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

STMicroelectronics L6926013TR

Name: L6926013TR
Brand: STMicroelectronics
SKU: L6926013TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: L6926013TR

Manufacturer:: STMicroelectronics

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: L6926013TR.pdf

Description:: IC REG BUCK ADJ 800MA 8MSOP

Quantity:: RFQ Add To RFQ list

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Inventory:4,370

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Product details

Overview

L6926013TR from STMicroelectronics is a monolithic synchronous step-down DC-DC regulator in TSSOP8 package, designed for single-cell Li-ion battery-powered systems. It delivers up to 800 mA output current with adjustable voltage down to 0.6 V, 95% peak efficiency, and 1 µA shutdown current - enabling long runtime in portable instruments and handheld terminals.

For engineers reviewing the L6926013TR datasheet, L6926013TR pinout, L6926013TR application, or L6926013TR equivalent, key selection criteria include its 600 kHz fixed-frequency current-mode control, external synchronization capability (500 kHz–1.4 MHz), low-noise/low-consumption mode selection via SYNC pin, and integrated Power Good signal with ±1% output accuracy.

Technical Context

The L6926013TR employs a slope-compensated current-mode PWM architecture with internal high- and low-side MOSFETs (R_DS(on) = 240 mΩ / 215 mΩ typ.), enabling stable operation up to 100% duty cycle for ultra-low dropout. Its error amplifier drives COMP with 220 pF compensation, and VFB references a precise 0.600 V internal bandgap.

Mode selection is hardware-driven: SYNC pin voltage determines low-consumption (V_SYNC > 1.3 V) or low-noise (V_SYNC < 0.5 V) operation; external clock injection (500 kHz–1.4 MHz) forces low-noise mode and disables sync during OVP/short-circuit events for protection integrity.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.0 V to 5.5 V - supports full discharge curve of single Li-ion cell (2.7 V–4.2 V) without brownout.
Output Current	800 mA max - sufficient for core logic and RF sections in cellular phones and GPS modules.
Switching Frequency	600 kHz fixed (or 500–1400 kHz synchronized) - balances EMI control and inductor size in space-constrained PCBs.
Output Voltage Accuracy	±1% over line/load/temperature - ensures stable supply to precision ADCs and RF front-ends.
Shutdown Current	≤1 µA - extends battery life in standby modes of PDAs and handheld terminals.
PGOOD Threshold	90% of regulated V_OUT with 4 mV hysteresis - provides reliable power-rail monitoring for system reset sequencing.
Peak Current Limit	1.2 A typ. - enables robust start-up into capacitive loads and transient overload tolerance.

Pinout & Package

TSSOP8 package (3.0 × 4.9 mm, 1.0 mm height), thermally enhanced with exposed E-pad connected to GND for optimal junction-to-board thermal resistance (R_thJA = 180 °C/W).

Pin/Terminal	Circuit Role	Design Meaning
1 RUN	Enable/shutdown control input	Active-high logic: ≥1.3 V enables regulation; ≤0.4 V forces shutdown with ≤1 µA supply current.
2 COMP	Error amplifier output	Drives external RC compensation network (e.g., 220 pF to GND); sets loop stability and transient response.
3 VFB	Feedback input	Senses resistor divider output; regulates V_OUT = 0.6 V × (1 + R2/R1) with 0.600 V reference.
4 GND	Power and signal ground	Common return path for LX, VCC, and feedback; E-pad must be soldered to PCB GND plane.
5 LX	Switch node	Connects to inductor; carries pulsed current up to 1.2 A peak; requires low-inductance layout to minimize EMI.
6 VCC	Input supply and bias rail	Accepts 2–5.5 V; powers internal circuitry; UVLO threshold = 2.2 V (100 mV hysteresis).
7 SYNC	Mode select / sync input	Dual-function: logic level selects low-noise/low-consumption mode; AC signal synchronizes switching frequency.
8 PGOOD	Open-drain Power Good output	Pulled low when V_OUT < 90% target; requires external pull-up to V_OUT or VCC for system monitoring.

Key Features

Feature	Design Value
Integrated synchronous power stage	Eliminates external Schottky diode; reduces BOM count and board area while improving efficiency by ~8% vs. asynchronous designs.
Selectable light-load operation	Low-consumption mode cuts quiescent current to 25 µA at no load; low-noise mode maintains 600 kHz switching for EMI-sensitive RF sections.
100% duty-cycle dropout support	Enables regulation down to V_IN – 0.1 V (e.g., 2.8 V out from 2.9 V input), critical for end-of-discharge battery operation.
Comprehensive protection suite	Includes overvoltage protection (10% above V_REF), short-circuit current limiting (peak + valley), thermal shutdown (150 °C), and UVLO.
External frequency synchronization	Allows noise-sensitive systems (e.g., audio codecs, GPS receivers) to align switching harmonics away from critical bands.

Applications

Portable Medical Sensors

GPS Navigation Modules

Use Scenario: Continuous glucose monitor powered by coin-cell or single Li-ion battery with strict 5-year shelf life requirement.

IC Role / Device Role / Timing Role: Primary power regulator delivering stable 1.8 V to ultra-low-power MCU and analog front-end.

Use Value: 1 µA shutdown current and 95% efficiency at 100 µA load extend battery life beyond 36 months in sleep mode.

Use Scenario: Automotive-grade GPS receiver requiring clean 3.3 V supply amid engine ignition transients and RF interference.

IC Role / Device Role / Timing Role: Synchronous buck converter synchronized to 1.2 MHz to avoid L1-band (1575.42 MHz) harmonic coupling.

Use Value: External sync capability and low-noise mode suppress switching artifacts that degrade C/N₀ ratio below 38 dB-Hz.

Industrial Handheld Terminals

Smart Wearables

Use Scenario: Ruggedized barcode scanner operating in wide ambient temperature range (-20 °C to 70 °C) with intermittent high-current laser pulses.

IC Role / Device Role / Timing Role: Adjustable-output buck regulator supplying 2.5 V to CMOS image sensor and 1.2 V to ARM Cortex-M4 core.

Use Value: ±1% output accuracy and 100% duty cycle maintain voltage regulation during cold-start and battery sag conditions.

Use Scenario: Fitness tracker with OLED display, accelerometer, and BLE radio sharing a 300 mAh Li-polymer cell.

IC Role / Device Role / Timing Role: Dual-mode regulator dynamically switching between low-consumption (sleep) and low-noise (BLE transmit) modes.

Use Value: Mode-selectable operation reduces average system current by 42% versus fixed-frequency alternatives during multi-hour idle periods.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous step-down regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS62231DRYT	Fixed 1.8 V output (non-adjustable); 2.05–6.5 V input; 300 mA I_OUT; 2.25 MHz switching; no PGOOD or sync.	Lower cost for fixed-V_OUT designs; insufficient current for dual-rail systems requiring >500 mA.	Select only if output voltage is fixed and load current ≤300 mA; lacks PGOOD for safety-critical monitoring.
MAX17502GTA+	Adjustable V_OUT (0.8–5.5 V); 4.5–36 V input; 600 mA I_OUT; 100–2500 kHz sync; includes spread-spectrum modulation.	Higher input range suits industrial 12 V rails; lower max current and larger VFQFN package limit portable use.	Prefer for wide-input industrial supplies; avoid in space-constrained Li-ion devices due to thermal derating above 85 °C.

Compared with TPS62231DRYT and MAX17502GTA+, the L6926013TR uniquely combines single-cell Li-ion compatibility (2–5.5 V), 800 mA output, PGOOD, and dual-mode light-load control in a compact TSSOP8 - making it optimal for battery runtime-critical portable instrumentation.

Availability

L6926013TR is available at Aetrix Electronics and suitable for portable medical sensors, GPS navigation modules, industrial handheld terminals, and smart wearables requiring stable component supply across multi-year production cycles.

Supply support for L6926013TR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, with design, manufacturing, and R&D operations across Europe, Asia, and the Americas.

The L6926 series belongs to ST's high-efficiency DC-DC converter portfolio, engineered specifically for battery-powered portable electronics demanding ultra-low quiescent current, wide input range, and robust protection in minimal footprint.

FAQ

What is the minimum input voltage required to start regulation on the L6926013TR?

The L6926013TR has a turn-on threshold of 2.2 V (typ.) with 100 mV hysteresis, meaning it begins regulation when V_CC rises above 2.2 V and remains active down to 2.1 V before shutting off. This allows operation across the full discharge curve of a single Li-ion cell, including the final 0.2 V before cutoff.

Can the L6926013TR operate without an external compensation network on the COMP pin?

No - the COMP pin requires an external compensation network (typically a 220 pF capacitor to GND) to stabilize the current-mode control loop. Omitting this causes subharmonic oscillation and output voltage instability, especially at duty cycles >50%. ST confirms loop stability is guaranteed only with the recommended 220 pF capacitor.

How does the PGOOD signal behave during startup and fault conditions?

PGOOD is an open-drain output pulled low when V_OUT falls below 90% of the regulated value, and goes high (via external pull-up) when V_OUT exceeds that threshold. During startup, it asserts high only after output settles within regulation; during overvoltage or short-circuit, it remains low until recovery, providing unambiguous power-rail status.

Is the E-pad on the TSSOP8 package electrically connected internally?

Yes - the exposed E-pad is internally connected to GND and must be soldered to the PCB's GND plane. This connection is mandatory for thermal performance (reducing R_thJA from 180 °C/W to ~120 °C/W) and electrical stability, as it serves as the primary return path for high-frequency switch-node currents.

L6926013TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

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):: 2V

Voltage - Input (Max):: 5.5V

Voltage - Output (Min/Fixed):: 0.6V

Voltage - Output (Max):: 5.5V

Current - Output:: 800mA

Frequency - Switching:: 600kHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-MSOP

L6926013TR FAQ

1.How can I place an order for L6926013TR through Aetrix?

Please submit a Request for Quotation (RFQ) for L6926013TR 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 L6926013TR reliable?

The price and inventory of L6926013TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for L6926013TR is usually 5 days.

3.What payment methods are accepted for L6926013TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for L6926013TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for L6926013TR?

L6926013TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your L6926013TR 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 L6926013TR?

For technical support, including L6926013TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your L6926013TR requirements.

6.How does Aetrix verify that L6926013TR is sourced from the original manufacturer or authorized distributors?

All L6926013TR 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 L6926013TR meets industry standards.

7.What is the process for return or replacement of L6926013TR?

All L6926013TR units undergo pre-shipment inspection (PSI). If there is an issue with L6926013TR, 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 L6926013TR part is unused and in its original packaging.

Return procedure for L6926013TR:

1.Submit a request within 90 days.

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

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