Texas Instruments TPS60211DGSR

Overview

TPS60211DGSR from Texas Instruments is a regulated 3.3-V, inductorless charge-pump DC/DC converter optimized for battery-powered systems. It accepts 1.6–3.6-V input (e.g., two alkaline/NiMH cells or one Li-MnO₂ coin cell), delivers ≥100 mA continuous output current at 3.3 V ±4%, achieves <5-mV_PP ripple via push-pull topology, and operates with 35-µA quiescent current - enabling use in MSP430 microcontroller power rails and portable medical devices.

For engineers reviewing the TPS60211DGSR datasheet, TPS60211DGSR pinout, TPS60211DGSR application, or TPS60211DGSR equivalent, key selection criteria include its power-good detector (PG), ultra-low 2-µA snooze-mode current, 400-kHz max internal switching frequency, synchronization capability to external clocks up to 800 kHz, and compatibility with only four ceramic capacitors in a space-constrained 10-pin MSOP package.

Technical Context

The TPS60211DGSR implements a dual single-ended charge-pump architecture operating in 180° push-pull phase to ensure continuous charge transfer, eliminating the high ripple typical of conventional charge pumps. Its regulation uses linskip mode - seamlessly transitioning between constant-frequency linear-regulation (>7 mA load) and pulse-skip mode (<7 mA) - maintaining tight output voltage control while minimizing quiescent consumption.

It integrates a dedicated power-good (PG) open-drain output that asserts when OUT reaches ≥91% of nominal (≈3.0 V), with hysteresis and 100-kΩ–1-MΩ pullup support. The SNOOZE pin enables three distinct operational states: normal (internal oscillator), synchronized (external clock), and snooze (2-µA I_Q, 2-mA max load, ±6% V_OUT tolerance).

Key Specifications

Pinout & Package

TPS60211DGSR is housed in a 10-pin MSOP (DGS) package - 3.0 mm × 3.0 mm × 1.0 mm, thermally enhanced with exposed pad (not electrically connected). Pin numbering follows standard MSOP orientation (pin 1 top-left, counterclockwise).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar charge-pump DC/DC converter applications.

Compared with TPS60211DGSR, TPS60210DGSR offers identical regulation and package but substitutes PG for LBO functionality - requiring schematic changes to implement battery monitoring. The MAX17222ETA+ provides broader input range and higher current but lacks the integrated snooze mode and precise PG timing critical for low-power microcontroller sequencing.

Availability

TPS60211DGSR is available at Aetrix Electronics and suitable for portable medical instrumentation, ultra-low-power microcontroller systems, backup-battery boost converters, and MP3 audio players requiring stable component supply, long-lifecycle availability, and consistent parametric performance across production batches.

Supply support for TPS60211DGSR 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 ICs - with decades of expertise in high-efficiency, low-noise DC/DC conversion for portable electronics.

The TPS6021x family was designed specifically for space-constrained, battery-powered applications demanding inductorless, low-EMI, and ultra-low-quiescent power conversion - targeting medical, wearables, and ultra-low-power MCU platforms.

FAQ

What is the key functional difference between TPS60211DGSR and TPS60210DGSR?

The TPS60211DGSR integrates a power-good (PG) detector on pin 10, asserting high when V_OUT reaches ≥91% of 3.3 V. In contrast, TPS60210DGSR features a low-battery detector (LBO) on the same pin, pulling low when input voltage falls below a user-defined threshold. Both share identical regulation, 100-mA output, and pinout - but PG and LBO serve mutually exclusive system functions and require different external circuitry.

Does TPS60211DGSR require an inductor in its application circuit?

No, the TPS60211DGSR is an inductorless charge-pump DC/DC converter. It uses two flying capacitors (C1 and C2) and an output capacitor (C_O) - all ceramic - to generate a regulated 3.3-V output. This eliminates magnetic components, reduces EMI, and simplifies PCB layout compared to inductive boost converters.

What is the minimum input voltage at which TPS60211DGSR maintains regulation?

The TPS60211DGSR maintains regulated 3.3-V output down to an input voltage of 1.6 V, as confirmed in the recommended operating conditions and startup description. It begins operation at 1.6 V and sustains regulation across the full 1.6–3.6-V range with load currents up to 100 mA - making it suitable for deeply discharged alkaline or NiMH cells.

How does the SNOOZE pin control operating modes in TPS60211DGSR?

The SNOOZE pin on TPS60211DGSR enables three distinct modes: logic-low holds the device in snooze mode (2-µA I_Q, 2-mA max load, ±6% V_OUT); logic-high activates normal operation using the internal oscillator; and an AC signal (400–800 kHz) synchronizes switching to minimize EMI harmonics. Mode transitions are seamless and require no external sequencing.

Can TPS60211DGSR be used with ceramic output capacitors smaller than 2.2 µF?

The datasheet specifies a minimum 2.2-µF ceramic output capacitor (X5R/X7R) for stable operation at full 100-mA load. Using smaller values degrades load transient response, increases output ripple beyond 5 mV_PP, and may cause regulation loss under dynamic loads. For 10–25-mA applications, 1-µF is acceptable per Table 2 - but 2.2 µF remains the validated baseline for TPS60211DGSR design.