My Inquiry
My Account
Texas Instruments TPS60303DGS
- Part No.:
- TPS60303DGS
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60303DGS.pdf
- Description:
- IC REG CHARGE PUMP 2VIN 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,960
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS60303DGS from Texas Instruments is a dual-output, regulated charge pump DC-DC converter designed for ultra-low-input-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 at 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 TPS60303DGS datasheet, TPS60303DGS pinout, TPS60303DGS application, or TPS60303DGS 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 TPS60303DGS implements a two-stage switched-capacitor architecture: first stage doubles VIN to generate OUT1 (2×VIN), second stage quadruples and regulates to fixed 3-V output on OUT2. It automatically selects between 3× or 4× conversion modes depending on input voltage to maintain regulation across 0.9 V–1.8 V.
Its LinSkip mode seamlessly transitions from pulse-skipping (low IQ) at light loads to constant-frequency linear-regulation mode above ~7.5 mA, minimizing output ripple while sustaining >90% peak efficiency. The push-pull PG output actively drives high when OUT2 reaches ≥98% of nominal voltage and sinks 5 mA, eliminating external pull-up requirements.
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 without brownout during discharge. |
| OUT2 Output Voltage | 3.0 V ±4% - tightly regulated rail for analog sensors or low-voltage MCUs like MSP430. |
| OUT1 Output Voltage | 2 × VIN - unregulated boost output usable for biasing or auxiliary rails (e.g., LCD bias). |
| Max Output Current | 20 mA @ OUT2, 40 mA @ OUT1 - simultaneous loading permitted if total first-stage current ≤40 mA. |
| Quiescent Current | <35 µA - enables multi-year battery life in always-on hearing instruments and smart card readers. |
| Switching Frequency | 470–900 kHz - fixed-frequency operation ensures predictable EMI profile and simplifies filtering. |
| Power-Good Output | Push-pull, active-high - directly interfaces with MCU reset or enable pins without external components. |
Pinout & Package
TPS60303DGS 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 devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high logic control; pulls device into <0.05 µA shutdown, isolating battery from load. |
| VIN | Input supply | Accepts 0.9–1.8 V; requires ≥1-µF ceramic bypass to GND for stable start-up and low-noise operation. |
| C1+, C1− | Flying capacitor 1 terminals | Form first charge-pump stage; must use matched 1-µF ceramic capacitors for 2×VIN generation. |
| OUT1 | Unregulated boost output | Delivers 2×VIN up to 40 mA; bypassed with 1-µF ceramic capacitor to minimize ripple. |
| OUT2 | Regulated 3-V output | Main power rail; regulated to 3.0 V ±4% across temperature and load (0–20 mA). |
| PG | Power-good output | Push-pull active-high signal indicating OUT2 is within regulation; sinks 5 mA, no pull-up needed. |
| C2+, C2− | Flying capacitor 2 terminals | Form second charge-pump stage; paired with 1-µF ceramic capacitor for 3-V regulation. |
| GND | Ground reference | Common return for all internal circuits and external capacitors; must be low-impedance plane. |
Key Features
| Feature | Design Value |
|---|---|
| No-inductor architecture | Relies solely on five 1-µF ceramic capacitors - eliminates magnetic EMI, reduces BOM cost, and saves board area. |
| LinSkip operating mode | Automatically switches between pulse-skipping (IQ <35 µA) and constant-frequency linear regulation (low ripple) based on load. |
| Battery isolation in shutdown | Leakage from OUT1/OUT2 to VIN is ≤1 µA - preserves shelf life of primary batteries in pagers and toys. |
| Integrated power supervision | PG output asserts high within 400 µs of valid OUT2 voltage, enabling precise power-up sequencing for MSP430-based meters. |
| Wide input voltage support | Operates down to 0.9 V - extends usable battery capacity from fresh alkaline (1.5 V) to deeply discharged (0.9 V) states. |
Applications
| Hearing Instruments | Portable Smart Card Readers |
|---|---|
Use Scenario: Powering ultra-low-power analog front-end and digital controller in in-the-ear (ITE) hearing aids using a single zinc-air battery. IC Role / Device Role / Timing Role: Primary 3-V regulated supply generator with integrated power-good signaling for MCU wake-up and ADC biasing. Use Value: Enables >3-year battery life via 35 µA quiescent current and deep-discharge operation down to 0.9 V input. |
Use Scenario: Providing isolated, low-noise 3-V rail for contactless RFID interface and secure element in handheld payment terminals. IC Role / Device Role / Timing Role: Dual-rail charge pump delivering clean 3-V supply (OUT2) and auxiliary 2×VIN bias (OUT1) for RF transceiver. Use Value: Eliminates inductors to meet stringent EMI limits for EMVCo certification while maintaining 20-mA sustained load capability. |
| Metering Applications (MSP430) | Home-Automation Sensors |
Use Scenario: Supplying regulated 3-V rail and sequenced power-good signal to TI MSP430FR2355 in ultralow-power water/gas meters. IC Role / Device Role / Timing Role: System power manager with PG used as hardware reset trigger and OUT1 powering LCD segment drivers. Use Value: Achieves sub-1-µA system sleep current by leveraging TPS60303DGS shutdown isolation and LinSkip light-load efficiency. |
Use Scenario: Powering Zigbee/BLE wireless sensor nodes (e.g., temperature/humidity) powered by coin-cell or AA batteries. IC Role / Device Role / Timing Role: Compact, capacitor-only DC-DC converter generating stable 3-V rail for RF SoC and analog sensors. Use Value: Reduces solution size by >40% vs inductor-based alternatives while supporting 10-year battery life via <35 µA IQ. |
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 |
|---|---|---|---|
| TPS60301DGS | Same 3-V output but open-drain PG requiring external pull-up resistor (100 kΩ–1 MΩ). | Suitable where MCU GPIO can tolerate weak pull-up or where PG is unused. | Select when board layout allows external resistor and lower BOM cost outweighs push-pull convenience. |
| TPS60302DGS | Identical pinout and package but delivers 3.3-V ±4% regulated output instead of 3-V. | Required for systems needing 3.3-V logic compatibility (e.g., certain UART peripherals or flash memory). | Choose only if downstream circuitry explicitly requires 3.3-V, not 3-V, regulation tolerance. |
Compared with TPS60301DGS, TPS60303DGS eliminates external pull-up components and simplifies power sequencing; compared with TPS60302DGS, it provides tighter 3-V compliance for analog-sensor biasing and low-voltage MCU cores - making TPS60303DGS optimal for hearing aids and precision metering.
Availability
TPS60303DGS 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 for medical and industrial certifications.
Supply support for TPS60303DGS 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 ICs, with decades of expertise in low-power design for battery-operated systems.
The TPS6030x product line was engineered specifically for space-critical, single-cell battery applications - delivering regulated dual outputs with minimal external components to enable miniaturized medical, metering, and portable consumer devices.
FAQ
What is the regulated output voltage of the TPS60303DGS?
The TPS60303DGS provides a tightly regulated 3.0-V output on OUT2 with ±4% tolerance across input voltage (0.9 V–1.8 V), load (0–20 mA), and temperature (–40°C to +125°C). This specification is confirmed in Section 8.5 Electrical Characteristics of the SLVS302B datasheet, where VOUT(OUT2) is specified as 2.88 V to 3.12 V at 1.0 V < VIN < 1.8 V and 0 < IOUT < 20 mA.
Does the TPS60303DGS require inductors?
No, the TPS60303DGS is an inductorless charge pump converter. It operates using only five external 1-µF ceramic capacitors - two flying capacitors (C1F, C2F), one input capacitor (CIN), and two output capacitors (COUT1, COUT2). This architecture eliminates magnetic components, reducing EMI and PCB area while maintaining >90% peak efficiency.
What type of power-good output does the TPS60303DGS feature?
The TPS60303DGS features a push-pull power-good (PG) output that actively drives high when OUT2 reaches ≥98% of its nominal 3.0-V value. Unlike open-drain variants (e.g., TPS60301DGS), it requires no external pull-up resistor and can sink up to 5 mA, simplifying interface with MCU reset or enable inputs in hearing aids and portable meters.
What is the quiescent current of the TPS60303DGS under no-load conditions?
The TPS60303DGS draws less than 35 µA of quiescent current (IQ) when enabled and unloaded, measured at VIN = 1.8 V per Section 8.5 of the datasheet. In shutdown mode (EN = low), supply current drops to just 0.05 µA - a critical feature for extending battery life in always-on portable medical and sensor applications.
Can both outputs of the TPS60303DGS be loaded simultaneously?
Yes, both OUT1 (2×VIN) and OUT2 (3.0 V) can be loaded simultaneously, but the total current drawn from the first charge-pump stage (supplying OUT1) must not exceed 40 mA. For example, a 20-mA load on OUT1 and a 10-mA load on OUT2 is permissible, whereas 30 mA on OUT1 and 20 mA on OUT2 exceeds the 40-mA limit and may cause regulation loss on OUT2.
TPS60303DGS 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
TPS60303DGS FAQ
1.How can I place an order for TPS60303DGS through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60303DGS 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 TPS60303DGS reliable?
The price and inventory of TPS60303DGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60303DGS is usually 5 days.
3.What payment methods are accepted for TPS60303DGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60303DGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60303DGS?
TPS60303DGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60303DGS 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 TPS60303DGS?
For technical support, including TPS60303DGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60303DGS requirements.
6.How does Aetrix verify that TPS60303DGS is sourced from the original manufacturer or authorized distributors?
All TPS60303DGS 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 TPS60303DGS meets industry standards.
7.What is the process for return or replacement of TPS60303DGS?
All TPS60303DGS units undergo pre-shipment inspection (PSI). If there is an issue with TPS60303DGS, 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 TPS60303DGS part is unused and in its original packaging.
Return procedure for TPS60303DGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS60303DGS Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
