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Texas Instruments TPS61004DGS
- Part No.:
- TPS61004DGS
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS61004DGS.pdf
- Description:
- IC REG BOOST 2.8V 1.3A 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,537
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Product details
Overview
TPS61004DGS from Texas Instruments is a fixed-output 3.0 V, non-synchronous boost converter for single- or dual-cell battery systems. It delivers up to 100 mA from 0.8 V input and 250 mA from 1.8 V input, features 500 kHz fixed-frequency PWM control with power-save mode, and integrates low-battery detection (LBI/LBO) for portable medical diagnostics and remote controls.
For engineers reviewing the TPS61004DGS datasheet, TPS61004DGS pinout, TPS61004DGS application, or TPS61004DGS equivalent, key selection criteria include minimum start-up voltage (0.8 V), output accuracy (±3% at 100 mA), quiescent current (<50 µA), and compatibility with 33 µH inductors and ceramic output capacitors in space-constrained designs.
Technical Context
The TPS61004DGS implements a current-mode PWM controller operating at 500 kHz nominal frequency, entering power-save mode below light-load thresholds to maintain >85% efficiency at 1 mA. Its integrated antiringing switch clamps SW-node ringing during discontinuous conduction mode, reducing EMI without external snubbers.
It uses internal resistive feedback for fixed 3.0 V output (VFB = 500 mV), supports undervoltage lockout at ~0.7 V, and provides programmable low-battery detection via LBI threshold (500 mV ±15 mV) with 10 mV hysteresis - all while drawing only 6 µA from VOUT in active no-load condition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±3% over load/temperature - enables direct replacement of 3.0 V LDOs in battery-powered systems without external feedback resistors. |
| Input Voltage Range | 0.8 V to 3.3 V - supports operation down to deeply discharged NiMH/NiCd or alkaline cells, including start-up from 0.8 V into full load. |
| Max Output Current | 100 mA @ 0.8 V input; 250 mA @ 1.8 V input - defines usable load headroom for wireless headsets and pagers under worst-case battery conditions. |
| Switch Current Limit | 0.95 A typical - sets maximum inductor peak current; requires inductor saturation rating >0.95 A to avoid core saturation and thermal failure. |
| Quiescent Current | 44 µA from VBAT + 6 µA from VOUT - ensures >1-year shelf life in always-on remote controls using two AA alkaline cells. |
| Oscillator Frequency | 360–840 kHz (typ. 500 kHz) - balances inductor size vs. switching loss; allows use of compact 33 µH shielded power inductors. |
| Shutdown Current | 0.2–5 µA - minimizes battery drain during system standby; enables reliable long-term storage without battery removal. |
Pinout & Package
TPS61004DGS is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm with 0.5 mm pitch, optimized for high-density portable PCB layouts and compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-high logic control; pulls device into shutdown when grounded, reducing total supply current to sub-5 µA. |
| COMP (Pin 2) | Compensation node | Connects external R-C-C network to stabilize control loop; required for stable regulation across temperature and load transients. |
| FB (Pin 3) | Feedback input | Internally connected to 3.0 V divider; must be left unconnected for fixed-output operation - no external resistor needed. |
| GND (Pin 4) | Power ground | Main return path for switch current and IC bias; requires low-impedance PCB pour beneath exposed pad for thermal performance. |
| VOUT (Pin 5) | Regulated output | Delivers 3.0 V to load; requires ≥22 µF ceramic output capacitor (X5R/X7R) placed within 3 mm for ripple suppression. |
| LBO (Pin 10) | Open-drain LBO output | Sinks current when LBI < 500 mV; requires external pull-up to VOUT for microcontroller wake-up or LED alert signaling. |
| LBI (Pin 9) | Low-battery input | Monitors scaled battery voltage; connect to GND if unused - floating connection causes undefined LBO behavior. |
| NC/FBGND (Pin 8) | No-connect | Not bonded internally on TPS61004DGS; must remain unconnected - not a ground reference for external circuits. |
| SW (Pin 7) | Switch node | Connects to inductor and Schottky diode anode; carries high di/dt; requires short, wide trace and local ground plane to minimize EMI. |
| VBAT (Pin 6) | Battery input | Accepts 0.8–3.3 V raw battery; requires ≥10 µF ceramic input capacitor placed adjacent to pin for transient current sourcing. |
Key Features
| Feature | Design Value |
|---|---|
| Start-up into full load at 0.8 V | Enables reliable power-up from exhausted single-cell batteries in remote controls and medical sensors without brownout reset. |
| Integrated low-battery comparator | Provides system-level battery monitoring with 500 mV threshold and 10 mV hysteresis - eliminates need for external supervisor IC. |
| Antiringing switch | Dampens SW-node oscillation during DCM, reducing radiated EMI by >10 dB compared to discrete solutions - simplifies FCC/CE compliance testing. |
| Power-save mode | Maintains >80% efficiency at 1 mA output by pulsing only as needed - extends runtime in intermittent-usage devices like IR remotes. |
| Micro-size 10-pin VSSOP | 3.0 mm × 3.0 mm footprint saves >40% board area versus SOIC-8 alternatives - critical for hearing aids and compact wearables. |
Applications
| Wireless Headsets | Portable Medical Diagnostics |
|---|---|
Use Scenario: Powering Bluetooth audio ICs and MEMS microphones from a single NiMH cell (0.9–1.4 V). IC Role / Device Role / Timing Role: Primary 3.0 V rail generator with fast transient response to handle RF transmit bursts. Use Value: Delivers stable 3.0 V at 80 mA with <1% line regulation, enabling clean audio without dropout during call initiation. | Use Scenario: Supplying glucose meter display, sensor interface, and BLE radio from two alkaline cells (1.8–3.2 V). IC Role / Device Role / Timing Role: Main system power regulator with integrated battery monitoring for end-of-life alert. Use Value: Uses LBI/LBO to trigger low-battery warning at 2.2 V pack voltage, ensuring accurate test results before shutdown. |
| Pagers | Remote Controls |
Use Scenario: Providing regulated 3.0 V to pager baseband processor and vibration motor driver from one NiCd cell. IC Role / Device Role / Timing Role: High-efficiency boost converter with ultra-low quiescent current for standby operation. Use Value: Draws only 44 µA from battery in active idle state, supporting >6-month shelf life with minimal self-discharge impact. | Use Scenario: Powering infrared LED driver and microcontroller in universal remote using two AAA alkaline cells. IC Role / Device Role / Timing Role: Always-on power source with shutdown control via EN pin for deep sleep mode. Use Value: Reduces shutdown current to 0.2 µA, extending battery life beyond 2 years in typical usage patterns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61005DGS | Fixed 3.3 V output; 3.3 V ±3% tolerance; identical pinout and package. | Requires system redesign if 3.3 V rail exceeds downstream IC absolute maximum ratings (e.g., some 3.0 V logic). | Select when target load requires 3.3 V and tolerates tighter regulation window (±3% vs. ±3.3% at 3.0 V). |
| MAX756CPA+ | 500 kHz fixed frequency; 3.3 V fixed output; 8-pin PDIP/SO; higher IQ (110 µA); no LBI/LBO. | Lacks integrated battery monitor; requires external supervisor for low-battery indication; larger footprint. | Choose only if legacy DIP layout exists or LBO functionality is unnecessary and cost is primary constraint. |
Compared with TPS61004DGS, TPS61005DGS offers higher output voltage but identical efficiency and start-up capability, while MAX756CPA+ trades integration and size for lower unit cost - making TPS61004DGS optimal for new compact, battery-aware designs requiring 3.0 V.
Availability
TPS61004DGS is available at Aetrix Electronics and suitable for wireless headsets, portable medical diagnostics, and remote controls requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS61004DGS 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 high-volume manufacturing.
The TPS6100x family was engineered specifically for ultra-low-voltage battery-powered consumer and medical devices, prioritizing start-up reliability at sub-1 V, integrated system supervision, and minimal board area.
FAQ
What is the minimum input voltage required for TPS61004DGS to start up under load?
The TPS61004DGS starts up into full load at 0.8 V across the full temperature range (–40°C to 85°C), as verified in TI's SLVS279D datasheet Figure 10. This enables operation from deeply discharged single-cell NiMH or alkaline batteries. Once started, it continues regulating down to 0.8 V input. The TPS61004DGS achieves this via optimized UVLO and current-limited soft-start circuitry.
Does TPS61004DGS require external feedback resistors to set its output voltage?
No, the TPS61004DGS has an internal resistive divider that fixes the output to 3.0 V. Pin FB (Pin 3) must be left unconnected per datasheet Section 6 - connecting external resistors will disrupt regulation. This distinguishes it from adjustable variants like TPS61000DGS and eliminates tuning errors in high-volume assembly.
How does the low-battery detection function work on TPS61004DGS?
The TPS61004DGS uses LBI (Pin 9) to monitor battery voltage against a 500 mV ±15 mV internal reference. When LBI drops below threshold, LBO (Pin 10) pulls low as an open-drain signal. If unused, LBI must be tied to GND - floating LBI causes erratic LBO behavior. The TPS61004DGS integrates this function to eliminate external supervisor ICs.
What inductor value is recommended for TPS61004DGS in a typical application?
TI specifies 33 µH as the standard inductor value for TPS61004DGS, validated across input ranges and loads in SLVS279D Section 7.3 and Figure 3. Coilcraft DO3308P-333 is a recommended part. Inductor saturation current must exceed 0.95 A (the TPS61004DGS switch limit) to prevent core saturation and thermal runaway under peak load.
Can TPS61004DGS be used with ceramic output capacitors?
Yes, the TPS61004DGS is designed for ceramic output capacitors: ≥22 µF X5R/X7R type, placed within 3 mm of VOUT and GND pins. Ceramic caps provide low ESR and enable tight output ripple (<3% of 3.0 V), unlike electrolytic alternatives which degrade regulation stability and increase board area. This is confirmed in TI's Application Report SLVA392.
TPS61004DGS 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:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.8V
- Voltage - Input (Max):
- 2.8V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 1.3A (Switch)
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
TPS61004DGS FAQ
1.How can I place an order for TPS61004DGS through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61004DGS 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 TPS61004DGS reliable?
The price and inventory of TPS61004DGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61004DGS is usually 5 days.
3.What payment methods are accepted for TPS61004DGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61004DGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61004DGS?
TPS61004DGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61004DGS 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 TPS61004DGS?
For technical support, including TPS61004DGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61004DGS requirements.
6.How does Aetrix verify that TPS61004DGS is sourced from the original manufacturer or authorized distributors?
All TPS61004DGS 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 TPS61004DGS meets industry standards.
7.What is the process for return or replacement of TPS61004DGS?
All TPS61004DGS units undergo pre-shipment inspection (PSI). If there is an issue with TPS61004DGS, 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 TPS61004DGS part is unused and in its original packaging.
Return procedure for TPS61004DGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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