Texas Instruments TPS2150IPWPR

Overview

TPS2150IPWPR from Texas Instruments is a dual-channel USB power management IC integrating a 5-V high-side power switch and an adjustable 0.9–3.3-V/250-mA LDO regulator in a single HTSSOP-14 PowerPAD™ package. It delivers dual-current-limit switching (100 mA → 1800 mA), undervoltage lockout, power-good signaling, and independent enable control - designed specifically for high-power USB peripherals requiring robust inrush control and DSP core/I/O voltage sequencing.

For engineers reviewing the TPS2150IPWPR datasheet, TPS2150IPWPR pinout, TPS2150IPWPR application, or TPS2150IPWPR equivalent, this device supports critical design tasks including USB 2.0-compliant peripheral power delivery, multi-rail sequencing with independent LDO/SW control, thermal-safe current limiting, and programmable output voltage setting via ADJ pin resistor divider.

Technical Context

The TPS2150IPWPR implements a dual-threshold current-limit architecture: initial 100 mA soft-start limits inrush into large output capacitance, then transitions to 1800 mA overload protection when SW_OUT reaches ≥93% of SW_IN. Its integrated 40 mΩ (typ) N-channel MOSFET operates as a high-side switch with active-high SW_EN (internal pulldown) and open-drain SW_PLDN for controlled discharge.

The adjustable LDO uses an internal 0.8-V reference at ADJ to set VOUT from 0.9 V to 3.3 V, features 0.5 V max dropout at 250 mA, and provides independent LDO_EN, LDO_PG (open-drain), and LDO_PLDN for precise core rail control. Both channels include dedicated UVLO (SW_IN: 4.1 V rising, LDO_IN: 2.7 V rising), thermal shutdown (125°C low-trip, 155°C high-trip), and CMOS/TTL-compatible logic interfaces.

Key Specifications

Pinout & Package

TPS2150IPWPR is housed in a 14-pin HTSSOP (PWP) package with exposed thermal pad (PowerPAD™), optimized for thermal dissipation in compact USB peripheral designs. Pin numbering follows standard top-view layout with pins 1–7 on top row (left-to-right), pins 8–14 on bottom row (right-to-left).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-rail USB power management applications.

Compared with TPS2141IPWPR, the TPS2150IPWPR offers voltage-programmable LDO output essential for sub-3.3-V DSP cores, while TPS2151IPWPR provides identical performance with broader application documentation - making TPS2150IPWPR optimal for USB-specific designs requiring flexible core rail generation.

Availability

TPS2150IPWPR is available at Aetrix Electronics and suitable for USB peripheral development, DSP power sequencing, and industrial embedded systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TPS2150IPWPR 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 solutions with decades of USB interface and power IC expertise.

The TPS21xx family was engineered specifically for USB 1.0/2.0-compliant peripheral power delivery, combining high-side switching and adjustable LDO regulation to simplify multi-rail designs while meeting strict inrush and thermal safety requirements.

FAQ

What is the maximum continuous output current supported by the TPS2150IPWPR switch channel?

The TPS2150IPWPR switch channel supports 500 mA continuous current at TJ = 110°C, with a typical on-resistance of 40 mΩ at 25°C. Its dual-current-limit architecture allows brief 1800 mA overload capability during fault conditions, but sustained operation above 500 mA requires careful thermal design using the PowerPAD™ thermal pad and PCB copper area per the dissipation rating table.

How does the TPS2150IPWPR implement power-good signaling for the LDO output?

The TPS2150IPWPR uses LDO_PG (Pin 8) as an open-drain output that pulls low when LDO_OUT falls below 94% of its programmed setpoint. This signal requires an external pullup resistor to a valid rail and incorporates a 150-µs falling-edge deglitch filter to reject transients. It enables reliable sequencing of downstream logic powered by the LDO output.

Can the TPS2150IPWPR be used with a 3.3-V input instead of 5 V for the switch channel?

No - the TPS2150IPWPR is specifically configured for 5-V USB bus operation: its switch UVLO rising threshold is 4.1 V, and recommended VI(SW_IN) range is 4.1 V to 5.5 V. For 3.3-V switch applications, TI specifies the TPS2140/TPS2150 variants (e.g., TPS2140IPWPR), which have lower 2.7-V UVLO and 3.3-V nominal operation.

What external components are required to set the LDO output voltage on the TPS2150IPWPR?

To set the LDO output voltage on the TPS2150IPWPR, connect a resistor divider between LDO_OUT (Pin 11) and GND, with the ADJ pin (Pin 9) connected to the center node. The output voltage is calculated as VOUT = 0.8 V × (1 + R1/R2), where R1 connects to LDO_OUT and R2 connects to GND. A 4.7-µF minimum output capacitor with 200 mΩ–8.5 Ω ESR is also mandatory.

Does the TPS2150IPWPR provide reverse current blocking on the switch output?

Yes - the TPS2150IPWPR's integrated N-channel MOSFET is configured as a high-side switch with inherent reverse current blocking. When disabled, it prevents current flow from SW_OUT back to SW_IN, with reverse leakage current specified at ≤10 µA at 5.5 V - ensuring isolation during hot-plug or fault conditions.