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Texas Instruments TPS60502DGSR
- Part No.:
- TPS60502DGSR
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60502DGSR.pdf
- Description:
- IC REG CHARGE PUMP 1.8V 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,444
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Product details
Overview
TPS60502DGSR from Texas Instruments is a fixed-output 1.8-V, high-efficiency step-down charge pump DC-DC converter optimized for space-constrained battery-powered systems. It delivers up to 250 mA output current with ≤3% voltage tolerance over line, load, and temperature, operates from 1.8 V to 6.5 V input, and integrates power-good supervision and thermal/overcurrent protection. It powers low-voltage logic in portable instrumentation and USB-powered peripherals.
For engineers reviewing the TPS60502DGSR datasheet, TPS60502DGSR pinout, TPS60502DGSR application, or TPS60502DGSR equivalent, key selection criteria include minimum input voltage (≥2.8 V at 150 mA), 10-pin VSSOP package footprint, 90% peak efficiency, soft-start behavior, and compatibility with ceramic flying/output capacitors (1 µF / 10 µF).
Technical Context
The TPS60502DGSR uses switched-capacitor fractional conversion-automatically selecting between LDO, 2/3x, 0.5x, and 1/3x modes based on VIN/VOUT ratio and load-to maintain regulation across 1.8–6.5 V input while delivering fixed 1.8 V output. Its internal error amplifier compares feedback against a 0.8-V reference and controls MOSFET switches driving two flying capacitors (C1F, C2F).
Regulation occurs via skip-mode below 150 mA and linear-mode above; power-good (PG) asserts high when OUT reaches ≥97% of nominal (1.746 V), and EN enables/disables the device with <0.5 µA shutdown current. Thermal shutdown activates at 150°C, and short-circuit current limit holds output at ~300 mA during fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±3% over line, load, and −40°C to +125°C junction temperature - ensures stable core rail for low-power microcontrollers. |
| Input Voltage Range | 1.8 V to 6.5 V - supports single Li-ion (2.8–4.2 V), dual alkaline (2.4–3.2 V), or USB 5 V sources without external LDO pre-regulation. |
| Max Output Current | 250 mA continuous - sufficient for powering DSP cores, RF transceivers, or sensor signal chains in portable devices. |
| Peak Efficiency | 90% at 150 mA, VIN = 3.3 V - minimizes heat generation and extends battery runtime in compact enclosures. |
| Quiescent Current | <40 µA no-load - critical for maintaining >1-year shelf life in always-on IoT sensors and remote controls. |
| Switching Frequency | 600–1200 kHz - enables use of small 0805/1206 ceramic capacitors and reduces EMI filtering burden. |
| Power-Good Threshold | 97% of nominal (1.746 V) with 100–200 µs positive ramp delay - provides reliable reset signaling for downstream logic sequencing. |
Pinout & Package
TPS60502DGSR is housed in a 10-pin VSSOP package (3.05 mm × 4.98 mm, 0.5 mm pitch), optimized for high-density PCB layouts in handheld and wearable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-low digital control: logic low enables converter; high disables with <0.5 µA supply current and load isolation from VIN. |
| PG (Pin 2) | Open-drain power-good output | Asserts high when OUT ≥1.746 V; requires external pull-up to VIN or OUT for system reset coordination. |
| C2F− (Pin 3) | Flying capacitor C2F negative terminal | Connects to ground side of second flying capacitor; forms charge-transfer path in 2/3x and 0.5x conversion phases. |
| C2F+ (Pin 4) | Flying capacitor C2F positive terminal | Connects to switching node for C2F; works with C1F to enable fractional voltage division and energy transfer. |
| VIN (Pin 5) | Main power input | Accepts 1.8–6.5 V unregulated source; bypassed by 2.2 µF ceramic capacitor to suppress input ripple and improve PSRR. |
| C1F+ (Pin 6) | Flying capacitor C1F positive terminal | Switching node for first flying capacitor; alternately charges from VIN and discharges into OUT/COUT during pumping cycles. |
| OUT (Pin 7) | Regulated 1.8 V output | Delivers up to 250 mA; must be bypassed with ≥10 µF ceramic capacitor (≥22 µF for >150 mA) for stability and ripple suppression. |
| C1F− (Pin 8) | Flying capacitor C1F negative terminal | Ground return for C1F; shared with C2F− at GND (Pin 9) in most configurations to minimize loop area and EMI. |
| GND (Pin 9) | Power and signal ground | Common reference for all internal circuits; requires low-impedance connection to PCB ground plane for thermal and noise performance. |
| FB (Pin 10) | Feedback input | Internally connected to 1.8 V output - no external divider needed; simplifies layout and eliminates resistor tolerance errors. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic multi-mode conversion | Selects LDO, 2/3x, 0.5x, or 1/3x mode in real time to sustain ≥85% efficiency across 1.8–6.5 V input range and 0–250 mA load. |
| Integrated power-good supervisor | Open-drain PG pin signals valid 1.8 V rail within 200 µs of startup - enables safe processor boot and peripheral initialization. |
| Thermal and overcurrent protection | Reduces output current above 150°C junction temp; limits short-circuit current to ~300 mA - prevents damage during fault conditions. |
| Load isolation in shutdown | Disconnects OUT from VIN when EN = high - eliminates battery drain in storage mode, extending shelf life beyond 12 months. |
| Low-noise ceramic-capacitor operation | Requires only four 0805/1206 MLCCs (CIN=2.2 µF, C1F=C2F=1 µF, COUT=10 µF) - eliminates inductors and reduces EMI vs inductor-based buck converters. |
Applications
| Portable Medical Sensors | USB-Powered Test Equipment |
|---|---|
Use Scenario: Compact blood glucose meter powered by single AAA battery (1.0–1.5 V under load) with boost + LDO architecture. IC Role / Device Role / Timing Role: TPS60502DGSR generates stable 1.8 V for ultra-low-power ADC and BLE SoC core logic. Use Value: Enables direct battery-to-core-rail conversion without intermediate 3.3 V stage, reducing component count and quiescent current by 35% vs discrete solutions. |
Use Scenario: Handheld oscilloscope accessory drawing power exclusively from USB 5 V port. IC Role / Device Role / Timing Role: TPS60502DGSR supplies regulated 1.8 V to FPGA I/O banks and precision analog front-end. Use Value: Delivers 250 mA at 90% efficiency with <30 mVPP ripple - meets USB power budget constraints while maintaining signal integrity. |
| Industrial Wireless Node | Wearable Fitness Tracker |
Use Scenario: LoRaWAN edge sensor node operating in harsh environments with wide temperature range. IC Role / Device Role / Timing Role: TPS60502DGSR powers 1.8 V MCU core and sub-GHz transceiver from 3.6 V Li-SOCl₂ primary cell. Use Value: Maintains regulation down to 2.8 V input at 150 mA - extends usable battery capacity by 22% compared to fixed 3.3 V regulators. |
Use Scenario: Always-on heart-rate monitor using coin-cell battery with aggressive sleep cycling. IC Role / Device Role / Timing Role: TPS60502DGSR supplies 1.8 V to optical sensor ASIC and BLE radio during active measurement bursts. Use Value: Achieves 25 µA typical shutdown current and 80 µs startup - preserves battery life across 10,000+ daily wake cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down charge pump applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60501DGSR | Fixed 3.3 V output; requires ≥4.3 V input at 150 mA; same pinout and features. | Used where higher I/O voltage rails coexist with 1.8 V core - e.g., mixed-signal SoC interfaces. | Select when system requires 3.3 V instead of 1.8 V; no layout change needed but verify input source compliance. |
| MAX17222ETA+ | 1.8 V output, but uses inductor-based buck topology; 95% peak efficiency; 2.3–5.5 V input. | Better suited for high-noise immunity requirements or where lower output ripple (<10 mVPP) is mandatory. | Choose for ultra-low ripple or higher efficiency at light loads; requires inductor and different PCB layout. |
Compared with TPS60502DGSR, TPS60501DGSR offers identical form-factor and protection features but targets 3.3 V I/O domains, while MAX17222ETA+ trades capacitor-only simplicity for superior ripple performance and wider light-load efficiency - making it preferable in noise-sensitive analog signal chains.
Availability
TPS60502DGSR is available at Aetrix Electronics and suitable for portable medical sensors, USB-powered test equipment, industrial wireless nodes, and wearable fitness trackers requiring stable component supply with long-term lifecycle assurance.
Supply support for TPS60502DGSR 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 IC design and manufacturing.
The TPS6050x family was engineered specifically for space-constrained, battery-operated applications demanding high efficiency across wide input ranges - targeting mobile phones, portable instruments, and USB-powered peripherals where inductor-free solutions reduce size and cost.
FAQ
What is the minimum input voltage required for TPS60502DGSR to deliver 150 mA?
The TPS60502DGSR requires a minimum input voltage of 2.8 V to sustain 150 mA output current while maintaining regulation. This value is derived from the device's internal conversion architecture and is specified in the Device Comparison Table of the SLVS391C datasheet. Below 2.8 V, output current capability degrades progressively, and dropout may occur under full load.
Can TPS60502DGSR operate with input voltages below 1.8 V?
No. The absolute minimum recommended input voltage for TPS60502DGSR is 1.8 V per the Recommended Operating Conditions table. Operation below this threshold risks failure to start, unstable regulation, or violation of absolute maximum ratings - particularly at elevated temperatures. Input sources must remain ≥1.8 V across all operating conditions.
Does TPS60502DGSR require external feedback resistors?
No. Unlike the adjustable TPS60500DGSR, the TPS60502DGSR has an internal resistor divider configured for fixed 1.8 V output. Pin 10 (FB) is internally connected to the output and must be tied directly to OUT - no external resistors or compensation network is needed, simplifying layout and improving accuracy.
How does the power-good (PG) pin behave during startup and fault conditions?
The PG pin of TPS60502DGSR is an open-drain output that remains low until OUT reaches ≥97% of 1.8 V (i.e., ≥1.746 V), then pulls high after a 100–200 µs positive ramp delay. During shutdown (EN = high) or output undervoltage, PG stays low. An external pull-up resistor (typically 100 kΩ to VIN or OUT) is required for proper logic-level signaling.
What ceramic capacitor values are mandatory for stable TPS60502DGSR operation at 250 mA?
For 250 mA operation, TPS60502DGSR requires CIN = 4.7 µF, C1F = C2F = 1 µF, and COUT ≥22 µF (e.g., two parallel 10 µF/6.3 V X5R ceramics). These values are specified in Table 1 of the datasheet to ensure stability, minimize output ripple (<30 mVPP), and prevent oscillation under full load - smaller values risk regulation loss or thermal overload.
TPS60502DGSR 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-Down
- Output Configuration:
- Positive
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 250mA
- Frequency - Switching:
- 800kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
TPS60502DGSR FAQ
1.How can I place an order for TPS60502DGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60502DGSR 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 TPS60502DGSR reliable?
The price and inventory of TPS60502DGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60502DGSR is usually 5 days.
3.What payment methods are accepted for TPS60502DGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60502DGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60502DGSR?
TPS60502DGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60502DGSR 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 TPS60502DGSR?
For technical support, including TPS60502DGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60502DGSR requirements.
6.How does Aetrix verify that TPS60502DGSR is sourced from the original manufacturer or authorized distributors?
All TPS60502DGSR 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 TPS60502DGSR meets industry standards.
7.What is the process for return or replacement of TPS60502DGSR?
All TPS60502DGSR units undergo pre-shipment inspection (PSI). If there is an issue with TPS60502DGSR, 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 TPS60502DGSR part is unused and in its original packaging.
Return procedure for TPS60502DGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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