My Inquiry
My Account
Texas Instruments BUF05703PWR
- Part No.:
- BUF05703PWR
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
BUF05703PWR.pdf
- Description:
- IC AMP TFT-LCD 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,632
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BUF05703PWR from Texas Instruments is a 4-channel gamma correction buffer with integrated VCOM driver, designed for high-resolution LCD panel biasing. It delivers >10mA per gamma channel and >100mA (typ) on the VCOM output, operates from 4.5V to 16V, supports rail-to-rail output, and is specified for –40°C to +85°C industrial temperature range - enabling precise grayscale control in flat-panel displays.
For engineers reviewing the BUF05703PWR datasheet, BUF05703PWR pinout, BUF05703PWR application, or BUF05703PWR equivalent, this device is selected for its matched input/output voltage swing architecture across four gamma channels plus VCOM, high capacitive load drive (>100pF), low power per channel (<250µA), and TSSOP-14 package compatibility with space-constrained LCD timing controller designs.
Technical Context
The BUF05703PWR implements a segmented input-stage architecture: gamma buffers 1–2 use NMOS-input stages with common-mode range from 1V to VDD, while buffers 3–4 use PMOS-input stages covering 0V to (VDD – 1V), ensuring optimal swing matching to gamma voltage ladder positions. The dedicated VCOM buffer features enhanced output stage capable of sourcing/sinking ≥30mA with <1mV/mA load regulation.
Its flow-through pinout minimizes PCB trace crosstalk and simplifies routing for multi-channel reference distribution. Internal ESD protection meets 4kV HBM and 1.5kV CDM standards, and all channels are characterized for stable operation driving ≥100pF loads with >50° phase margin - critical for transient immunity during LCD source driver switching events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gamma Channels | 4 independent high-current buffers for LCD gamma voltage ladder nodes |
| VCOM Channel | 1 integrated high-drive buffer (≥30mA) for LCD panel common electrode bias |
| Supply Range | 4.5V to 16V - supports wide-input LCD power rails without external regulation |
| Output Drive | Gamma: >10mA; VCOM: >100mA typ - sustains heavy capacitive loads (≥100pF) without oscillation |
| Bandwidth | Gamma: 0.8MHz; VCOM: 0.7MHz - sufficient for fast gamma step response in HD/UXGA panels |
| Input Offset | ±15mV max over –40°C to +85°C - ensures grayscale linearity across temperature |
| ESD Rating | 4kV HBM, 1.5kV CDM - robust handling in manufacturing and panel integration |
Pinout & Package
TSSOP-14 package (PW designator), 5.0mm × 4.4mm footprint, 0.65mm pitch, exposed pad not present - compatible with standard reflow profiles and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | VDD | Positive supply input for all buffers; decoupling required at both pins |
| 2, 3, 4, 5 | IN1–IN4 | Gamma reference voltage inputs - matched to ladder node positions |
| 6 | INCOM | VCOM reference input - accepts DC or low-frequency AC-coupled bias |
| 7, 14 | GND | Analog ground return for all channels; separate GND pins reduce ground bounce |
| 9, 10, 11, 12 | OUT1–OUT4 | Gamma buffer outputs - low-impedance drivers for source driver reference inputs |
| 13 | OUTCOM | VCOM output - high-current driver for LCD common electrode capacitance |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full-swing gamma voltage delivery across entire supply range (e.g., 0V to 16V) |
| Matched input ranges | Buffers 1–2: 1V to VDD; Buffers 3–4: 0V to (VDD – 1V) - prevents clipping at ladder extremes |
| Flow-through pinout | Minimizes signal crosstalk and simplifies layer stacking in dense LCD timing board layouts |
| Low quiescent current | <250µA per channel - reduces thermal load in thermally constrained display enclosures |
| Capacitive load stability | Stable with ≥100pF loads and >50° phase margin - eliminates need for external compensation |
Applications
| LCD Flat Panel Displays | Industrial HMI Panels |
|---|---|
Use Scenario: Driving gamma reference inputs and VCOM node in 1080p/4K LCD modules used in medical monitors and kiosks. IC Role / Device Role / Timing Role: Gamma correction buffer and VCOM driver - provides stable, low-noise bias voltages synchronized to source driver clocking. Use Value: Ensures consistent grayscale reproduction across operating temperature (–40°C to +85°C) and eliminates color shift due to gamma drift. |
Use Scenario: Biasing high-reliability LCDs in factory automation HMIs exposed to vibration and wide ambient temperature swings. IC Role / Device Role / Timing Role: Precision reference buffer - maintains gamma linearity under ESD-prone industrial environments. Use Value: 4kV HBM ESD rating and robust load regulation (<0.85mV/mA) prevent field failures from electrostatic discharge or cable coupling. |
| LCD Television Displays | Automotive Infotainment Displays |
Use Scenario: Generating gamma reference voltages for LED-backlit TV panels with local dimming zones. IC Role / Device Role / Timing Role: Multi-channel voltage follower - replicates resistor-ladder gamma points with minimal loading error. Use Value: >10mA output drive sustains reference integrity despite parasitic capacitance from long flex cables to source drivers. |
Use Scenario: Providing gamma and VCOM bias in automotive-grade LCD clusters operating from 12V battery rail. IC Role / Device Role / Timing Role: High-voltage analog buffer - operates directly from unregulated 4.5V–16V supply without LDO dependency. Use Value: Wide supply range accommodates cold-crank (4.5V) and load-dump (16V) transients without reset or dropout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar gamma correction buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BUF06703PWR | 6 gamma channels, no VCOM channel - higher channel count but lacks integrated VCOM driver | Used where separate VCOM IC is already present or panel requires >4 gamma points without VCOM integration | Select when system-level VCOM buffering is handled externally and additional gamma precision is needed |
| BUF07703PWP | 6 gamma + 1 VCOM channel in HTSSOP-20 PowerPAD package - higher thermal performance and pin count | Required for ultra-high-resolution panels needing 6 gamma points plus high-current VCOM drive in thermally demanding environments | Choose when thermal dissipation exceeds TSSOP-14 limits or 6-channel gamma resolution is mandatory |
Compared with BUF05703PWR, BUF06703PWR offers two extra gamma channels but removes VCOM integration - increasing BOM count and layout complexity; BUF07703PWP adds both channel count and thermal headroom via PowerPAD, making it suitable for higher-power panels but requiring larger PCB area and different footprint.
Availability
BUF05703PWR is available at Aetrix Electronics and suitable for LCD flat panel displays, industrial HMI systems, and automotive infotainment modules requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for BUF05703PWR 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 and embedded processing technologies, with decades of expertise in display interface and power management ICs.
The BUFxx703 product line was engineered specifically for LCD gamma correction and VCOM biasing - delivering matched channel performance, high capacitive drive, and industrial temperature reliability in compact packages.
FAQ
What is the maximum capacitive load the BUF05703PWR can drive stably?
The BUF05703PWR is characterized for stable operation with ≥100pF capacitive loads across all gamma and VCOM channels, maintaining >50° phase margin per Figure 38 in the datasheet. This enables direct connection to source driver reference inputs without external compensation networks, even with PCB trace and connector parasitics.
How does the input stage architecture of BUF05703PWR prevent clipping in gamma voltage ladders?
The BUF05703PWR uses segmented input stages: gamma buffers 1–2 accept 1V to VDD, while buffers 3–4 accept 0V to (VDD – 1V). This matches typical gamma ladder distributions - preventing clipping at rail extremes and preserving grayscale fidelity across the full 0–100% intensity range.
Can BUF05703PWR operate from a 5V-only supply in low-power LCD applications?
Yes - the BUF05703PWR supports VDD from 4.5V to 16V, and its rail-to-rail output and low quiescent current (<250µA/channel) make it fully functional at 5V. Output swing remains within 100mV of rails at 5mA load, ensuring accurate gamma point replication in 5V-based timing controllers.
What is the purpose of the dual GND pins (pins 7 and 14) on BUF05703PWR?
Pins 7 and 14 are separate analog ground returns for the gamma and VCOM sections. This isolation minimizes ground bounce coupling between high-current VCOM switching and precision gamma reference paths - preserving voltage accuracy and reducing crosstalk-induced grayscale artifacts.
Does BUF05703PWR require external compensation components for stability?
No - the BUF05703PWR is internally compensated for unity-gain stability with ≥100pF capacitive loads, as verified in Figure 37 and Figure 38 of the SBOS269C datasheet. No external resistors or capacitors are needed for basic gamma/VCOM buffering, simplifying layout and reducing BOM cost.
BUF05703PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- TFT-LCD Panels: Gamma Buffer, VCOM Driver
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 4
- -3db Bandwidth:
- 800 kHz
- Slew Rate:
- 1V/µs
- Current - Supply:
- 1.7 mA
- Current - Output / Channel:
- -
- Voltage - Supply, Single/Dual (±):
- 4.5V ~ 16V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 14-TSSOP
BUF05703PWR FAQ
1.How can I place an order for BUF05703PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for BUF05703PWR 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 BUF05703PWR reliable?
The price and inventory of BUF05703PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUF05703PWR is usually 5 days.
3.What payment methods are accepted for BUF05703PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUF05703PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUF05703PWR?
BUF05703PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUF05703PWR 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 BUF05703PWR?
For technical support, including BUF05703PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUF05703PWR requirements.
6.How does Aetrix verify that BUF05703PWR is sourced from the original manufacturer or authorized distributors?
All BUF05703PWR 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 BUF05703PWR meets industry standards.
7.What is the process for return or replacement of BUF05703PWR?
All BUF05703PWR units undergo pre-shipment inspection (PSI). If there is an issue with BUF05703PWR, 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 BUF05703PWR part is unused and in its original packaging.
Return procedure for BUF05703PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BUF05703PWR Tags
-
LT6552CS8#PBF
Analog Devices Inc.
-
LT6205IS5#TRPBF
Analog Devices Inc.
-
LT6206IMS8#TRPBF
Analog Devices Inc.
-
LT6552CDD#PBF
Analog Devices Inc.
-
LT6552IS8#PBF
Analog Devices Inc.
-
LT1252CS8#PBF
Analog Devices Inc.
-
AD818ARZ-REEL7
Analog Devices Inc.
-
MAX4310EUA+
Analog Devices Inc./Maxim Integrated
-
AD829ARZ
Analog Devices Inc.
-
AD810ARZ
Analog Devices Inc.
-
MAX4310ESA+
Analog Devices Inc./Maxim Integrated
-
MAX4313ESA+
Analog Devices Inc./Maxim Integrated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
