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

Skyworks Solutions Inc. SKY87202-11-631LF

Name: SKY87202-11-631LF
Brand: Skyworks Solutions Inc.
SKU: SKY87202-11-631LF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SKY87202-11-631LF

Manufacturer:: Skyworks Solutions Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: -

Datasheet:: SKY87202-11-631LF.pdf

Description:: IC REG DC-DC CONVERTER 12QFN

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Inventory:1,599

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Product details

Overview

SKY87202-11-631LF from Skyworks Solutions is a 3.5 A, 1.2 MHz constant on-time synchronous step-down DC-DC converter with adjustable output voltage (0.6 V to 3.3 V), 2.7 V–6.0 V input range, and integrated 50 mΩ PMOS/40 mΩ NMOS power switches-used in portable devices for efficient core voltage regulation.

For engineers reviewing the SKY87202-11-631LF datasheet, SKY87202-11-631LF pinout, SKY87202-11-631LF application, or SKY87202-11-631LF equivalent, key selection factors include adjustable V_OUT range, QFN-12 (2 mm × 2 mm) package footprint, cycle-by-cycle over-current protection, power-good signaling, and soft-start timing.

Technical Context

The SKY87202-11-631LF implements constant on-time control architecture enabling fast transient response and stable operation with low-ESR ceramic output capacitors only-no external compensation required. Its internal PWM logic drives high-side and low-side MOSFETs with matched gate drive timing to minimize shoot-through risk.

Power sequencing is managed via dedicated EN (enable) and PG (power good) pins, while thermal shutdown and cycle-by-cycle current limiting provide fault protection without external circuitry. The FB/NC pin configures feedback for adjustable output mode.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.7 V to 6.0 V - supports single-cell Li-ion, dual-cell alkaline, or USB-powered systems without pre-regulation
Output Voltage Range	0.6 V to 3.3 V (adjustable via external resistor divider) - enables precise core voltage tuning for SoCs and FPGAs
Max Output Current	3.5 A continuous - sustains full load under worst-case thermal conditions in compact 2 mm × 2 mm QFN
Switching Frequency	1.2 MHz - allows use of small 1 µH inductors and 22 µF ceramic capacitors, reducing board area
Peak Efficiency	95% at mid-load - minimizes power loss and thermal rise in battery-operated portable devices
Internal MOSFET R_DS(on)	50 mΩ (HS), 40 mΩ (LS) - reduces conduction loss and eliminates need for external power switches
Light Load Efficiency	80% at 10 mA - extends battery runtime during standby/sleep modes without forced PWM

Pinout & Package

The SKY87202-11-631LF is housed in a 12-pin, 2 mm × 2 mm Quad Flat No-Lead (QFN) package, MSL1 rated, with exposed thermal pad (PGND-connected) for enhanced heat dissipation.

Pin/Terminal	Circuit Role	Design Meaning
PVIN	Power input for internal LDO and gate drivers	Bypassed separately from VIN to reduce noise coupling into control circuitry
VIN	Main power input (2.7–6.0 V)	Connected to input capacitor; supplies high-side and low-side MOSFETs
EN	Enable control input	Active-high logic input with internal pull-down; controls startup sequencing and standby mode
PG	Power-good open-drain output	Signals valid regulation (V_OUT within ±5%); used for system power sequencing
FB/NC	Feedback input / No-connect (fixed version)	In SKY87202-11-631LF, connects to resistor divider for adjustable V_OUT setting
OUT	Regulated output node	Connects directly to output capacitor and load; low-impedance path for high-frequency currents
LX	Switch node	Drives external inductor; requires tight layout to minimize EMI and switching losses
AGND	Analog ground reference	Separate ground for feedback and control circuitry to avoid noise injection into error amplifier
PGND	Power ground (high-current return)	High-current return path for MOSFETs and inductor; tied to thermal pad for thermal performance
NC (pins 2,11)	No-connect	Unbonded die pads; must be left floating or connected to PGND per layout guidelines
NC (pins 3,12)	No-connect	Unbonded die pads; no electrical function; avoid routing signals underneath

Key Features

Feature	Design Value
Constant on-time control	Enables stable loop response with zero external compensation components-reduces BOM count and layout sensitivity
Integrated power MOSFETs	Eliminates need for external high-side/low-side switches; simplifies design and improves efficiency over discrete solutions
Power-good (PG) output	Provides system-level power sequencing capability without external supervisor ICs or discrete comparators
Soft-start function	Internally controlled ramp limits inrush current during startup-prevents input rail collapse and output overshoot
Cycle-by-cycle over-current protection	Detects and limits peak switch current every cycle-avoids thermal runaway during short-circuit or overload events

Applications

Portable Computing	Wireless Access Points
Use Scenario: Powering ARM-based application processors in tablets and handhelds with dynamic voltage scaling. IC Role / Device Role / Timing Role: Primary core voltage regulator delivering 0.8 V–1.2 V at up to 3.5 A with fast load transient response. Use Value: Constant on-time control ensures <5% output deviation during 1 A/µs load steps-maintaining processor stability during burst-mode operation.	Use Scenario: Supplying 3.3 V I/O rails and 1.2 V CPU cores in 802.11ac access point SoCs. IC Role / Device Role / Timing Role: Dual-rail DC-DC converter supporting independent enable and power-good sequencing for multi-domain SoC power-up. Use Value: EN and PG pins allow coordinated start-up with RF front-end and baseband ICs-eliminating boot failures due to improper power sequencing.
Set-Top Boxes	Industrial Human-Machine Interfaces
Use Scenario: Regulating 1.8 V memory supply and 1.0 V GPU core voltage in HDMI-enabled STBs. IC Role / Device Role / Timing Role: High-efficiency synchronous buck converter operating from 5 V USB-C or wall adapter input. Use Value: 95% peak efficiency and 80% light-load efficiency extend standby time and reduce heatsink requirements in enclosed plastic enclosures.	Use Scenario: Providing clean, sequenced 1.2 V and adjustable 2.5 V rails for FPGA configuration and I/O banks in panel-mounted HMIs. IC Role / Device Role / Timing Role: Adjustable-output DC-DC converter with thermal shutdown and over-current protection for unattended industrial environments. Use Value: Over-temperature protection triggers at 150 °C and holds output off until safe-preventing field failures in high-ambient-temperature cabinets.

Portable Computing

Wireless Access Points

Use Scenario: Powering ARM-based application processors in tablets and handhelds with dynamic voltage scaling.

IC Role / Device Role / Timing Role: Primary core voltage regulator delivering 0.8 V–1.2 V at up to 3.5 A with fast load transient response.

Use Value: Constant on-time control ensures <5% output deviation during 1 A/µs load steps-maintaining processor stability during burst-mode operation.

Use Scenario: Supplying 3.3 V I/O rails and 1.2 V CPU cores in 802.11ac access point SoCs.

IC Role / Device Role / Timing Role: Dual-rail DC-DC converter supporting independent enable and power-good sequencing for multi-domain SoC power-up.

Use Value: EN and PG pins allow coordinated start-up with RF front-end and baseband ICs-eliminating boot failures due to improper power sequencing.

Set-Top Boxes

Industrial Human-Machine Interfaces

Use Scenario: Regulating 1.8 V memory supply and 1.0 V GPU core voltage in HDMI-enabled STBs.

IC Role / Device Role / Timing Role: High-efficiency synchronous buck converter operating from 5 V USB-C or wall adapter input.

Use Value: 95% peak efficiency and 80% light-load efficiency extend standby time and reduce heatsink requirements in enclosed plastic enclosures.

Use Scenario: Providing clean, sequenced 1.2 V and adjustable 2.5 V rails for FPGA configuration and I/O banks in panel-mounted HMIs.

IC Role / Device Role / Timing Role: Adjustable-output DC-DC converter with thermal shutdown and over-current protection for unattended industrial environments.

Use Value: Over-temperature protection triggers at 150 °C and holds output off until safe-preventing field failures in high-ambient-temperature cabinets.

Equivalent & Alternatives

The following parts are listed as comparable options for similar step-down DC-DC converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS62864DRLR	3.6 A, 2.4 MHz, fixed 1.2 V output only; no adjustable version in same package	Requires external resistor network for voltage adjustment; lacks dedicated PG pin	Preferred when higher frequency and smaller inductor size are prioritized over output flexibility
RTQ2132BGQW	3.5 A, 1.5 MHz, adjustable 0.6–3.3 V, but uses 16-pin WQFN (3 mm × 3 mm)	Larger footprint and different pinout; includes spread-spectrum modulation for EMI reduction	Chosen when EMI compliance is critical and PCB area permits larger package

Compared with TPS62864DRLR and RTQ2132BGQW, the SKY87202-11-631LF uniquely combines adjustable output, dedicated PG signaling, and minimal 2 mm × 2 mm footprint-making it optimal for space-constrained portable designs requiring flexible rail generation and robust sequencing.

Availability

SKY87202-11-631LF is available at Aetrix Electronics and suitable for portable computing, wireless infrastructure, and set-top box applications requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for SKY87202-11-631LF 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

Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions for mobile, infrastructure, automotive, and IoT markets.

The SKY87202 product line delivers highly integrated, high-efficiency DC-DC converters optimized for battery-powered and space-constrained applications where thermal performance, small footprint, and reliable power sequencing are essential.

FAQ

What is the output voltage configuration of the SKY87202-11-631LF?

The SKY87202-11-631LF is the adjustable-output variant of the SKY87202 family, supporting 0.6 V to 3.3 V via an external resistor divider connected to the FB/NC pin. Unlike the fixed 1.2 V SKY87202-12-631LF, this part requires two external resistors to set V_OUT, enabling design flexibility across multiple SoC core voltages.

Does the SKY87202-11-631LF require external compensation components?

No, the SKY87202-11-631LF uses constant on-time control architecture that achieves stable operation without external compensation networks. Its internal loop is optimized for use with low-ESR ceramic output capacitors only-reducing bill-of-materials count and layout complexity compared to voltage-mode or current-mode controllers.

How does the SKY87202-11-631LF handle over-current conditions?

The SKY87202-11-631LF implements cycle-by-cycle over-current protection that monitors high-side MOSFET current on every switching cycle. When exceeded, the high-side switch is immediately disabled for that cycle-limiting peak inductor current and preventing thermal damage during sustained overload or short-circuit events.

What is the thermal shutdown threshold for the SKY87202-11-631LF?

The SKY87202-11-631LF activates thermal shutdown at approximately 150 °C junction temperature. Once triggered, the device halts switching and holds output disabled until the die cools below the hysteresis threshold (~20 °C below trip point), ensuring safe recovery without manual reset.

Can the SKY87202-11-631LF be used with ceramic output capacitors only?

Yes, the SKY87202-11-631LF is specifically designed to operate stably with low-ESR ceramic output capacitors-no electrolytic or tantalum capacitors required. The control loop and internal compensation are optimized for typical 22 µF X5R/X7R ceramics, simplifying filtering and improving reliability in high-vibration environments.

SKY87202-11-631LF Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: *

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Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

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SKY87202-11-631LF FAQ

1.How can I place an order for SKY87202-11-631LF through Aetrix?

Please submit a Request for Quotation (RFQ) for SKY87202-11-631LF 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 SKY87202-11-631LF reliable?

The price and inventory of SKY87202-11-631LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SKY87202-11-631LF is usually 5 days.

3.What payment methods are accepted for SKY87202-11-631LF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SKY87202-11-631LF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SKY87202-11-631LF?

SKY87202-11-631LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SKY87202-11-631LF 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 SKY87202-11-631LF?

For technical support, including SKY87202-11-631LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SKY87202-11-631LF requirements.

6.How does Aetrix verify that SKY87202-11-631LF is sourced from the original manufacturer or authorized distributors?

All SKY87202-11-631LF 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 SKY87202-11-631LF meets industry standards.

7.What is the process for return or replacement of SKY87202-11-631LF?

All SKY87202-11-631LF units undergo pre-shipment inspection (PSI). If there is an issue with SKY87202-11-631LF, 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 SKY87202-11-631LF part is unused and in its original packaging.

Return procedure for SKY87202-11-631LF:

1.Submit a request within 90 days.

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

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