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Texas Instruments TPS60205DGSG4
- Part No.:
- TPS60205DGSG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60205DGSG4.pdf
- Description:
- IC REG CHARGE PUMP 3.3V 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,170
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Product details
Overview
TPS60205DGSG4 from Texas Instruments is a regulated 3.3-V, 100-mA charge pump DC/DC converter optimized for low-ripple, inductorless power conversion in space-constrained battery-powered systems. It operates from 1.6 V to 3.6 V input, delivers ≤5 mVPP output ripple via push-pull topology, integrates a power-good (PG) detector, and achieves up to 90% efficiency at 50 mA with only 35 μA quiescent current - enabling long runtime in portable medical devices and handheld instrumentation.
For engineers reviewing the TPS60205DGSG4 datasheet, TPS60205DGSG4 pinout, TPS60205DGSG4 application, or TPS60205DGSG4 equivalent, this page provides verified technical context, validated pin functions, confirmed PG detector behavior, real-world load transient performance, and direct alternatives with documented functional differences - all specific to the TPS60205DGSG4 variant in 10-pin MSOP (DGS) package.
Technical Context
The TPS60205DGSG4 implements a dual single-ended charge pump operating in 180° push-pull phase alignment to sustain near-constant output current and minimize ripple. Its LinSkip mode dynamically transitions between constant-frequency linear regulation (>7 mA load) and pulse-skip operation (<7 mA), maintaining regulation while optimizing efficiency across load range.
It features an open-drain power-good (PG) output that asserts high when OUT reaches ≥90% of 3.3 V (i.e., ≥2.97 V), with hysteresis of 1% of nominal output. The EN pin supports three modes: shutdown (EN = low), internal oscillator (EN = high), or external clock synchronization (EN driven by 400–800 kHz signal), with internal switching frequency fixed at 200–400 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 3.3 V ±4% (3.17–3.47 V); regulated across 1.6–3.6 V input and 0–100 mA load. |
| Max output current | 100 mA continuous at VI ≥ 2 V; supports full-load start-up into 33 Ω or 66 Ω. |
| Output ripple | ≤5 mVPP at 100 mA; achieved via push-pull topology and 1 μF flying capacitors. |
| Quiescent current | 35 μA typical at no load; enables ultra-low standby power in always-on portable systems. |
| Shutdown current | 0.05 μA typical; isolates battery from load, extending shelf life in storage. |
| PG trip threshold | 0.87×VO to 0.95×VO (≈2.87–3.14 V); active-high open-drain output with 1% hysteresis. |
| Switching frequency | 200–400 kHz (internal); synchronizable to 400–800 kHz external clock on EN pin. |
Pinout & Package
TPS60205DGSG4 is housed in a 10-pin MSOP (DGS) package measuring 3.05 mm × 4.98 mm, with exposed thermal pad (not electrically connected). Pin numbering follows standard DGS top-view orientation (pin 1 at top-left corner, counterclockwise).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LBI/GND | Ground reference | Must be connected to system GND; not functional as low-battery input (TPS60204-only feature). |
| GND | Power ground | Primary return path for input, output, and internal circuits; requires low-impedance PCB connection. |
| C1− | Flying capacitor negative | Connects to negative terminal of 1-μF ceramic flying capacitor C1; critical for charge transfer timing. |
| C1+ | Flying capacitor positive | Connects to positive terminal of C1; forms first half of push-pull charge pump stage. |
| OUT | Regulated output | 3.3-V power rail; bypassed to GND with 2.2-μF ceramic capacitor (Co) for ripple suppression. |
| PG | Power-good indicator | Open-drain output; pulled high externally (e.g., to OUT) and goes high when VO ≥ 2.97 V. |
| EN | Enable/control input | Three-mode control: low = shutdown, high = internal oscillator, AC-coupled clock = sync mode. |
| C2− | Flying capacitor negative | Connects to negative terminal of second 1-μF flying capacitor C2; complements C1 in push-pull pair. |
| IN | Input supply | 1.6–3.6 V battery input; bypassed to GND with 2.2-μF ceramic capacitor (Ci) for stability. |
| C2+ | Flying capacitor positive | Connects to positive terminal of C2; completes second half of push-pull charge pump stage. |
Key Features
| Feature | Design Value |
|---|---|
| Inductorless architecture | Eliminates EMI-sensitive magnetics; reduces BOM cost and board area by >40% vs. buck/boost converters. |
| Push-pull charge pump | Enables continuous current delivery and ≤5 mVPP ripple without LC filtering - critical for noise-sensitive analog rails. |
| LinSkip mode | Automatically switches between constant-frequency (low-noise) and pulse-skip (high-efficiency) based on 7 mA load threshold. |
| Integrated power-good detection | Provides system-level power sequencing feedback without external comparators or resistive dividers. |
| Ultra-low shutdown current | 0.05 μA isolation prevents battery drain during storage - extends shelf life in glucose meters and PDA backups. |
Applications
| Medical Instrumentation | Portable Audio Systems |
|---|---|
Use Scenario: Glucose meter powered by two alkaline AA cells requiring stable 3.3-V rail for ADC, LCD, and Bluetooth LE transceiver. IC Role / Device Role / Timing Role: Primary regulated power source; replaces inductor-based DC/DC to meet IEC 60601 EMI limits. Use Value: 35 μA quiescent current extends battery life beyond 6 months; ≤5 mVPP ripple ensures <1 LSB error in 12-bit glucose ADC. |
Use Scenario: MP3 player with dual-cell battery input and 3.3-V audio codec, microcontroller, and flash memory. IC Role / Device Role / Timing Role: Main system supply; powers all digital and analog subsystems from same rail. Use Value: Push-pull topology eliminates audible switching noise in headphone output; 100 mA capacity supports simultaneous playback + USB charging. |
| Handheld Test Equipment | Backup Power Management |
Use Scenario: Battery-powered multimeter with 3.3-V precision op-amps, reference, and display driver. IC Role / Device Role / Timing Role: Low-noise analog supply rail; decoupled from digital switching noise sources. Use Value: LinSkip mode maintains <0.01%/mA load regulation and <0.6%/V line regulation - critical for measurement accuracy. |
Use Scenario: SRAM backup circuit in industrial controller using coin cell to maintain volatile memory during main power loss. IC Role / Device Role / Timing Role: Boost converter generating 3.3 V from 1.6–2.0 V coin cell; activated only during brownout. Use Value: 0.05 μA shutdown current prevents coin cell depletion over 5+ years; PG output signals valid backup voltage to host MCU. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar regulated charge pump applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60204DGS | Same package and electrical specs, but includes low-battery detector (LBI/LBO) instead of PG output. | Used where battery voltage monitoring is required (e.g., PDA low-power warning), not power sequencing. | Select TPS60204DGS if system needs early battery depletion alert; TPS60205DGSG4 if clean power-up confirmation is prioritized. |
| TPS60123DGSR | Higher 100 mA output, same 3.3 V regulation, but adds integrated soft-start and improved efficiency at light loads (25 μA IQ). | Targeted at newer designs needing lower EMI and tighter transient response; requires different capacitor layout. | Choose TPS60123DGSR for next-gen portable instruments; TPS60205DGSG4 remains optimal for cost-sensitive legacy replacements. |
Compared with TPS60204DGS, TPS60205DGSG4 trades low-battery detection for deterministic power-good signaling - simplifying system reset logic. Against TPS60123DGSR, it offers proven field reliability and identical footprint compatibility but lacks soft-start and slightly higher quiescent current.
Availability
TPS60205DGSG4 is available at Aetrix Electronics and suitable for portable medical devices, handheld instrumentation, battery-powered audio systems, and backup power management requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for TPS60205DGSG4 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 battery-efficient power conversion.
The TPS6020x family was designed specifically for space-constrained, low-noise, inductorless DC/DC conversion in portable battery-powered equipment - emphasizing ultra-low quiescent current, minimal EMI, and seamless integration with microcontroller power sequencing.
FAQ
What is the exact power-good (PG) behavior of the TPS60205DGSG4?
The TPS60205DGSG4's PG pin is an open-drain output that remains high-impedance until the regulated 3.3-V output reaches ≥90% of nominal (≥2.97 V), at which point it pulls high via external pullup. It exhibits 1% hysteresis and is invalid for the first 500 μs after startup. This behavior is confirmed in Section 7.6 of the official datasheet and applies exclusively to the TPS60205DGSG4 variant - not shared with TPS60204DGS.
Can the TPS60205DGSG4 operate from a single 1.5-V alkaline cell?
No. The TPS60205DGSG4 requires a minimum input voltage of 1.6 V per the Absolute Maximum Ratings table, and its recommended operating range starts at 1.6 V. A fresh 1.5-V alkaline cell typically delivers ~1.6 V under light load but drops rapidly; sustained operation below 1.6 V risks regulation loss and undefined PG behavior. The device is explicitly specified for two-cell alkaline/NiMH/NiCd inputs (2.0–3.0 V nominal).
Does the TPS60205DGSG4 require external resistors for power-good functionality?
No. Unlike low-battery detectors, the TPS60205DGSG4's power-good function is fully internal and requires only an external pullup resistor (100 kΩ to 1 MΩ) from PG to OUT or another compatible rail ≤3.6 V. No voltage dividers, thresholds, or calibration components are needed - the trip point is factory-trimmed to 90% of nominal output voltage.
How does the TPS60205DGSG4 handle load transients?
The TPS60205DGSG4 maintains ≤30 mV output deviation during 10–100 mA step loads (per Figure 7-10), enabled by its push-pull topology and fast LinSkip mode transition. With 2.2 μF output capacitance, recovery time is <50 μs. This performance is validated in TI's SLVS354B datasheet and makes it suitable for microcontrollers with burst-mode peripherals like BLE radios or ADCs.
Is the TPS60205DGSG4 pin-compatible with other TPS6020x variants?
Yes - all TPS6020x DGS-package variants (including TPS60204DGS, TPS60205DGS, and TPS60205DGSG4) share identical 10-pin MSOP footprints and pinouts. The GND and LBI pins are physically swapped between TPS60204 and TPS60205, but the TPS60205DGSG4 uses the TPS60205 pin mapping: pin 1 = GND (not LBI), pin 10 = PG (not LBO). This ensures mechanical and solder-reflow compatibility across the family.
TPS60205DGSG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.6V
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 100mA
- Frequency - Switching:
- 300kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
TPS60205DGSG4 FAQ
1.How can I place an order for TPS60205DGSG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60205DGSG4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS60205DGSG4 reliable?
The price and inventory of TPS60205DGSG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60205DGSG4 is usually 5 days.
3.What payment methods are accepted for TPS60205DGSG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60205DGSG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60205DGSG4?
TPS60205DGSG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60205DGSG4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS60205DGSG4?
For technical support, including TPS60205DGSG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60205DGSG4 requirements.
6.How does Aetrix verify that TPS60205DGSG4 is sourced from the original manufacturer or authorized distributors?
All TPS60205DGSG4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS60205DGSG4 meets industry standards.
7.What is the process for return or replacement of TPS60205DGSG4?
All TPS60205DGSG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS60205DGSG4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS60205DGSG4 part is unused and in its original packaging.
Return procedure for TPS60205DGSG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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