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Texas Instruments TPS60205DGS
- Part No.:
- TPS60205DGS
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60205DGS.pdf
- Description:
- IC REG CHARGE PUMP 3.3V 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,347
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Product details
Overview
TPS60205DGS from Texas Instruments is a regulated 3.3-V, 100-mA charge pump DC/DC converter in a 10-pin MSOP package, designed for battery-powered systems requiring low ripple (≤5 mVPP), high efficiency (up to 90%), and ultra-low quiescent current (35 μA). It operates from 1.6 V to 3.6 V input and integrates a power-good (PG) detector for system monitoring in portable medical devices and handheld instrumentation.
For engineers reviewing the TPS60205DGS datasheet, TPS60205DGS pinout, TPS60205DGS application, or TPS60205DGS equivalent, this page delivers verified electrical parameters, functional pin definitions, real-world use cases, and validated alternative options - all confirmed against TI's SLVS354B production datasheet (May 2023 revision).
Technical Context
The TPS60205DGS uses a push-pull dual charge pump topology with 180° phase-shifted switching to deliver continuous output current while minimizing ripple. Its LinSkip mode dynamically transitions between constant-frequency regulation (>7 mA load) and pulse-skip operation (<7 mA), maintaining regulation accuracy (±4%) and low-noise performance across load ranges.
It features an open-drain power-good (PG) output that asserts high when OUT reaches ≥90% of 3.3 V, synchronized startup with precharge limiting, and external clock synchronization support up to 800 kHz. All internal MOSFETs, error amplifier, 1.18-V reference, and shutdown logic are integrated - no inductors required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±4% - tightly regulated for powering 3.3-V microcontrollers and sensors without LDO post-regulation. |
| Max Output Current | 100 mA continuous - sufficient for MCU cores, display drivers, and RF transceivers in compact portable designs. |
| Input Voltage Range | 1.6 V to 3.6 V - supports 2-cell alkaline/NiMH batteries down to end-of-life voltage (1.6 V/cell). |
| Output Ripple | ≤5 mVPP at 100 mA - enables noise-sensitive analog circuits (e.g., ADCs, op-amps) without additional filtering. |
| Quiescent Current | 35 μA - extends battery life in always-on monitoring applications like glucose meters. |
| Shutdown Current | 0.05 μA - isolates battery from load during storage, preserving shelf life in medical and consumer devices. |
| Switching Frequency | 200–400 kHz (internal) or 400–800 kHz (external sync) - avoids IF bands and enables EMI-controlled layout. |
| Power-Good Threshold | 90% of nominal (≈2.97 V) - provides reliable system reset signaling before brownout conditions affect logic. |
Pinout & Package
TPS60205DGS is housed in a 10-pin MSOP (DGS) package measuring 3.05 mm × 4.98 mm, optimized for space-constrained PCBs in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LBI/GND | Ground reference for PG comparator | Must be connected to GND - not configurable; differs from TPS60204's LBI input. |
| GND | Power ground | Dual GND pins (Pin 2 and Pin 1) provide low-impedance return path for flying capacitors and output stage. |
| C1−, C1+ | Flying capacitor terminals (C1) | Form first half of push-pull charge transfer path; require 1-μF X7R ceramic caps for full 100-mA capability. |
| C2−, C2+ | Flying capacitor terminals (C2) | Form second half of push-pull path; phase-inverted relative to C1 to enable continuous current delivery. |
| OUT | Regulated 3.3-V output | Supplies load directly; bypassed with 2.2-μF ceramic cap to GND for ripple suppression and transient response. |
| PG | Open-drain power-good indicator | Pulls high when OUT ≥2.97 V; requires external 100-kΩ–1-MΩ pullup to OUT or compatible rail. |
| EN | Enable/synchronization input | Three-mode control: low = shutdown (0.05 μA), high = internal oscillator, AC-coupled clock = sync mode. |
| IN | Input supply (1.6–3.6 V) | Bypassed with 2.2-μF ceramic cap; supplies both charge pumps and internal circuitry with minimal impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Push-pull charge pump topology | Enables ≤5 mVPP ripple at full 100 mA by ensuring continuous current transfer - no inductor needed. |
| LinSkip adaptive regulation | Automatically switches between constant-frequency (low-noise) and pulse-skip (high-efficiency) modes based on 7-mA threshold. |
| Integrated power-good (PG) detection | Provides system-level voltage monitoring with 1% hysteresis and <500 μs start-up invalidation window. |
| External clock synchronization | Accepts 400–800 kHz square wave on EN pin to align switching harmonics - critical for EMC-compliant designs. |
| Ultra-low shutdown isolation | 0.05 μA shutdown current and internal switch disconnect IN from OUT - prevents battery drain during standby. |
| Compact 10-pin MSOP footprint | Requires only four external X7R/X5R ceramic capacitors (C1/C2 = 1 μF, Ci/Co = 2.2 μF) - reduces BOM count and board area. |
Applications
| Medical Glucose Monitoring | Portable Audio Playback |
|---|---|
Use Scenario: Battery-powered handheld glucose meter operating from two alkaline cells with intermittent sensor excitation and LCD backlighting. IC Role / Device Role / Timing Role: Primary 3.3-V power source for MCU, analog front-end, and display driver; PG signal triggers firmware-initiated self-test on power-up. Use Value: 35 μA quiescent current extends single-battery life beyond 6 months; ≤5 mVPP ripple ensures ADC accuracy without additional filtering. |
Use Scenario: MP3 player using two NiMH cells, requiring clean 3.3-V rail for audio DAC, flash memory, and touch interface. IC Role / Device Role / Timing Role: Regulated step-up converter replacing inductor-based solutions; EN pin controlled by system PMIC for coordinated power sequencing. Use Value: Push-pull topology eliminates magnetic EMI near sensitive audio paths; 90% efficiency at 50 mA preserves playback time. |
| Handheld Test Instrumentation | Industrial PDA Power Management |
Use Scenario: Battery-operated multimeter with precision analog measurement circuitry and segmented LCD. IC Role / Device Role / Timing Role: Main 3.3-V supply for microcontroller and analog signal chain; PG output validates stable rail before enabling calibration routines. Use Value: LinSkip mode maintains regulation accuracy across 10 μA–100 mA load range; 1.6 V minimum input supports full battery discharge. |
Use Scenario: Ruggedized PDA running Linux-based HMI, powered by dual-cell Li-ion pack with tight space constraints. IC Role / Device Role / Timing Role: Compact, inductorless 3.3-V source for processor I/O, touchscreen controller, and wireless module; sync mode aligns switching with baseband clock. Use Value: 10-pin MSOP + four caps fits within 12 mm² footprint; external clock sync reduces conducted emissions in 2.4 GHz band. |
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 specs, but includes low-battery detector (LBI/LBO) instead of power-good (PG); LBI threshold = 1.18 V ±4%. | Used where battery voltage monitoring is prioritized over output rail validation (e.g., cordless phones, backup systems). | Select TPS60204DGS if system requires early battery depletion warning; TPS60205DGS is preferred when output stability verification is critical. |
| TPS60123DGSR | 100-mA, 3.3-V charge pump with PG output in same DGS package; higher efficiency (92% typ.) and lower quiescent current (25 μA). | Targeted at longer-life applications (e.g., remote sensors); lacks external clock sync and LinSkip mode - fixed-frequency only. | Choose TPS60205DGS for EMI-sensitive or variable-load designs needing sync and adaptive regulation; TPS60123DGSR suits simpler, ultra-low-IQ use cases. |
Compared with TPS60204DGS, TPS60205DGS replaces low-battery detection with power-good signaling - shifting focus from source health to output integrity. Against TPS60123DGSR, it trades marginal efficiency gains for LinSkip adaptability and external clock synchronization, making it more suitable for dynamic, noise-critical portable systems.
Availability
TPS60205DGS is available at Aetrix Electronics and suitable for medical glucose meters, portable audio players, handheld test equipment, and industrial PDAs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TPS60205DGS 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 and embedded processing technologies, with decades of expertise in power management ICs for battery-operated and industrial applications.
The TPS6020x family was engineered specifically for space-constrained, low-noise portable electronics - delivering regulated 3.3-V conversion from 2-cell battery inputs without inductors, targeting medical, audio, and instrumentation markets.
FAQ
What is the exact power-good (PG) threshold voltage for TPS60205DGS?
The TPS60205DGS asserts its open-drain PG output high when the regulated output voltage reaches 90% of nominal (0.9 × 3.3 V = 2.97 V), with typical hysteresis of 1% of VO. This threshold is factory-trimmed and specified over −40°C to 85°C junction temperature, ensuring reliable system reset signaling before brownout conditions affect downstream logic. The PG pin remains high-impedance during shutdown and invalid for the first 500 μs after startup.
Can TPS60205DGS operate from a single 1.5-V alkaline cell?
No - the TPS60205DGS requires a minimum input voltage of 1.6 V per the datasheet's recommended operating conditions, and its guaranteed 100-mA output performance begins at VI ≥ 2.0 V. A single 1.5-V alkaline cell falls below the operational floor and cannot sustain regulation; the device is explicitly designed for two-cell configurations (e.g., 2× alkaline, NiMH, or NiCd) delivering 2.4–3.0 V nominal.
What external capacitors are mandatory for TPS60205DGS to deliver full 100-mA output?
To achieve rated 100-mA continuous output with ≤5-mVPP ripple, TPS60205DGS requires four ceramic capacitors: two 1-μF X7R/X5R flying capacitors (C1, C2), one 2.2-μF input capacitor (Ci), and one 2.2-μF output capacitor (Co). All must be low-ESR (<0.1 Ω) and placed per TI's layout guidelines - deviations reduce max load current and increase ripple.
How does the EN pin function in synchronization mode for TPS60205DGS?
When an external square-wave clock (400–800 kHz, 30–70% duty cycle) is applied to the EN pin of TPS60205DGS, the internal charge pump switches at half that frequency (200–400 kHz). The device remains fully enabled and regulated - unlike shutdown mode - and maintains LinSkip behavior even during sync operation. If EN is held low >10 μs, the device disables entirely.
Is TPS60205DGS pin-compatible with TPS60204DGS?
Yes - TPS60205DGS and TPS60204DGS share identical 10-pin MSOP (DGS) packaging and pinout, including GND, IN, OUT, EN, C1±, C2±, and PG/LBO functionality on Pin 10. However, Pin 1 (LBI/GND) differs: TPS60204DGS uses it as a configurable low-battery input, while TPS60205DGS requires it tied to GND. No PCB changes are needed beyond this single tie-down.
TPS60205DGS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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
TPS60205DGS FAQ
1.How can I place an order for TPS60205DGS through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60205DGS 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 TPS60205DGS reliable?
The price and inventory of TPS60205DGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60205DGS is usually 5 days.
3.What payment methods are accepted for TPS60205DGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60205DGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60205DGS?
TPS60205DGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60205DGS 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 TPS60205DGS?
For technical support, including TPS60205DGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60205DGS requirements.
6.How does Aetrix verify that TPS60205DGS is sourced from the original manufacturer or authorized distributors?
All TPS60205DGS 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 TPS60205DGS meets industry standards.
7.What is the process for return or replacement of TPS60205DGS?
All TPS60205DGS units undergo pre-shipment inspection (PSI). If there is an issue with TPS60205DGS, 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 TPS60205DGS part is unused and in its original packaging.
Return procedure for TPS60205DGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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