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Texas Instruments TPS61096ADSSR
- Part No.:
- TPS61096ADSSR
- Manufacturer:
- Texas Instruments
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
TPS61096ADSSR.pdf
- Description:
- IC REG BOOST ADJ 350MA 12WSON
- Quantity:
- Payment:
- Shipping:
Inventory:9,363
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Product details
Overview
TPS61096ADSSR from Texas Instruments is an ultra-low-quiescent-current (1 µA) boost converter IC designed for high-voltage bias generation in battery-powered portable electronics. It operates from 1.8 V to 5.5 V input, delivers adjustable output from 4.5 V to 28 V, integrates dual low-power level shifters, and uses PFM peak-current control for >70% efficiency at 10 µA load - ideal for stylus and memory LCD bias applications.
For engineers reviewing the TPS61096ADSSR datasheet, TPS61096ADSSR pinout, TPS61096ADSSR application, or TPS61096ADSSR equivalent, key selection criteria include its 12-pin WSON package, selectable 250 mA / 500 mA inductor peak current limit, integrated power diode, dual-level-shifter functionality with 200 kHz pulse capability, and UVLO/thermal/OVP protection features.
Technical Context
The TPS61096ADSSR implements a PFM peak-current control architecture that inherently operates in discontinuous conduction mode (DCM), enabling stable regulation across wide input/output/load ranges without external compensation. Its feedback loop references a precision 1.0 V internal bandgap (±2% over temperature), and output voltage is set via an external resistor divider connected to FB and VOSNS pins.
Two independent level shifter channels accept logic-level inputs (LVI1/LVI2) referenced to VIN and translate them to full VOUT-rail outputs (HVO1/HVO2), each consuming only 0.5–3 µA quiescent current. The ILIM pin selects between 250 mA or 500 mA switch current limits, directly affecting inductor ripple, component size, and maximum deliverable output current under given VIN/VOUT conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 5.5 V - supports single-cell Li-ion (3.0–4.2 V), two-cell alkaline (2.4–3.2 V), or USB-powered systems. |
| Output Voltage Range | 4.5 V to 28 V - programmable via FB/VOSNS resistor divider; enables memory LCD, RF MEMS relay, and sensor bias rails. |
| Quiescent Current (VIN) | 1.2 µA typical - enables multi-year battery life in always-on, ultra-low-power applications like stylus pens. |
| Peak Switch Current Limit | Selectable 0.25 A or 0.5 A via ILIM pin - determines inductor sizing, ripple, and max output current (e.g., ~30 mA at 3.3 V → 18 V). |
| Level Shifter Supply | VOUT-referenced - allows direct translation of low-voltage MCU GPIOs to high-voltage control signals without external level-shifting circuitry. |
| Protection Features | UVLO (1.5 V rising), OVP (29.4 V threshold), thermal shutdown (150 °C), and soft-start (1 ms) - ensures robust operation during battery sag or fault conditions. |
| Package | 12-pin WSON (3.0 mm × 2.0 mm, 0.75 mm height) - compact footprint suitable for space-constrained portable designs. |
Pinout & Package
The TPS61096ADSSR is housed in a thermally enhanced 12-pin WSON package (3.0 mm × 2.0 mm × 0.75 mm) with exposed thermal pad. Pin 10 (GND) serves as primary ground reference and thermal path; the exposed pad must be soldered to PCB ground for optimal thermal performance and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LVI1 | Level shifter 1 input | Accepts logic-level signal (0.15×VIN low / 0.8×VIN high); referenced to VIN rail. |
| LVI2 | Level shifter 2 input | Independent second logic input; identical voltage thresholds and timing to LVI1. |
| VIN | Main power supply input | Supplies internal circuitry and level shifter logic stages; requires 4.7 µF ceramic decoupling. |
| SW | Power switch node | Connects to external inductor; carries pulsed current up to 500 mA peak; requires low-inductance layout. |
| ILIM | Current limit select | Logic-high = 500 mA limit; logic-low = 250 mA limit; must be actively driven - no floating. |
| EN | Enable control | Active-high enable; <0.4 V disables device, >1.2 V enables; draws <50 nA leakage when disabled. |
| FB | Feedback reference point | Senses divided output voltage; internal 1.0 V reference sets VOUT = 1.0 × (1 + RUP/RDOWN). |
| VOSNS | Output voltage sense | Second feedback node; used with FB to configure resistor divider for precise high-voltage regulation. |
| VOUT | Boost output power rail | Delivers regulated high-voltage output; powers external loads and level shifter high-side stages. |
| GND | Power and signal ground | Common return for VIN, SW, FB, VOSNS, EN, ILIM, and level shifter logic; connects to thermal pad. |
| HVO2 | Level shifter 2 output | High-voltage replica of LVI2; drives capacitive loads ≤10 pF at up to 200 kHz with 800 µA drive strength. |
| HVO1 | Level shifter 1 output | High-voltage replica of LVI1; identical specs to HVO2; enables dual high-side control from one IC. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ boost conversion | 1.2 µA typical quiescent current into VIN enables >10-year battery life in microamp-load applications. |
| Dual integrated level shifters | Two independent channels convert VIN-referenced logic to full VOUT-rail outputs with <1 µA/channel static current. |
| Selectably scalable current limit | ILIM pin toggles between 250 mA (low-ripple, small-inductor light-load use) and 500 mA (higher output current capability). |
| PFM DCM control architecture | Eliminates need for external compensation; maintains stability across 1.8–5.5 V input and 4.5–28 V output ranges. |
| Integrated power diode | Reduces BOM count and layout area; eliminates external Schottky diode and associated routing complexity. |
Applications
| Stylus Power Management | Memory LCD Bias Generation |
|---|---|
Use Scenario: Active capacitive stylus requiring high-voltage bias for tip sensing and low-power wake-on-touch operation. IC Role / Device Role / Timing Role: TPS61096ADSSR generates stable 18–24 V bias from single Li-ion cell while maintaining sub-µA sleep current. Use Value: Enables multi-month battery life with responsive touch detection, eliminating need for discrete boost + level shifter solutions. | Use Scenario: Reflective memory LCD display in e-readers or industrial HMIs needing dual-polarity bias rails. IC Role / Device Role / Timing Role: TPS61096ADSSR supplies positive high-voltage rail (e.g., +15 V); companion inverter generates negative rail. Use Value: Reduces bill-of-materials by integrating boost conversion and logic-level translation for display controller interface. |
| Sensor Signal Conditioning | RF MEMS Relay Control |
Use Scenario: Ultra-low-power gas or environmental sensor node powered by coin cell, requiring high-voltage excitation. IC Role / Device Role / Timing Role: TPS61096ADSSR provides regulated 12–20 V excitation voltage and level-shifts MCU GPIO to drive sensor interface circuitry. Use Value: Achieves 70% efficiency at 10 µA load, extending shelf life and operational duration beyond conventional boost converters. | Use Scenario: Miniature RF switching module using MEMS relays that require fast, high-voltage actuation pulses. IC Role / Device Role / Timing Role: TPS61096ADSSR generates 24–28 V rail and translates MCU logic pulses (50 kHz, 50% duty) to full-rail HVO1/HVO2 outputs. Use Value: Delivers clean, jitter-free high-voltage pulses with 500 ns propagation delay and 200 kHz bandwidth - critical for reliable RF path switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS610981DSER | Lower max VOUT (5.5 V), no level shifters, 300 nA IQ, 6-pin WSON - optimized for ultra-low-IQ low-voltage bias only. | Cannot replace TPS61096ADSSR where >5.5 V output or level shifting is required; suited for PMIC auxiliary rails. | Select only if application needs sub-µA IQ at ≤5.5 V output and no level shifting - not a functional substitute for TPS61096ADSSR's 28 V + dual LS capability. |
| MAX17222ELT+T | 28 V max VOUT, 1.5 µA IQ, no integrated level shifters, 6-pin WLP - requires external level-shifting circuitry for high-side control. | Matches voltage range but adds design complexity and board area for level-shifting functions TPS61096ADSSR integrates natively. | Choose when footprint minimization outweighs integration benefits, and when external level shifters are already present or preferred for signal isolation. |
Compared with TPS61096ADSSR, the TPS610981DSER lacks high-voltage capability and level shifters entirely, while the MAX17222ELT+T matches output voltage but forces external implementation of level-shifting - making TPS61096ADSSR uniquely suited for space- and power-constrained applications requiring both functions in one die.
Availability
TPS61096ADSSR is available at Aetrix Electronics and suitable for stylus power management, memory LCD bias generation, sensor signal conditioning, and RF MEMS relay control requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.
Supply support for TPS61096ADSSR 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 high-efficiency DC/DC conversion and battery-optimized system solutions.
The TPS61096A product line was engineered specifically for ultra-low-power, high-output-voltage bias generation in portable and wearable devices - combining boost conversion, protection, and level-shifting in a single miniature package to eliminate discrete support circuitry.
FAQ
What is the minimum input voltage required for TPS61096ADSSR to start switching?
The TPS61096ADSSR incorporates an under-voltage lockout (UVLO) circuit with a rising threshold of 1.5 V and 200 mV hysteresis. Therefore, the device begins switching only when VIN rises above 1.5 V. Below this, the IC remains disabled regardless of EN pin state. This ensures reliable startup from partially discharged batteries while preventing erratic operation near cutoff.
How does the ILIM pin affect inductor selection for TPS61096ADSSR?
The ILIM pin directly determines the peak switch current limit - 250 mA when pulled low, 500 mA when pulled high. For light-load, space-constrained applications (e.g., stylus), selecting 250 mA allows use of smaller inductors (e.g., 2.2 µH) with lower saturation current ratings. At 500 mA, larger inductors (≥4.7 µH) with ≥1.5 A saturation current are recommended to maintain stability and efficiency at higher output currents.
Can TPS61096ADSSR drive capacitive loads on its HVO1/HVO2 outputs?
Yes - the TPS61096ADSSR level shifter outputs are specified for capacitive loads up to 10 pF with 200 kHz pulse capability and 500 ns propagation delay. Driving larger capacitive loads (e.g., >20 pF) degrades edge rate and timing accuracy; for such cases, external buffer amplifiers are recommended. The 800 µA sourcing/sinking capability supports moderate gate-drive or relay-coil interfacing directly.
What is the role of the VOSNS pin in TPS61096ADSSR's feedback network?
The VOSNS pin works in conjunction with FB to implement a precision resistive divider for high-voltage output programming. Unlike standard boost converters that use only FB, TPS61096ADSSR places the upper resistor (RUP) between VOUT and VOSNS, and the lower resistor (RDOWN) between VOSNS and FB. This configuration improves noise immunity and accuracy at high output voltages by referencing the divider to VOUT rather than GND, minimizing error from FB pin leakage.
Does TPS61096ADSSR require external compensation components?
No - the TPS61096ADSSR uses a PFM peak-current control scheme operating inherently in discontinuous conduction mode (DCM), which provides unconditional stability across its full operating range. No external compensation capacitor or resistor is needed. This simplifies design, reduces BOM count, and eliminates tuning effort - a key advantage over voltage-mode or current-mode controllers requiring loop compensation.
TPS61096ADSSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 4.5V
- Voltage - Output (Max):
- 28V
- Current - Output:
- 350mA (Switch)
- Frequency - Switching:
- -
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WSON (3x2)
TPS61096ADSSR FAQ
1.How can I place an order for TPS61096ADSSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61096ADSSR 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 TPS61096ADSSR reliable?
The price and inventory of TPS61096ADSSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61096ADSSR is usually 5 days.
3.What payment methods are accepted for TPS61096ADSSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61096ADSSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61096ADSSR?
TPS61096ADSSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61096ADSSR 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 TPS61096ADSSR?
For technical support, including TPS61096ADSSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61096ADSSR requirements.
6.How does Aetrix verify that TPS61096ADSSR is sourced from the original manufacturer or authorized distributors?
All TPS61096ADSSR 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 TPS61096ADSSR meets industry standards.
7.What is the process for return or replacement of TPS61096ADSSR?
All TPS61096ADSSR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61096ADSSR, 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 TPS61096ADSSR part is unused and in its original packaging.
Return procedure for TPS61096ADSSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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