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Texas Instruments TPS65110RGE
- Part No.:
- TPS65110RGE
- Manufacturer:
- Texas Instruments
- Category:
- Special Purpose Regulators
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TPS65110RGE.pdf
- Description:
- IC REG CHRG PUMP LTPS 3OUT 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,995
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Product details
Overview
TPS65110RGE from Texas Instruments is a triple-output charge pump IC designed for LTPS-LCD bias power in compact portable displays. It delivers fixed 3.3 V (16 mA), 7.5 V (2 mA), and −2.7 V (1 mA) outputs from a 2.4–5.5 V input, with 5 mV typical VCC ripple and autonomous x1/x1.33/x1.5/x2 boost ratio selection-enabling stable analog power for small-form-factor LCD panels in smartphones and PDAs.
For engineers reviewing the TPS65110RGE datasheet, TPS65110RGE pinout, TPS65110RGE application, or TPS65110RGE equivalent, key selection criteria include its ultra-low-ripple VCC output, integrated sequential power-up/down control, fixed negative/positive bias voltages, and QFN-24 package compatibility with space-constrained handheld display designs.
Technical Context
The TPS65110RGE implements three independent regulated charge pump channels: VCC uses an autonomous boost architecture that dynamically selects x1, x1.33, x1.5, or x2 ratio based on VIN and VCC demand; VDD is fixed at 7.5 V with x3 boost; VSS is fixed at −2.7 V with x−1 inversion. All outputs are sourced from the VCC rail, requiring coordinated current budgeting.
Power sequencing is fully internal: VCC rises first, followed by VSS at 75% of nominal, then VDD; shutdown follows reverse order (VDD → VSS → VCC) even during abrupt VIN drop. Control logic includes I²C-compatible DATA/CLK pins and a single EN enable input with <1 µA shutdown current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.4 V to 5.5 V - supports single-cell Li-ion or dual-cell alkaline input without external regulation. |
| VCC Output | 3.3 V ±1.5%, 16 mA - primary analog supply for LCD source drivers with 5 mV typical ripple at 5 mA load. |
| VDD Output | 7.5 V ±3%, 2 mA - fixed positive gate drive voltage for LTPS TFT backplanes. |
| VSS Output | −2.7 V ±3%, 1 mA - fixed negative common electrode bias enabling high-contrast display operation. |
| Quiescent Current | 50 µA typical - enables >200-hour standby in battery-powered PDA systems. |
| Shutdown Current | <1 µA - eliminates parasitic drain during display-off states. |
| Package | 24-pin VQFN (RGE), 4 mm × 4 mm - thermally enhanced for high-density portable PCB layouts. |
Pinout & Package
TPS65110RGE is housed in a 24-pin VQFN (RGE) package with exposed thermal pad. Pin numbering follows top-view orientation per TI SLVS495.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CSP1 | VSS flying capacitor positive terminal | Connects to positive side of CS flying capacitor for VSS charge pump operation. |
| VCC | Main regulated output | Primary 3.3 V analog supply rail; powers VDD/VSS pumps and external circuitry. |
| CCN3, CCP2, CCN2, CCP3, CCN1, CCP1 | VCC flying capacitor terminals | Three differential pairs (CCP/CCN) for 0.22 µF flying caps enabling x1/x1.33/x1.5/x2 boost modes. |
| VIN | Main input supply | 2.4–5.5 V input; requires 4.7 µF ceramic decoupling for stability. |
| DATA / CLK | I²C serial interface inputs | Support EEPROM configuration and status readback; logic-level compatible with 1.3–1.5 V VIH. |
| EN | Enable control input | Active-high logic input; pulls low to enter sub-1 µA shutdown state. |
| AGND / PGND | Analog & power ground | Separate ground returns minimize noise coupling between sensitive analog and switching paths. |
| VROM | EEPROM power supply | Provides regulated 3.3 V to internal EEPROM; must be bypassed with 1 µF capacitor. |
| VDD / VSS | Secondary regulated outputs | 7.5 V and −2.7 V bias rails; each require dedicated 1 µF and 2.2 µF output capacitors. |
| CDP1–CDP3, CDN1–CDN3 | VDD/VSS flying capacitor terminals | Dedicated differential pairs for VDD (x3) and VSS (x−1) charge pumps using 0.1 µF flying caps. |
Key Features
| Feature | Design Value |
|---|---|
| Triple regulated charge pump outputs | Simultaneous 3.3 V/7.5 V/−2.7 V generation eliminates need for three discrete DC/DC converters. |
| Autonomous VCC boost ratio selection | Dynamically chooses x1/x1.33/x1.5/x2 based on VIN and load-maximizing efficiency across battery discharge curve. |
| Ultra-low VCC ripple (5 mV typ) | Enables high-fidelity analog signal integrity for LCD source driver ICs without additional LDO post-regulation. |
| Internal power sequencing | Guarantees safe VCC→VSS→VDD power-up and VDD→VSS→VCC power-down-even during sudden VIN collapse. |
| Integrated EEPROM interface | Allows factory-programmed configuration storage (e.g., VDD boost mode) via I²C-compatible DATA/CLK pins. |
Applications
| Smartphone LCD Bias | PDA Display Power |
|---|---|
Use Scenario: Powering active-matrix LTPS-LCD panels in sub-4-inch touchscreen smartphones with tight board area constraints. IC Role / Device Role / Timing Role: Generates all three bias rails (VCC/VDD/VSS) required for TFT gate/source drivers and common electrode control. Use Value: Eliminates discrete charge pumps and sequencing logic, reducing BOM count by ≥5 components while maintaining <5 mV VCC ripple for image fidelity. |
Use Scenario: Supplying display bias in handheld PDAs with dual-battery operation and extended battery life requirements. IC Role / Device Role / Timing Role: Provides regulated 3.3 V analog core, 7.5 V gate drive, and −2.7 V common electrode voltage with automatic VIN adaptation. Use Value: 50 µA quiescent current extends standby time; autonomous boost maintains VCC regulation as battery drops from 4.2 V to 2.4 V. |
| Portable Medical Display | Industrial Handheld Terminal |
Use Scenario: Driving monochrome or color LTPS-LCDs in battery-operated medical monitors requiring stable grayscale reproduction. IC Role / Device Role / Timing Role: Delivers low-noise 3.3 V VCC supply critical for analog pixel voltage accuracy and fixed VDD/VSS for consistent contrast. Use Value: 5 mV VCC ripple prevents visible banding artifacts; internal sequencing ensures reliable startup under variable temperature conditions. |
Use Scenario: Powering ruggedized LTPS displays in warehouse scanners and field service terminals operating across −40°C to +85°C ambient. IC Role / Device Role / Timing Role: Supplies display bias with guaranteed operation over full industrial temperature range and robust UVLO protection. Use Value: −40°C to +85°C operating range and 2.2 V UVLO hysteresis prevent erratic behavior during cold-start or brownout events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD bias power applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65111RGE | Fixed 5.0 V / 9.0 V / −3.0 V outputs; x2 VDD boost; higher VCC efficiency (90% at 10 mA). | Targeted at higher-voltage LTPS panels requiring 9 V gate drive instead of 7.5 V. | Select TPS65111RGE when display panel VDD specification exceeds 7.5 V and system VIN supports 3.6+ V minimum. |
| MAX1605ETG+ | Triple-output charge pump with adjustable VCC (2.5–5.5 V); no I²C interface; 20-pin TQFN. | Lacks EEPROM configuration and autonomous boost; requires external resistors for VCC setting. | Choose MAX1605ETG+ only if fixed 3.3 V VCC is not required and design can accommodate manual VCC tuning. |
Compared with TPS65110RGE, TPS65111RGE offers higher VDD voltage but reduced VSS headroom, while MAX1605ETG+ trades configurability for simplicity and lacks integrated sequencing-making TPS65110RGE optimal for 3.3 V/7.5 V/−2.7 V LTPS bias where ultra-low ripple and guaranteed startup sequence are mandatory.
Availability
TPS65110RGE is available at Aetrix Electronics and suitable for smartphone LCD bias, PDA display power, portable medical monitor interfaces, industrial handheld terminals, and LTPS-TFT panel reference designs requiring stable component supply and long-term production continuity.
Supply support for TPS65110RGE 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 portable power solutions.
The TPS65110RGE belongs to TI's LCD bias power management product line, engineered specifically for space-constrained LTPS-LCD applications demanding low-noise, sequenced, multi-rail charge pump power in consumer and industrial handheld devices.
FAQ
What is the exact output voltage tolerance of the TPS65110RGE VCC rail?
The TPS65110RGE VCC output is specified at 3.3 V with ±1.5% accuracy over temperature and load, measured as 3.25 V to 3.35 V at 5 mA output current and 2.8 V input. This tight regulation ensures stable analog supply for sensitive LCD source drivers without requiring external feedback trimming.
Does the TPS65110RGE support dynamic VCC voltage adjustment during operation?
No, the TPS65110RGE provides a fixed 3.3 V VCC output. Its autonomous boost ratio selection (x1/x1.33/x1.5/x2) adjusts only to maintain this fixed voltage across varying input conditions-it does not allow real-time reconfiguration of the VCC setpoint via I²C or other interface.
Can the TPS65110RGE be used with input voltages below 2.4 V?
No. The absolute minimum input voltage is 2.4 V per datasheet specifications, and the under-voltage lockout (UVLO) threshold rises at 2.5 V. Attempting operation below 2.4 V risks failure to start or unstable regulation; the device will remain in shutdown until VIN exceeds the UVLO threshold.
What is the role of the VROM pin on the TPS65110RGE?
The VROM pin supplies regulated power to the internal EEPROM used for factory-programmed configuration data. It must be decoupled with a 1 µF ceramic capacitor and is not intended for external use-it is not a general-purpose output or auxiliary supply rail.
How does the TPS65110RGE handle simultaneous load transients on VCC, VDD, and VSS?
The TPS65110RGE relies on proper external capacitor sizing: 2.2 µF on VCC, 1 µF on VDD, and 2.2 µF on VSS, plus matched flying capacitors (0.22 µF for VCC, 0.1 µF for VDD/VSS). These values ensure transient response remains within ripple limits (<5 mV on VCC at 5 mA step load) without requiring external compensation.
TPS65110RGE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Charge Pump, LTPS LCD
- Voltage - Input:
- 2.4V ~ 5.5V
- Number of Outputs:
- 3
- Voltage - Output:
- -2.7V, 3.3V, 7.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-VQFN (4x4)
TPS65110RGE FAQ
1.How can I place an order for TPS65110RGE through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS65110RGE 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 TPS65110RGE reliable?
The price and inventory of TPS65110RGE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS65110RGE is usually 5 days.
3.What payment methods are accepted for TPS65110RGE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS65110RGE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS65110RGE?
TPS65110RGE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS65110RGE 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 TPS65110RGE?
For technical support, including TPS65110RGE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS65110RGE requirements.
6.How does Aetrix verify that TPS65110RGE is sourced from the original manufacturer or authorized distributors?
All TPS65110RGE 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 TPS65110RGE meets industry standards.
7.What is the process for return or replacement of TPS65110RGE?
All TPS65110RGE units undergo pre-shipment inspection (PSI). If there is an issue with TPS65110RGE, 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 TPS65110RGE part is unused and in its original packaging.
Return procedure for TPS65110RGE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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