Texas Instruments TPS65000RTER

Overview

TPS65000RTER from Texas Instruments is a single-chip power management IC integrating a 600-mA step-down converter, dual 300-mA low-dropout regulators (LDO1/LDO2), spread-spectrum clock generation, and power-good monitoring - all in a 3-mm × 3-mm 16-pin WQFN package. It operates from 2.3 V to 6 V input, delivers adjustable DC-DC output (0.6 V to V_INDCDC), fixed or adjustable LDO outputs, and supports automatic PFM/PWM mode transition for efficiency optimization across load ranges. It is used in embedded processor power rails and portable media players requiring compact, multi-rail PMIC solutions.

For engineers reviewing the TPS65000RTER datasheet, TPS65000RTER pinout, TPS65000RTER application, or TPS65000RTER equivalent, key selection criteria include its 2.25-MHz fixed switching frequency, 44.7°C/W junction-to-ambient thermal resistance, integrated SSCG for EMI reduction, separate enable/control pins for each regulator, and compatibility with standard 2.2-μH inductors and 10-μF output capacitors.

Technical Context

The TPS65000RTER implements a synchronous buck converter with internal high-side (240–480 mΩ) and low-side (185–380 mΩ) MOSFETs, operating at 2.25 MHz nominal frequency with spread-spectrum modulation active in PWM mode. Its dual LDOs feature independent VIN inputs (1.6–6 V), adjustable output via external feedback resistors, and 370-mV dropout at 300 mA.

Power sequencing is managed through dedicated EN_DCDC, EN_LDO1, and EN_LDO2 pins, while PG monitors regulation status of enabled rails. The device lacks supply voltage supervisor (SVS) circuitry - a feature exclusive to TPS65001/TPS650061 variants - and uses MODE pin control for forced-PWM or auto-transition operation.

Key Specifications

Pinout & Package

TPS65000RTER is housed in a 3.00 mm × 3.00 mm, 16-pin WQFN package (RTE) with exposed thermal pad. Pin assignment follows TI's standardized 16-pin layout for the TPS65000 family.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar power management applications.

Compared with TPS65000RTER, TPS650001RTER trades adjustability for reduced component count and tighter DC-DC tolerance (±1%), while TPS650003RTER reassigns fixed outputs to serve different SoC voltage domains - neither offers SVS or 1-A DC-DC capability found in TPS650061.

Availability

TPS65000RTER is available at Aetrix Electronics and suitable for smartphone baseband power, embedded processor core rails, and portable media player audio biasing requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TPS65000RTER 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 IC design.

The TPS65000 family was engineered for portable and battery-powered applications demanding high integration, small footprint, and adaptive efficiency - targeting smart phones, PDAs, and handheld computing platforms where thermal and space constraints dominate.

FAQ

What is the maximum supported inductor value for the TPS65000RTER DC-DC converter?

The TPS65000RTER is optimized for 1.5–3.3 μH inductors, with 2.2 μH specified as nominal in the datasheet. Using values outside this range risks instability or degraded transient response. The 2.25-MHz switching frequency and internal MOSFET R_DS(on) require low-inductance, high-frequency chokes - standard 2.2-μH shielded power inductors with ≥300-mA saturation current are recommended. Larger inductors increase rise/fall times and reduce light-load efficiency in PFM mode.

Does the TPS65000RTER include a supply voltage supervisor (SVS) function?

No, the TPS65000RTER does not include a supply voltage supervisor. SVS functionality - including manual reset (MR), reset output (RST), and adjustable reset threshold/timing - is exclusive to the TPS65001 and TPS650061 variants, which use the 20-pin RUK package. The TPS65000RTER retains all other features: DC-DC converter, dual LDOs, SSCG, and PG monitoring - but omits SVS circuitry to reduce cost and pin count.

How is the DC-DC output voltage set on the TPS65000RTER?

The TPS65000RTER DC-DC output voltage is set externally using a resistor divider from VDCDC to AGND, connected to the FB_DCDC pin. With a 0.6-V internal reference, the output follows V_OUT = 0.6 × (1 + R1/R2). For example, R1 = 301 kΩ and R2 = 100 kΩ yields 1.8 V. The datasheet specifies ±1.5% accuracy in PWM mode and recommends 0.1% tolerance resistors for precision applications. No internal DAC or register programming is involved.

Can the TPS65000RTER operate with a 1.8-V input supply?

No, the TPS65000RTER requires a minimum 2.3-V input on the VINDCDC pin for DC-DC operation. While its LDOs accept down to 1.6 V on VINLDO1/VINLDO2, the DC-DC converter will not start or regulate below 2.3 V due to internal UVLO (1.72–1.82 V threshold with hysteresis). Attempting 1.8-V operation results in undervoltage lockout - the device remains in shutdown with EN_DCDC inactive and PG in Hi-Z state.

What is the thermal pad connection requirement for the TPS65000RTER WQFN package?

The exposed thermal pad on the TPS65000RTER must be soldered to a solid copper pour connected to PGND - not left floating or tied to AGND. TI specifies this pad as part of the PGND net for both thermal conduction and low-impedance power return. Minimum recommended solder stencil aperture is 80% coverage; thermal vias (≥4×0.3-mm diameter) should connect the pad to inner-layer ground planes. Failure to properly attach the thermal pad limits power dissipation to ≤148 mW at 85°C ambient.