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

Texas Instruments TPS65186RGZT

Name: TPS65186RGZT
Brand: Texas Instruments
SKU: TPS65186RGZT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS65186RGZT

Manufacturer:: Texas Instruments

Category:: Power Management - Specialized

Package:: 48-VFQFN Exposed Pad

Datasheet:: TPS65186RGZT.pdf

Description:: IC PWR MGMT E INK 48VQFN

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Product details

Overview

TPS65186RGZT from Texas Instruments is a highly integrated PMIC designed specifically for E Ink® Vizplex™ electronic paper displays, generating ±15-V LDO outputs (VPOS/VNEG), ±16-V DC-DC rails, 22-V/–20-V charge-pump gate supplies (VDDH/VEE), and an adjustable –5.11-V VCOM driver - all from a single 3.0–6.0-V input. It supports 9.7-inch+ panels and enables precise backplane biasing with ±10-mV tracking accuracy and automatic kickback calibration.

For engineers reviewing the TPS65186RGZT datasheet, TPS65186RGZT pinout, TPS65186RGZT application, or TPS65186RGZT equivalent, this device delivers production-ready power sequencing, I²C-programmable rail control, thermistor-based panel temperature monitoring (±1°C), and integrated power-good signaling - critical for e-reader, EPD controller, and low-power portable display systems.

Technical Context

The TPS65186RGZT integrates two high-efficiency switching regulators: a boost converter (DCDC1) generating +16 V (up to 250 mA) and an inverting buck-boost (DCDC2) generating –16 V (up to 250 mA), both operating at 1 MHz. These feed two independent charge pumps (CP1: +22 V @ 10 mA; CP2: –20 V @ 12 mA) and two tracking LDOs (LDO1: +15 V / 120 mA; LDO2: –15 V / 120 mA) with ±50-mV inter-rail tolerance.

Its analog subsystem includes a 9-bit programmable VCOM amplifier (0 to –5.11 V, ±10 mV step), integrated NTC thermistor interface (TS pin), and automatic panel kickback voltage measurement with nonvolatile storage. Power sequencing is controlled via I²C (7-bit address 0x48) and hardware pins (PWRUP, WAKEUP), with open-drain PWR_GOOD indicating regulation status of CP1, CP2, LDO1, and LDO2.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3.0 V to 6.0 V - supports single-cell Li-ion or regulated 3.3/5-V system rails without external pre-regulation.
VPOS / VNEG Output	+15 V / –15 V, ±1% tolerance, 120 mA each - provides matched source-driver supply for active-matrix EPD panels.
VPOS–VNEG Tracking	±50 mV max difference - ensures stable differential timing margins across temperature for E Ink waveform fidelity.
VCOM Adjustment Range	0 V to –5.11 V in 10-mV steps (9-bit) - enables fine-tuned panel backplane bias to compensate for manufacturing variation and aging.
I²C Interface	Standard-mode (400 kHz), 7-bit address 0x48 - allows full rail enable/disable, voltage programming, sequencing, and interrupt configuration.
Thermal Monitoring	Integrated NTC interface (TS pin) with ±1°C accuracy (0–50°C) - supports panel temperature compensation and thermal safety shutdown at 150°C.
Package	48-pin VQFN (RGZ), 7.0 mm × 7.0 mm, 0.5-mm pitch - exposes thermal pad (PBKG) tied to VN for efficient heat dissipation in compact e-reader layouts.

Pinout & Package

TPS65186RGZT uses a 48-pin VQFN (RGZ) package with exposed thermal pad (PowerPad®) electrically connected to PBKG and intended to be soldered to a wide copper trace tied to VN (–16 V) for thermal and electrical performance. Pin numbering follows top-view layout per TI SLVSB04A datasheet.

Pin/Terminal	Circuit Role	Design Meaning
VIN	Main input supply	3.0–6.0-V primary power for digital core, LDO bias, and DC-DC controllers.
VIN_P	Inverting buck-boost input	Dedicated input for DCDC2 (–16 V rail); decoupled separately for noise isolation.
VB / VB_SW	Boost converter output/switch node	VB = +16 V rail; VB_SW = switch node for external inductor (2.2 µH) and diode/capacitor network.
VN / VN_SW	Inverting buck-boost output/switch node	VN = –16 V rail; VN_SW = switch node for external inductor (4.7 µH) and capacitor network.
VPOS / VNEG	LDO outputs	+15 V / –15 V source-driver supplies; track within ±50 mV; each rated for 120 mA continuous load.
VDDH_D / VEE_D	Charge pump base voltages	VDDH_D = +16 V input to CP1; VEE_D = –16 V input to CP2 - fed directly from DCDC1/DCDC2 outputs.
VCOM_CTRL / VCOM	VCOM amplifier control & output	VCOM_CTRL enables/disables VCOM discharge; VCOM = filtered output (0 to –5.11 V) driving panel backplane.
SCL / SDA	I²C interface	Standard-mode (400 kHz) bidirectional bus for register access, sequencing, and calibration data readback.
PWR_GOOD	Open-drain power-good indicator	Pulled low if CP1, CP2, LDO1, or LDO2 is disabled, unregulated, or faulted - requires external pull-up.
TS	Thermistor input	Analog input for 10-kΩ NTC + 43-kΩ linearization resistor; enables panel temperature measurement (–10°C to 85°C).

Key Features

Feature	Design Value
Integrated VCOM amplifier with EEPROM calibration storage	9-bit programmable (0 to –5.11 V), ±10-mV step, ±1.5% accuracy; stores kickback measurement result as power-up default.
Automatic panel kickback voltage measurement	On-chip ADC and timing logic eliminate manual VCOM calibration during production; reduces test time and yield loss.
Programmable power-up/power-down sequencing	I²C-configurable delay timers (UDLY/DDLY registers) and hardware-triggered (PWRUP/WAKEUP) state transitions ensure safe EPD panel bias ramping.
Panel temperature monitoring with interrupt	Hardware-supported NTC reading with HOT/COLD threshold interrupts and delta-T change detection - enables adaptive waveform tuning.
Four-rail power-good monitoring	Single open-drain PWR_GOOD pin reflects regulation status of CP1, CP2, LDO1, and LDO2 - simplifies system-level power validation.

Applications

EPD Panel Power Supply	E-Book Reader System
Use Scenario: Powering 9.7-inch+ active-matrix E Ink Vizplex panels requiring tightly tracked ±15-V source drivers, ±22/–20-V gate supplies, and calibrated VCOM bias. IC Role / Device Role / Timing Role: Single-chip PMIC providing all six critical EPD rails with synchronized startup, inter-rail tracking, and panel-specific voltage tuning. Use Value: Eliminates discrete DC-DC, LDO, and charge-pump ICs; reduces BOM count by ≥5 components and PCB area by >30% versus multi-chip solutions.	Use Scenario: Enabling low-quiescent-power sleep/wake cycles in battery-powered e-readers with thermal-aware display management. IC Role / Device Role / Timing Role: Manages deep-sleep current (3.5 µA), wake-on-interrupt (WAKEUP pin), and fast power-up (<1.8 ms) for responsive user experience. Use Value: Extends battery life via sub-10-µA system standby; supports firmware-driven VCOM recalibration without host MCU intervention.
EPSON S1D13522 (ISIS) Timing Controller Support	OMAP-Based EPD Platform
Use Scenario: Providing compliant power rails and sequencing for EPSON's ISIS timing controller used in commercial e-reader designs. IC Role / Device Role / Timing Role: Supplies VPOS/VNEG (±15 V), VDDH/VEE (±22/–20 V), and VCOM with timing-aligned enable signals matching ISIS power requirements. Use Value: Meets ISIS datasheet rail tolerances and sequencing windows; eliminates need for custom power sequencing logic or FPGA glue logic.	Use Scenario: Integrating with TI OMAP processors that include software-based EPD timing control but lack dedicated EPD power peripherals. IC Role / Device Role / Timing Role: Offloads all analog power generation and panel biasing from the application processor, freeing CPU cycles for rendering and UI. Use Value: Enables use of standard OMAP Linux BSPs without hardware modification; supports runtime VCOM adjustment via I²C from userspace.

EPD Panel Power Supply

E-Book Reader System

Use Scenario: Powering 9.7-inch+ active-matrix E Ink Vizplex panels requiring tightly tracked ±15-V source drivers, ±22/–20-V gate supplies, and calibrated VCOM bias.

IC Role / Device Role / Timing Role: Single-chip PMIC providing all six critical EPD rails with synchronized startup, inter-rail tracking, and panel-specific voltage tuning.

Use Value: Eliminates discrete DC-DC, LDO, and charge-pump ICs; reduces BOM count by ≥5 components and PCB area by >30% versus multi-chip solutions.

Use Scenario: Enabling low-quiescent-power sleep/wake cycles in battery-powered e-readers with thermal-aware display management.

IC Role / Device Role / Timing Role: Manages deep-sleep current (3.5 µA), wake-on-interrupt (WAKEUP pin), and fast power-up (<1.8 ms) for responsive user experience.

Use Value: Extends battery life via sub-10-µA system standby; supports firmware-driven VCOM recalibration without host MCU intervention.

EPSON S1D13522 (ISIS) Timing Controller Support

OMAP-Based EPD Platform

Use Scenario: Providing compliant power rails and sequencing for EPSON's ISIS timing controller used in commercial e-reader designs.

IC Role / Device Role / Timing Role: Supplies VPOS/VNEG (±15 V), VDDH/VEE (±22/–20 V), and VCOM with timing-aligned enable signals matching ISIS power requirements.

Use Value: Meets ISIS datasheet rail tolerances and sequencing windows; eliminates need for custom power sequencing logic or FPGA glue logic.

Use Scenario: Integrating with TI OMAP processors that include software-based EPD timing control but lack dedicated EPD power peripherals.

IC Role / Device Role / Timing Role: Offloads all analog power generation and panel biasing from the application processor, freeing CPU cycles for rendering and UI.

Use Value: Enables use of standard OMAP Linux BSPs without hardware modification; supports runtime VCOM adjustment via I²C from userspace.

Equivalent & Alternatives

The following parts are listed as comparable options for similar EPD power management applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS65185RGZT	Lower VPOS/VNEG current (100 mA vs. 120 mA); no VCOM amplifier; fixed 22-V/–20-V charge pumps (no VDDH/VEE adjustment)	Targeted at smaller panels (<7 inch); lacks automatic kickback calibration and panel temperature sensing	Select when panel size and VCOM precision requirements are relaxed and cost sensitivity is higher.
MAX17135ETJ+	Higher input range (4.5–28 V); includes integrated gate drivers; no I²C VCOM control or kickback measurement	Designed for larger industrial EPD panels; requires external microcontroller for VCOM calibration and sequencing	Select for high-input-voltage systems or where integrated gate drivers reduce external component count despite added complexity.

Compared with TPS65186RGZT, TPS65185RGZT sacrifices VCOM programmability and panel calibration for lower cost and footprint, while MAX17135ETJ+ trades I²C-integrated intelligence for wider input range and gate-driver integration - making TPS65186RGZT the optimal choice for mid-to-large consumer e-readers demanding production-ready calibration and thermal awareness.

Availability

TPS65186RGZT is available at Aetrix Electronics and suitable for e-book readers, EPD controller reference designs, and portable electronic paper display systems requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.

Supply support for TPS65186RGZT 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in low-power display and portable electronics solutions.

The TPS65186RGZT belongs to TI's EPD-specific PMIC product line, engineered to consolidate all power functions required by E Ink Vizplex panels - eliminating design risk, reducing qualification time, and enabling rapid deployment in battery-constrained portable devices.

FAQ

What is the input voltage range supported by the TPS65186RGZT?

The TPS65186RGZT supports an input voltage range of 3.0 V to 6.0 V on VIN, VIN_P, and VIN3P3 pins. This accommodates single-cell Li-ion batteries (3.0–4.2 V) and regulated 3.3-V or 5-V system supplies without external pre-regulation. Undervoltage lockout activates at 2.9 V with 400-mV hysteresis to prevent erratic operation during brownout conditions.

How does the TPS65186RGZT achieve VPOS and VNEG voltage tracking?

The TPS65186RGZT achieves VPOS–VNEG tracking through internal feedback alignment and matched LDO architecture, guaranteeing a maximum difference of ±50 mV across temperature and load. This is verified under test conditions with ±20 mA load at 0°C–60°C, ensuring stable differential timing for E Ink waveforms - a key requirement for grayscale consistency in TPS65186RGZT-based displays.

Can the TPS65186RGZT automatically calibrate VCOM for E Ink panels?

Yes, the TPS65186RGZT includes on-chip circuitry to measure panel kickback voltage and store the result in nonvolatile memory. When enabled, this feature eliminates manual VCOM calibration during production. The calibrated value becomes the default VCOM power-up setting, improving yield and reducing test time - a unique capability confirmed in the TPS65186RGZT datasheet Section 5 and Figure 17.

What thermal protection features does the TPS65186RGZT provide?

The TPS65186RGZT incorporates thermal shutdown at 150°C with 20°C hysteresis, plus a dedicated TS pin for external NTC-based panel temperature monitoring. The TS interface supports programmable HOT/COLD thresholds and delta-T interrupts, enabling firmware-driven thermal compensation of EPD waveforms - critical for maintaining image quality across ambient conditions in TPS65186RGZT deployments.

Is the TPS65186RGZT compatible with EPSON S1D13522 (ISIS) timing controllers?

Yes, the TPS65186RGZT is explicitly validated for use with EPSON S1D13522 (ISIS) and S1D13521 (Broadsheet) timing controllers. Its rail voltages (±15 V LDOs, ±22/–20 V charge pumps), sequencing flexibility, and I²C programmability meet ISIS power requirements per EPSON application notes - making TPS65186RGZT a drop-in power solution for ISIS-based e-reader reference designs.

TPS65186RGZT Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: E Ink®, Vizplex™

Package/Case:: 48-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Applications:: E Ink®, Vizplex™ Display, OMAP™

Current - Supply:: 5.5mA

Voltage - Supply:: 3V ~ 6V

Operating Temperature:: -10°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-VQFN (7x7)

TPS65186RGZT FAQ

1.How can I place an order for TPS65186RGZT through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS65186RGZT 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 TPS65186RGZT reliable?

The price and inventory of TPS65186RGZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS65186RGZT is usually 5 days.

3.What payment methods are accepted for TPS65186RGZT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS65186RGZT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS65186RGZT?

TPS65186RGZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS65186RGZT 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 TPS65186RGZT?

For technical support, including TPS65186RGZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS65186RGZT requirements.

6.How does Aetrix verify that TPS65186RGZT is sourced from the original manufacturer or authorized distributors?

All TPS65186RGZT 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 TPS65186RGZT meets industry standards.

7.What is the process for return or replacement of TPS65186RGZT?

All TPS65186RGZT units undergo pre-shipment inspection (PSI). If there is an issue with TPS65186RGZT, 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 TPS65186RGZT part is unused and in its original packaging.

Return procedure for TPS65186RGZT:

1.Submit a request within 90 days.

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

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