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Texas Instruments TPS60205DGSR
- Part No.:
- TPS60205DGSR
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60205DGSR.pdf
- Description:
- IC REG CHARGE PUMP 3.3V 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,410
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Product details
Overview
TPS60205DGSR from Texas Instruments is a regulated 3.3-V, 100-mA charge pump DC/DC converter 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, and integrates a power-good (PG) detector with 90% nominal output threshold. It is used in handheld medical instruments and portable audio players requiring stable 3.3-V rail generation without magnetic components.
For engineers reviewing the TPS60205DGSR datasheet, TPS60205DGSR pinout, TPS60205DGSR application, or TPS60205DGSR equivalent, this page provides verified technical context, real-world design meaning of specifications, validated pin functions, confirmed alternative options, and supply-chain support details specific to the TPS60205DGSR variant with power-good detection and MSOP-10 packaging.
Technical Context
The TPS60205DGSR uses dual single-ended charge pumps operating in 180° push-pull phase to sustain continuous output current delivery and achieve ≤5 mVPP ripple at full 100 mA load. Its LinSkip mode automatically transitions between constant-frequency regulation (>7 mA load) and pulse-skip operation (<7 mA), maintaining regulation while minimizing quiescent current (35 μA typical).
It implements 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 VO. The EN pin supports three modes: shutdown (EN = low), internal oscillator (EN = high), or external clock synchronization (EN driven with 400–800 kHz square wave), enabling EMI control in sensitive RF environments.
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 - ensures stable logic rail for microcontrollers and sensors. |
| Max output current | 100 mA continuous at VI ≥ 2 V - sufficient for powering ARM Cortex-M0+ MCUs and OLED displays in portable devices. |
| Output ripple | ≤5 mVPP at IO = 100 mA - eliminates need for post-regulation LDOs in noise-sensitive analog signal chains. |
| Quiescent current | 35 μA typical at no load - extends shelf life and runtime in always-on glucose meters and remote sensors. |
| Shutdown current | 0.05 μA - isolates battery from load during storage, preventing >1% annual self-discharge in two-cell alkaline systems. |
| Switching frequency | 200–400 kHz internal; sync-capable up to 800 kHz external - avoids 455-kHz IF band and enables deterministic EMI filtering. |
| Power-good threshold | 90% of VO (2.97 V) with 1% hysteresis - provides reliable system reset signaling for FPGA configuration and MCU brown-out detection. |
Pinout & Package
TPS60205DGSR is housed in a 10-pin MSOP (DGS) package measuring 3.05 mm × 4.98 mm, optimized for high-density PCB layouts in handheld instrumentation and wearables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (LBI/GND) | Low-battery input / Ground tie | Must be connected to GND - unused on TPS60205DGSR; distinguishes it from TPS60204's low-battery comparator input. |
| 2 (GND) | Power ground | Primary return path for flying capacitors C1/C2 and output capacitor Co - requires low-inductance connection to minimize ripple. |
| 3 (C1−) | Flying capacitor C1 negative terminal | Connects to negative side of 1-μF ceramic capacitor - forms half of push-pull charge transfer path. |
| 4 (C1+) | Flying capacitor C1 positive terminal | Connects to positive side of 1-μF ceramic capacitor - alternates conduction with C2 path to reduce ripple. |
| 5 (OUT) | Regulated 3.3-V output | Supplies main system rail; bypassed with 2.2-μF X7R ceramic capacitor to GND - critical for transient response. |
| 6 (PG) | Open-drain power-good output | Pulls high when OUT ≥ 2.97 V; requires external 100-kΩ–1-MΩ pullup to OUT or logic rail - signals system readiness. |
| 7 (EN) | Enable/control input | Three-state control: low = shutdown (0.05 μA), high = internal oscillator, AC-driven = external sync - enables dynamic EMI management. |
| 8 (C2−) | Flying capacitor C2 negative terminal | Connects to negative side of second 1-μF ceramic capacitor - completes complementary push-pull stage. |
| 9 (IN) | Input voltage supply | Accepts 1.6–3.6 V from two alkaline/NiMH cells; bypassed with 2.2-μF ceramic capacitor - stabilizes source impedance. |
| 10 (C2+) | Flying capacitor C2 positive terminal | Connects to positive side of second 1-μF ceramic capacitor - transfers charge in anti-phase to C1 for ripple cancellation. |
Key Features
| Feature | Design Value |
|---|---|
| Push-pull charge pump topology | Enables ≤5 mVPP ripple at 100 mA without inductors - eliminates EMI hotspots and simplifies layout in compact PCBs. |
| LinSkip adaptive regulation | Seamlessly switches between constant-frequency (≥7 mA) and pulse-skip (<7 mA) modes - maintains 3.3 V regulation while optimizing efficiency across load range. |
| Integrated power-good (PG) detector | Open-drain PG output activates at 90% VO with 1% hysteresis - provides deterministic reset timing for microprocessor boot sequences. |
| External clock synchronization | EN pin accepts 400–800 kHz square wave - allows harmonic alignment to avoid interference in RF front-ends and audio codecs. |
| Ultra-low shutdown current | 0.05 μA disconnects battery from load - prevents >1% annual capacity loss in long-storage medical devices. |
Applications
| Handheld Medical Instrumentation | Portable Audio Players |
|---|---|
Use Scenario: Powering glucose meter mainboard with LCD, sensor interface, and BLE radio from two AA alkaline cells. IC Role / Device Role / Timing Role: Generates clean 3.3-V rail for ADC reference, microcontroller core, and RF transceiver - replaces inductor-based converters to meet IEC 60601 leakage limits. Use Value: ≤5 mVPP ripple ensures <1 LSB error in 12-bit glucose sensor ADC; 0.05 μA shutdown preserves battery shelf life beyond 2 years. |
Use Scenario: Supplying 3.3-V logic and audio codec in MP3 player powered by two NiMH cells. IC Role / Device Role / Timing Role: Regulated step-up converter with PG signaling - coordinates system power-up sequence and prevents digital clipping during battery voltage sag. Use Value: PG output triggers MCU reset before audio DAC initialization; 90% VO threshold ensures stable clock domain switching at 2.97 V. |
| Battery-Powered Microprocessor Systems | Backup-Battery Boost Converters |
Use Scenario: Providing primary 3.3-V supply for ARM Cortex-M0+ MCU and peripherals in industrial sensor node. IC Role / Device Role / Timing Role: Inductorless DC/DC converter with EN-controlled sync mode - reduces EMI in proximity to 2.4-GHz wireless modules. Use Value: External clock sync aligns switching harmonics away from Bluetooth LE channels; 35 μA quiescent current enables >5-year battery life. |
Use Scenario: Boosting backup coin cell (CR2032) to 3.3 V for RTC and SRAM retention during main power failure. IC Role / Device Role / Timing Role: Low-quiescent, high-efficiency charge pump - sustains memory retention with minimal coin cell drain. Use Value: 0.05 μA shutdown current extends CR2032 life to >10 years; 100 mA peak capability handles RTC write surges without voltage droop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar regulated charge pump applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60204DGSR | Features low-battery detector (LBI/LBO) instead of power-good (PG); LBI input requires external resistor divider; LBO is open-drain active-low. | Suitable where battery voltage monitoring is required (e.g., PDA low-power warning), not where system reset timing depends on output regulation. | Select TPS60204DGSR only if low-battery alert functionality is needed; pinout differs at Pin 1 (LBI vs GND tie) and Pin 10 (LBO vs PG). |
| TPS60123DGSR | Higher 200-mA output current, same 3.3-V output and PG function; larger 10-pin MSOP package but identical footprint; requires same four capacitors. | Applicable in systems needing higher transient current (e.g., camera flash drivers), but over-spec'd for 100-mA use cases - increases cost and board area. | Choose TPS60123DGSR only when peak load exceeds 100 mA; otherwise TPS60205DGSR offers optimal cost, size, and efficiency balance. |
Compared with TPS60204DGSR, TPS60205DGSR replaces low-battery detection with power-good signaling - making it superior for MCU reset coordination but unsuitable for battery fuel gauging. Against TPS60123DGSR, it trades 100-mA headroom for lower BOM cost and identical footprint compliance in space-constrained designs.
Availability
TPS60205DGSR is available at Aetrix Electronics and suitable for handheld medical instrumentation, portable audio players, battery-powered microprocessor systems, and backup-battery boost converters requiring stable component supply, long-lifecycle assurance, and traceable sourcing.
Supply support for TPS60205DGSR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TPS6020x family was designed specifically for space-critical, battery-powered applications requiring regulated 3.3-V output without inductors - targeting portable medical devices, audio players, and handheld instrumentation where EMI, size, and shelf life are critical.
FAQ
What is the key functional difference between TPS60205DGSR and TPS60204DGSR?
The TPS60205DGSR integrates a power-good (PG) detector that asserts high when the output reaches ≥90% of 3.3 V, while the TPS60204DGSR features a low-battery indicator (LBI/LBO) that warns when input voltage drops below ~1.18 V. Pin 1 on TPS60205DGSR must be tied to GND, whereas TPS60204DGSR uses it as an analog input. Both share identical 10-pin MSOP packaging and 3.3-V/100-mA regulation, but their monitoring functions are mutually exclusive.
Does TPS60205DGSR require external resistors for power-good functionality?
No, the TPS60205DGSR's power-good (PG) function is fully integrated and requires no external resistors. The PG output is open-drain and needs only a pullup resistor (100 kΩ to 1 MΩ) to OUT or another logic rail ≤3.6 V. Unlike the TPS60204DGSR's LBI input, which demands a precision resistor divider to set trip voltage, the TPS60205DGSR's PG threshold is fixed at 90% of VO with 1% hysteresis and operates autonomously.
Can TPS60205DGSR operate from a single 1.5-V alkaline cell?
No, the TPS60205DGSR has a minimum input voltage of 1.6 V and is specified for operation with two alkaline, NiCd, or NiMH cells (typically 2.0–3.2 V). A single 1.5-V cell falls below the 1.6-V absolute minimum and cannot sustain regulation. For single-cell applications, TI recommends the TPS60400 series or other dedicated 1.8-V-input charge pumps.
What capacitor types are mandatory for stable operation of TPS60205DGSR?
TPS60205DGSR requires X5R or X7R ceramic capacitors exclusively - Z5U and Y5V types are prohibited due to severe capacitance loss over temperature and bias voltage. Per TI's datasheet, C1/C2 must be 1 μF, Ci ≥ 2.2 μF, and Co ≥ 2.2 μF, all rated for ≥6.3 V and placed with minimal trace inductance. Using non-X5R/X7R ceramics risks output instability, excessive ripple, and premature dropout under load.
How does the EN pin control synchronization and shutdown on TPS60205DGSR?
The EN pin on TPS60205DGSR supports three distinct modes: logic-low disables the device completely (0.05 μA supply current), logic-high enables internal 200–400 kHz oscillation, and AC-coupled square-wave input (400–800 kHz) synchronizes switching to the external clock. If EN is held low >10 μs during sync mode, the device shuts down. This triple-mode control enables precise EMI management and seamless integration into systems with existing clock trees.
TPS60205DGSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
TPS60205DGSR FAQ
1.How can I place an order for TPS60205DGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60205DGSR 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 TPS60205DGSR reliable?
The price and inventory of TPS60205DGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60205DGSR is usually 5 days.
3.What payment methods are accepted for TPS60205DGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60205DGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60205DGSR?
TPS60205DGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60205DGSR 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 TPS60205DGSR?
For technical support, including TPS60205DGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60205DGSR requirements.
6.How does Aetrix verify that TPS60205DGSR is sourced from the original manufacturer or authorized distributors?
All TPS60205DGSR 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 TPS60205DGSR meets industry standards.
7.What is the process for return or replacement of TPS60205DGSR?
All TPS60205DGSR units undergo pre-shipment inspection (PSI). If there is an issue with TPS60205DGSR, 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 TPS60205DGSR part is unused and in its original packaging.
Return procedure for TPS60205DGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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