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Texas Instruments TPS60302DGS
- Part No.:
- TPS60302DGS
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60302DGS.pdf
- Description:
- IC REG CHARGE PUMP 2VIN 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:301
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Product details
Overview
TPS60302DGS from Texas Instruments is a dual-output, regulated charge pump DC-DC converter designed for space-constrained, single-cell battery-powered systems. It delivers 3.3 V (±4%) at up to 20 mA on OUT2 and 2×VIN (up to 40 mA at 1 V input) on OUT1, with <35 µA quiescent current and push-pull power-good (PG) supervision - enabling reliable power sequencing in hearing aids and portable medical instruments.
For engineers reviewing the TPS60302DGS datasheet, TPS60302DGS pinout, TPS60302DGS application, or TPS60302DGS equivalent, key selection criteria include its 0.9–1.8 V input range, dual regulated/unregulated outputs, LinSkip mode efficiency optimization, and VSSOP-10 package compatibility with ultra-low-power MSP430-based metering designs.
Technical Context
The TPS60302DGS integrates two cascaded switched-capacitor stages: first stage doubles VIN to generate OUT1; second stage quadruples VIN (or regulates to 3.3 V) for OUT2. It automatically selects between 3× or 4× conversion modes based on input voltage to maintain regulation across 0.9–1.8 V.
Its LinSkip operating mode transitions seamlessly between pulse-skipping (light load, <7.5 mA) and constant-frequency linear-regulation (heavy load), minimizing output ripple while sustaining >90% peak efficiency. The push-pull PG output asserts high when OUT2 reaches ≥98% of 3.3 V and sinks ≤1.6 mA or sources ≥2.7 V at 5 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.9 V to 1.8 V - supports single alkaline/NiMH/NiCd cell without brownout across full discharge curve. |
| OUT2 Output Voltage | 3.3 V ±4% - tightly regulated rail for low-noise analog circuitry or MCU I/O domains. |
| OUT1 Output Capability | 2×VIN, up to 40 mA at 1 V input - unregulated boost rail for LEDs, sensors, or auxiliary logic. |
| Quiescent Current | <35 µA - extends battery life in always-on wearable devices (e.g., hearing instruments). |
| Power-Good Output | Push-pull, active-high at ≥98% of 3.3 V - enables autonomous power-up sequencing without external supervisor IC. |
| Switching Frequency | 470–900 kHz - allows use of small 1-µF ceramic capacitors; minimizes EMI in sensitive RF environments. |
| Shutdown Current | 0.05–2.5 µA - isolates load from battery, preserving shelf life during storage. |
Pinout & Package
TPS60302DGS is housed in a micro-small 10-pin VSSOP (DGS) package measuring 3.05 mm × 4.98 mm, optimized for high-density PCB layouts in portable medical and metering applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high digital control; pulls device into shutdown (≤2.5 µA supply current) when low. |
| VIN | Input supply | Accepts 0.9–1.8 V battery source; requires ≥1-µF ceramic bypass to GND for stability. |
| C1+, C1− | Flying capacitor 1 terminals | Form first charge pump stage; connect 1-µF ceramic capacitor between C1+ and C1−. |
| C2+, C2− | Flying capacitor 2 terminals | Form second charge pump stage; connect 1-µF ceramic capacitor between C2+ and C2−. |
| OUT1 | Unregulated 2×VIN output | Delivers up to 40 mA; bypass to GND with ≥1-µF ceramic capacitor for low-impedance rail. |
| OUT2 | Regulated 3.3-V output | Supplies up to 20 mA; bypass to GND with ≥1-µF ceramic capacitor for tight regulation. |
| PG | Power-good output | Push-pull, asserts high when OUT2 ≥3.234 V; drives loads up to 5 mA without external pull-up. |
| GND | Ground reference | Common return path for all internal circuits and external capacitors; must be low-impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent outputs | OUT1 (2×VIN, 40 mA) and OUT2 (3.3 V, 20 mA) support mixed-signal systems requiring separate analog/digital rails. |
| LinSkip mode operation | Automatically switches between pulse-skipping (low IQ) and constant-frequency regulation (low noise) based on load current threshold (~7.5 mA). |
| No inductors required | Full DC-DC conversion using only five 1-µF ceramic capacitors - eliminates EMI, size, and cost penalties of magnetic components. |
| Load isolation in shutdown | Internal switches disconnect OUT1/OUT2 from VIN when EN = low - prevents battery drain during standby or storage. |
| Integrated power-good supervisor | Push-pull PG output eliminates need for external supervisor IC or pull-up resistor, simplifying BOM and layout. |
Applications
| Hearing Instruments | Portable Smart Card Readers |
|---|---|
Use Scenario: Miniaturized, battery-powered hearing aids requiring long operational life and ultra-low-noise analog supply. IC Role / Device Role / Timing Role: Generates clean 3.3-V rail for microphone preamp and ADC, plus 2×VIN rail for receiver driver - both from single 1.2-V NiMH cell. Use Value: <35 µA quiescent current extends battery runtime beyond 1 week; LinSkip mode suppresses switching noise in audio band. |
Use Scenario: Handheld EMV-compliant smart card readers powered by coin cell or AAA battery. IC Role / Device Role / Timing Role: Supplies regulated 3.3-V to secure element and contactless transceiver, while delivering 2×VIN to card interface drivers. Use Value: Dual-rail capability eliminates need for second regulator; VSSOP-10 footprint fits sub-20-mm² PCB area constraints. |
| Metering Applications (MSP430) | Home-Automation Sensors |
Use Scenario: Battery-operated utility meters using MSP430 microcontrollers with integrated ADC and LCD drivers. IC Role / Device Role / Timing Role: Powers MSP430 core (3.3 V) and analog front-end (2×VIN) from single alkaline cell; PG signal triggers MCU wake-up on valid rail. Use Value: Push-pull PG output directly interfaces with MSP430's RST/NMI pin - no level-shifting or external logic required. |
Use Scenario: Wireless temperature/humidity sensors in smart thermostats or HVAC controls running on AA batteries. IC Role / Device Role / Timing Role: Provides stable 3.3-V supply for RF SoC and sensor interface, while 2×VIN powers precision op-amps in signal conditioning chain. Use Value: 0.9-V start-up enables operation down to end-of-life battery voltage, extending usable battery capacity by ~15%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output charge pump applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60300DGS | Same 3.3-V OUT2 and 2×VIN OUT1, but open-drain PG output requiring external pull-up resistor. | Lacks integrated push-pull drive; adds BOM cost and layout area for pull-up network. | Select when existing design already uses open-drain PG interface or requires flexible voltage-level translation. |
| TPS60303DGS | Identical pinout and package, but delivers 3-V (±4%) OUT2 instead of 3.3 V; same push-pull PG. | Optimized for 3-V logic families (e.g., older MSP430 variants); not suitable where 3.3-V tolerance is mandatory. | Choose when system-level voltage rails mandate 3.0 V nominal, or when migrating from legacy 3-V designs. |
Compared with TPS60300DGS, TPS60302DGS eliminates external pull-up needs via push-pull PG, reducing component count; versus TPS60303DGS, it provides higher 3.3-V rail essential for modern low-voltage I/O standards - making it optimal for new 3.3-V embedded designs.
Availability
TPS60302DGS is available at Aetrix Electronics and suitable for hearing instruments, portable smart card readers, and MSP430-based metering applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS60302DGS 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 technologies, with decades of expertise in ultra-low-power DC-DC conversion.
The TPS6030x family was engineered specifically for space-critical, single-cell battery applications - delivering dual regulated/unregulated outputs with minimal external components to enable miniaturized medical, metering, and portable consumer devices.
FAQ
What is the minimum input voltage required for TPS60302DGS to regulate 3.3 V on OUT2 at 20 mA?
The TPS60302DGS maintains 3.3-V regulation on OUT2 down to 1.1 V input at full 20-mA load. Below 1.1 V, maximum supported load decreases - e.g., at 0.9 V input, OUT2 delivers up to 10 mA while staying within ±4% tolerance. This enables extended runtime from aging alkaline or NiMH cells.
Does TPS60302DGS require external compensation components?
No. The TPS60302DGS integrates all regulation circuitry, including error amplifier and feedback divider, and is designed to operate stably with only five 1-µF ceramic capacitors - no external resistors, capacitors, or compensation networks are needed for basic operation.
Can both OUT1 and OUT2 be loaded simultaneously on TPS60302DGS?
Yes. TPS60302DGS supports concurrent loading: OUT1 can deliver up to 40 mA and OUT2 up to 20 mA, provided total current drawn from the first charge pump stage (feeding OUT1) does not exceed 40 mA. For example, 20 mA on OUT1 and 10 mA on OUT2 is fully supported.
How does the LinSkip mode in TPS60302DGS improve system performance?
LinSkip mode dynamically switches between pulse-skipping (for <7.5 mA loads, minimizing IQ to <35 µA) and constant-frequency linear regulation (for >7.5 mA loads, reducing output ripple to <20 mVP-P). This balances battery life and signal integrity without external mode control.
What is the thermal performance of TPS60302DGS under maximum load?
At 1.8 V input and 20 mA on OUT2, TPS60302DGS dissipates ~46 mW. With its VSSOP-10 package RθJA of 156.1°C/W, junction-to-ambient rise is ~7.2°C - well within the 125°C max rating, allowing reliable operation up to 118°C ambient in typical PCB layouts.
TPS60302DGS 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:
- Ratiometric, Step-Up
- Output Configuration:
- Positive
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 0.9V
- Voltage - Input (Max):
- 1.8V
- Voltage - Output (Min/Fixed):
- 2Vin, 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 40mA, 20mA
- Frequency - Switching:
- 700kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
TPS60302DGS FAQ
1.How can I place an order for TPS60302DGS through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60302DGS 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 TPS60302DGS reliable?
The price and inventory of TPS60302DGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60302DGS is usually 5 days.
3.What payment methods are accepted for TPS60302DGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60302DGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60302DGS?
TPS60302DGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60302DGS 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 TPS60302DGS?
For technical support, including TPS60302DGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60302DGS requirements.
6.How does Aetrix verify that TPS60302DGS is sourced from the original manufacturer or authorized distributors?
All TPS60302DGS 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 TPS60302DGS meets industry standards.
7.What is the process for return or replacement of TPS60302DGS?
All TPS60302DGS units undergo pre-shipment inspection (PSI). If there is an issue with TPS60302DGS, 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 TPS60302DGS part is unused and in its original packaging.
Return procedure for TPS60302DGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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