Texas Instruments TPS61030PWPG4

Overview

TPS61030PWPG4 from Texas Instruments is a synchronous boost DC-DC converter IC designed for single-cell Li-ion or dual/triple-cell alkaline/NiMH battery-powered systems. It delivers up to 1000 mA at 5 V from 1.8-V input, features 96% peak efficiency, 600-kHz fixed-frequency PWM control, and integrated low-battery comparator with 500-mV threshold on LBI pin.

For engineers reviewing the TPS61030PWPG4 datasheet, TPS61030PWPG4 pinout, TPS61030PWPG4 application, or TPS61030PWPG4 equivalent, key selection considerations include its 4-A switch current limit, Power Save mode for light-load efficiency, load disconnect during shutdown, low-EMI antiringing switch, and compatibility with 4 mm × 4 mm QFN-16 (PWP) layout.

Technical Context

The TPS61030PWPG4 implements a fixed-frequency, multiple feedforward PWM controller that monitors input voltage, output voltage, and NMOS switch voltage drop to directly adjust duty cycle-bypassing slow error-amplifier loop for fast transient response. Peak current sensing limits switch current to 4000 mA typical, while internal thermal shutdown activates at 140°C.

It integrates synchronous rectification using complementary N-channel and P-channel MOSFETs, eliminating external Schottky diode losses. A dedicated antiringing switch clamps SW-node ringing in discontinuous conduction mode, reducing radiated EMI. The LBI/LBO circuit provides user-programmable low-battery detection with 10-mV hysteresis and open-drain active-low output.

Key Specifications

Pinout & Package

TPS61030PWPG4 is housed in a thermally enhanced 4 mm × 4 mm QFN-16 package (PWP) with exposed PowerPAD™ soldered to PGND for optimal thermal dissipation. Pin numbering follows standard top-view orientation with Pin 1 at top-left corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar boost converter applications.

Compared with TPS61031PWPR, the TPS61030PWPG4 offers design flexibility via adjustable output but requires two external resistors; compared with TPS61291DRVR, it trades higher integration (LBI/LBO/SYNC) and lower EMI for slightly larger package and lower max switching frequency.

Availability

TPS61030PWPG4 is available at Aetrix Electronics and suitable for portable medical sensors, wireless remote controls, handheld barcode scanners, and industrial data loggers requiring stable component supply with long-term manufacturability and consistent electrical performance.

Supply support for TPS61030PWPG4 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 over 50 years of innovation in energy-efficient power conversion.

The TPS6103x product line was engineered specifically for battery-powered portable electronics requiring high-efficiency step-up conversion from low-voltage primary or rechargeable cells, emphasizing runtime extension, thermal robustness, and system-level integration.

FAQ

What is the maximum output current capability of the TPS61030PWPG4 at 3.3 V output?

The TPS61030PWPG4 delivers up to 1000 mA at 5 V output from a 1.8-V input. At 3.3 V output, maximum continuous current depends on input voltage and thermal conditions: at V_IN = 2.4 V, it sustains ~1.2 A; at V_IN = 1.8 V, derating applies due to duty cycle and thermal limits. Refer to Figure 1 and Figure 3 in the SLUS534G datasheet for exact curves. The TPS61030PWPG4 switch current limit remains 4000 mA regardless of output voltage setting.

Does the TPS61030PWPG4 support synchronization to an external clock signal?

Yes, the TPS61030PWPG4 supports external clock synchronization via the SYNC pin. Applying a square-wave clock with 30–70% duty cycle and frequency within ±20% of 600 kHz (i.e., 480–720 kHz) forces the TPS61030PWPG4 to operate at that external frequency. This enables EMI reduction through frequency dithering or alignment with system timing domains. When SYNC is pulled high, Power Save mode is disabled and fixed-frequency operation resumes.

How is the low-battery detection threshold programmed on the TPS61030PWPG4?

The low-battery detection threshold on the TPS61030PWPG4 is programmed using a resistor divider from VBAT to GND, connected to the LBI pin. With a fixed 500-mV internal comparator threshold and 10-mV hysteresis, selecting R1 and R2 such that V_LBI = V_BAT × R2/(R1 + R2) = 500 mV sets the cutoff voltage. For example, to trigger at 2.8 V, use R1 = 460 kΩ and R2 = 100 kΩ. The TPS61030PWPG4 LBO pin outputs open-drain low when threshold is crossed, requiring an external pullup resistor.

What thermal considerations apply to the TPS61030PWPG4 in the PWP QFN-16 package?

The TPS61030PWPG4 in the PWP package has a junction-to-board thermal resistance (R_θJB) of 12.9°C/W and junction-to-ambient (R_θJA) of 35.5°C/W when mounted on a 2-layer PCB with 1-in² copper pad connected to the PowerPAD™. To maintain T_J ≤ 125°C at full load, ensure ≥ 200 mm² thermal pad area with ≥ 4 thermal vias to inner ground plane. The TPS61030PWPG4 includes overtemperature protection that disables switching above 140°C with 20°C hysteresis.

Can the TPS61030PWPG4 be used with ceramic output capacitors only, or is a tantalum capacitor required?

TPS61030PWPG4 supports full-ceramic output configurations. The datasheet recommends C3 = 220 µF low-ESR tantalum for stability in high-current applications, but modern X7R/X5R ceramics with ≥ 220 µF total capacitance and ≤ 10 mΩ ESR (e.g., parallel 10×22 µF 0805) meet stability and ripple requirements. Ceramic-only designs reduce size, cost, and failure risk-verified in TI's TPS61030 evaluation module (EVM). Ensure layout minimizes trace inductance to avoid instability with high-C_OUT/low-ESR ceramics.