and 2.0 V selects 2 MHz + FCCM. Resistor tolerances must be ≤1% to ensure reliable mode selection across temperature and process variation.

Is the SS/REF pin required for basic operation?

No. SS/REF is optional: leaving it open defaults to internal 0.9 V reference and minimum 1.5 ms soft-start. However, connecting an external reference (e.g., from another regulator) enables precise voltage tracking - critical for FPGA core/I/O rail sequencing and preventing latch-up during power-up.

TDA38807XUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 14-UFQFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 2.7V

Voltage - Input (Max):: 16V

Voltage - Output (Min/Fixed):: 0.9V

Voltage - Output (Max):: 5.5V

Current - Output:: 6A

Frequency - Switching:: 600kHz, 1.1MHz, 2MHz

Synchronous Rectifier:: Yes

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TSNP-14-6

TDA38807XUMA1 FAQ

1.How can I place an order for TDA38807XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TDA38807XUMA1 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 TDA38807XUMA1 reliable?

The price and inventory of TDA38807XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA38807XUMA1 is usually 5 days.

3.What payment methods are accepted for TDA38807XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA38807XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDA38807XUMA1?

TDA38807XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDA38807XUMA1 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 TDA38807XUMA1?

For technical support, including TDA38807XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA38807XUMA1 requirements.

6.How does Aetrix verify that TDA38807XUMA1 is sourced from the original manufacturer or authorized distributors?

All TDA38807XUMA1 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 TDA38807XUMA1 meets industry standards.

7.What is the process for return or replacement of TDA38807XUMA1?

All TDA38807XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TDA38807XUMA1, 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 TDA38807XUMA1 part is unused and in its original packaging.

Return procedure for TDA38807XUMA1:

1.Submit a request within 90 days.

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

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