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Texas Instruments TPS60303DGSG4
- Part No.:
- TPS60303DGSG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60303DGSG4.pdf
- Description:
- IC REG CHARGE PUMP 2VIN 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,561
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Product details
Overview
TPS60303DGSG4 from Texas Instruments is a dual-output, regulated charge pump DC-DC converter designed for ultra-low-voltage battery-powered systems. It accepts 0.9 V–1.8 V input (single alkaline/NiMH), delivers regulated 3-V ±4% at up to 20 mA on OUT2 and 2×VIN (up to 40 mA) on OUT1, and features push-pull power-good (PG) output for sequencing in hearing aids and portable medical instruments.
For engineers reviewing the TPS60303DGSG4 datasheet, TPS60303DGSG4 pinout, TPS60303DGSG4 application, or TPS60303DGSG4 equivalent, key selection criteria include its 3-V regulated output tolerance, 35 µA quiescent current, LinSkip mode operation, 10-pin VSSOP package, and compatibility with 1-µF ceramic capacitors only - critical for space-constrained, low-power embedded designs.
Technical Context
The TPS60303DGSG4 implements a two-stage switched-capacitor architecture: first stage doubles VIN to generate OUT1 (2×VIN), second stage quadruples VIN to regulate OUT2 at 3 V (±4%). It automatically selects between 3× or 4× conversion modes based on input voltage to maintain regulation across 0.9 V–1.8 V.
Its LinSkip operating mode transitions seamlessly between pulse-skipping (low IQ) at light loads and constant-frequency linear regulation above ~7.5 mA, minimizing output ripple while sustaining >90% peak efficiency. The push-pull PG output actively drives high (3 V) when OUT2 reaches ≥98% of nominal, enabling reliable power-up sequencing without external pull-up resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.9 V to 1.8 V - supports single-cell alkaline, NiCd, or NiMH batteries without brownout risk down to 0.9 V. |
| OUT2 Output Voltage | 3.0 V ±4% - tightly regulated rail for analog sensors or low-voltage MCUs like MSP430. |
| Max Output Current (OUT2) | 20 mA - sufficient for powering RF transceivers, LCD bias, or sensor signal chains in portable instruments. |
| Quiescent Current | <35 µA - enables multi-year battery life in always-on hearing aids and smart card readers. |
| Switching Frequency | 470–900 kHz - high enough to allow small 1-µF ceramic capacitors; avoids audible noise in audio applications. |
| Shutdown Current | 0.5 µA (typ) - isolates load from battery during sleep, extending shelf life in infrequently used devices. |
| Power-Good Output | Push-pull, active-high - eliminates need for external pull-up resistor; simplifies BOM and PCB layout. |
Pinout & Package
TPS60303DGSG4 is housed in a micro-small 10-pin VSSOP (DGS) package measuring 3.05 mm × 4.98 mm, optimized for high-density portable PCBs. Thermal resistance RθJA = 156.1°C/W enables operation up to 125°C junction temperature with minimal heatsinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high logic control; pulls device into <0.5 µA shutdown state when low, isolating battery from outputs. |
| VIN | Input supply | Accepts 0.9–1.8 V; requires ≥1-µF ceramic bypass capacitor to stabilize input impedance and improve efficiency. |
| C1+, C1− | Flying capacitor 1 terminals | Form first charge pump stage; connect to 1-µF ceramic capacitor (C1F) to generate 2×VIN on OUT1. |
| C2+, C2− | Flying capacitor 2 terminals | Form second charge pump stage; connect to 1-µF ceramic capacitor (C2F) to regulate 3-V output on OUT2. |
| OUT1 | Unregulated 2×VIN output | Delivers up to 40 mA; used for intermediate rails or powering low-noise analog circuitry requiring doubled input. |
| OUT2 | Regulated 3-V output | Primary regulated rail; ±4% accuracy over full load/temperature range; powers core logic or precision ADCs. |
| PG | Power-good output | Push-pull active-high signal; asserts high when OUT2 ≥98% of 3 V; drives sequencing logic directly. |
| GND | Ground reference | Common return for all internal circuits and external capacitors; must be low-impedance plane for ripple control. |
Key Features
| Feature | Design Value |
|---|---|
| No-inductor architecture | Eliminates magnetic components and EMI concerns - ideal for compact wearable and hearing instrument designs. |
| Five 1-µF ceramic capacitors only | Reduces BOM count and board area; enables use of low-ESR, miniature 0805/1206 MLCCs for stable regulation. |
| LinSkip mode operation | Combines 35 µA quiescent current at light loads with low-noise constant-frequency regulation above 7.5 mA. |
| Load isolation in shutdown | Prevents battery drain during storage or standby - critical for consumer medical devices with long shelf life. |
| Integrated power-good supervisor | Push-pull PG output removes dependency on external pull-ups, reducing component count and start-up timing uncertainty. |
Applications
| Hearing Instruments | Portable Smart Card Readers |
|---|---|
|
Use Scenario: Powering ultra-low-power analog front-end (AFE), MEMS microphone bias, and Bluetooth LE radio in rechargeable hearing aids. IC Role / Device Role / Timing Role: Dual-rail power manager generating clean 3-V analog supply (OUT2) and 2×VIN bias (OUT1) from single 1.2-V NiMH cell. Use Value: 35 µA quiescent current extends battery runtime beyond 1 week per charge; LinSkip mode prevents audible switching noise in audio path. |
Use Scenario: Enabling contactless EMV transaction capability in handheld retail terminals powered by coin-cell or AAA batteries. IC Role / Device Role / Timing Role: Regulated 3-V supply for secure element and NFC controller; PG signal triggers firmware initialization upon stable rail. Use Value: Push-pull PG eliminates external pull-up, saving board space and ensuring deterministic power-up sequence under varying battery voltage. |
| Metering Applications (MSP430-based) | Home-Automation Sensors |
|
Use Scenario: Supplying 3-V rail to MSP430FR59xx MCU and precision ADC in battery-operated water/gas meters. IC Role / Device Role / Timing Role: Primary DC-DC regulator converting 1.5-V alkaline input to stable 3-V system rail; PG enables wake-from-sleep synchronization. Use Value: 0.9-V minimum input allows full utilization of battery capacity down to end-of-life; 40 mA OUT1 supports auxiliary sensor excitation. |
Use Scenario: Powering Zigbee/Thread SoCs and environmental sensors (temp/humidity/PIR) in wireless wall switches and thermostats. IC Role / Device Role / Timing Role: Efficient step-up converter delivering regulated 3-V rail from 1.5-V AA/AAA; shutdown mode reduces leakage to sub-µA. Use Value: 156.1°C/W thermal resistance permits operation in enclosed plastic enclosures without derating; no inductor simplifies EMC compliance. |
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 |
|---|---|---|---|
| TPS60301DGSG4 | Same 10-pin VSSOP package and 3-V output, but open-drain PG requiring external 100-kΩ–1-MΩ pull-up resistor. | Suitable where system already provides pull-up or where PG polarity flexibility is needed; adds one passive component. | Select TPS60301DGSG4 only if open-drain PG is required for wired-OR logic or level-shifting; otherwise prefer TPS60303DGSG4 for lower BOM count. |
| TPS60302DGSG4 | Identical pinout and electrical specs except for 3.3-V ±4% regulated output (vs 3-V) and push-pull PG. | Used where downstream ICs require 3.3-V I/O compatibility (e.g., certain RF transceivers or digital sensors). | Choose TPS60302DGSG4 when 3.3-V rail is mandatory; TPS60303DGSG4 is optimal for 3-V–optimized analog/low-power systems. |
Compared with TPS60301DGSG4 and TPS60302DGSG4, the TPS60303DGSG4 offers identical packaging and push-pull PG functionality but targets 3-V–specific applications - reducing design margin overhead and enabling tighter voltage headroom in battery-sensitive systems.
Availability
TPS60303DGSG4 is available at Aetrix Electronics and suitable for hearing instruments, portable smart card readers, MSP430-based metering, and home-automation sensors requiring stable component supply across extended production lifecycles.
Supply support for TPS60303DGSG4 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 low-power DC-DC conversion.
The TPS6030x family was engineered specifically for space-critical, single-cell battery applications - delivering regulated dual outputs with minimal external components to enable miniaturized medical, portable, and IoT devices.
FAQ
What is the regulated output voltage of the TPS60303DGSG4?
The TPS60303DGSG4 provides a regulated 3.0-V output on OUT2 with ±4% accuracy across 0.9 V–1.8 V input and 0–20 mA load. This tight tolerance ensures reliable operation of 3-V–rated microcontrollers, sensors, and RF ICs without additional LDO post-regulation.
Does the TPS60303DGSG4 require an external pull-up resistor on the PG pin?
No. The TPS60303DGSG4 features a push-pull power-good output that actively drives high (to ~3 V) when OUT2 reaches ≥98% of nominal voltage. Unlike open-drain variants (e.g., TPS60301DGSG4), it requires no external pull-up resistor - simplifying layout and reducing component count.
What is the minimum input voltage required for the TPS60303DGSG4 to regulate 3 V on OUT2 at full 20 mA load?
The TPS60303DGSG4 maintains 3-V regulation on OUT2 down to 0.9 V input at ≤10 mA load, but requires ≥1.0 V input to sustain 20 mA output current. Below 1.0 V, maximum OUT2 current decreases progressively to preserve regulation integrity.
How many external capacitors does the TPS60303DGSG4 require, and what values are recommended?
The TPS60303DGSG4 requires exactly five 1-µF ceramic capacitors: one input (CIN), two flying (C1F, C2F), and two output (COUT1, COUT2). TI specifies 1 µF as the minimum for stable operation at full load; smaller values reduce max output current and increase ripple.
What is the quiescent current of the TPS60303DGSG4, and how does it impact battery life?
The TPS60303DGSG4 draws less than 35 µA quiescent current under no-load conditions. In a typical hearing aid using a 200-mAh alkaline cell, this enables over 230 days of continuous standby time - a critical advantage for medical wearables requiring long operational intervals between battery replacements.
TPS60303DGSG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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, 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
TPS60303DGSG4 FAQ
1.How can I place an order for TPS60303DGSG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60303DGSG4 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 TPS60303DGSG4 reliable?
The price and inventory of TPS60303DGSG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60303DGSG4 is usually 5 days.
3.What payment methods are accepted for TPS60303DGSG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60303DGSG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60303DGSG4?
TPS60303DGSG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60303DGSG4 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 TPS60303DGSG4?
For technical support, including TPS60303DGSG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60303DGSG4 requirements.
6.How does Aetrix verify that TPS60303DGSG4 is sourced from the original manufacturer or authorized distributors?
All TPS60303DGSG4 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 TPS60303DGSG4 meets industry standards.
7.What is the process for return or replacement of TPS60303DGSG4?
All TPS60303DGSG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS60303DGSG4, 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 TPS60303DGSG4 part is unused and in its original packaging.
Return procedure for TPS60303DGSG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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