Texas Instruments TPS61030PWPR

Overview

TPS61030PWPR 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 TPS61030PWPR datasheet, TPS61030PWPR pinout, TPS61030PWPR application, or TPS61030PWPR equivalent, key selection criteria include its 4-A switch current limit, Power Save mode operation down to 20-µA quiescent current, QFN-16 (4 mm × 4 mm) package with PowerPAD™ thermal pad, and support for external output voltage adjustment via FB pin.

Technical Context

The TPS61030PWPR implements a fixed-frequency, multiple feed-forward PWM controller that monitors VBAT, VOUT, and NMOS switch voltage drop to directly adjust duty cycle-bypassing slow error-amplifier loop response. Peak current sensing limits switch current to 4000 mA typical, while internal temperature protection triggers at 140°C with 20°C hysteresis.

It integrates synchronous rectification using complementary N- and P-channel MOSFETs, eliminating Schottky losses and enabling 96% efficiency. Dual ground architecture separates PGND (power-switch source) from GND (control reference), requiring single-point PCB connection near GND to prevent ground shift under high current.

Key Specifications

Pinout & Package

TPS61030PWPR is housed in a thermally enhanced 4 mm × 4 mm QFN-16 package (PWP) with exposed PowerPAD™ thermal pad requiring solder connection to PGND plane for optimal heat dissipation and electrical performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS61030PWPR, TPS61031PWPR removes FB flexibility for simpler 5-V-only use, while TPS61291DRVR trades monitoring and robustness for extreme low-power and miniaturization - neither is pin-compatible, but both serve adjacent portable power niches.

Availability

TPS61030PWPR is available at Aetrix Electronics and suitable for portable medical sensors, wireless headsets, handheld scanners, and industrial IoT edge nodes requiring stable component supply across extended production lifecycles.

Supply support for TPS61030PWPR 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 90 years of innovation in high-reliability electronic components.

The TPS6103x product line was engineered specifically for battery-powered portable electronics demanding high efficiency, compact size, and intelligent power supervision - targeting MP3 players, PDAs, and modern wearables.

FAQ

What is the maximum output current capability of the TPS61030PWPR under real-world conditions?

The TPS61030PWPR delivers up to 1000 mA at 5 V when supplied from ≥2.4 V input, verified per TI SLUS534G datasheet Figure 1 and Table 8.5. At lower inputs (e.g., 1.8 V), maximum output current drops to ~600 mA due to switch current limit (4000 mA peak) and duty-cycle constraints. Thermal derating applies above 85°C ambient; the QFN-16 PowerPAD™ package enables sustained 1-A operation with proper PCB copper area.

How does the TPS61030PWPR implement load disconnect during shutdown?

The TPS61030PWPR uses an internal isolation circuit that actively opens the path between VBAT and VOUT when EN is pulled low. Unlike conventional boost converters where the PMOS body diode conducts backward current, this design disconnects the cathode of the high-side PMOS from its source, preventing any backfeed. As confirmed in Section 10.3.2, this reduces shutdown current to 0.1–1 µA and eliminates battery drain during storage - no external MOSFET is needed.

Can the TPS61030PWPR be synchronized to an external clock, and what are the valid frequency ranges?

Yes, the TPS61030PWPR accepts an external clock signal on the SYNC pin to force operation at a user-defined frequency. Per Section 8.5 and 10.4.3, the valid synchronization range is 500–700 kHz - ±20% of the nominal 600-kHz internal oscillator. The input clock must have 30–70% duty cycle and logic-level amplitude (0 V / VBAT). This feature enables EMI reduction through frequency dithering or alignment with system timing domains.

What is the exact function of the LBI and LBO pins on the TPS61030PWPR, and how are they configured?

The LBI pin is a high-impedance analog input referenced to an internal 500-mV comparator threshold with 10-mV hysteresis. A resistor divider from VBAT to GND sets the battery depletion voltage (e.g., 3.0 V → R1/R2 = 5:1). When LBI falls below 500 mV, the open-drain LBO pin pulls low - requiring an external pull-up resistor (typically 1 MΩ to VOUT). As detailed in Section 10.4.4, LBO is inactive (high-Z) when EN = low.

Does the TPS61030PWPR require special PCB layout considerations for thermal performance?

Yes - the TPS61030PWPR's QFN-16 PWP package includes an exposed PowerPAD™ thermal pad that must be soldered to a dedicated PGND copper pour. Per Section 8.4, RθJC(bot) = 2.2°C/W depends on this connection. TI recommends minimum 4×4 mm thermal pad with ≥4 thermal vias (0.3-mm diameter, spaced ≤1 mm apart) connecting to inner/ground planes. Separating PGND and GND traces - and joining them at a single point near Pin 11 - is mandatory to prevent noise coupling into control circuitry.