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Texas Instruments TPS61004DGSR
- Part No.:
- TPS61004DGSR
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS61004DGSR.pdf
- Description:
- IC REG BOOST 2.8V 1.3A 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
TPS61004DGSR from Texas Instruments is a fixed-output 3.0 V, non-synchronous boost converter optimized 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 system-level power management in portable medical devices and wireless headsets.
For engineers reviewing the TPS61004DGSR datasheet, TPS61004DGSR pinout, TPS61004DGSR application, or TPS61004DGSR equivalent, key selection criteria include minimum start-up voltage (0.8 V), output accuracy (±3% at 100 mA), integrated antiringing switch for EMI reduction, and compatibility with standard 33 µH inductors and ceramic output capacitors.
Technical Context
The TPS61004DGSR uses current-mode PWM control with a nominal 500 kHz oscillator frequency and transitions into power-save mode below ~10 mA load to maintain >85% efficiency at light loads. Its internal 1.1 A switch current limit (typical) and 0.27 Ω on-resistance enable stable operation down to 0.8 V input while supporting full-load start-up.
It implements undervoltage lockout (~0.7 V), integrated low-battery comparator (500 mV threshold), and an antiringing switch that clamps SW-node ringing to VBAT during discontinuous conduction mode-reducing radiated EMI without external snubbers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±3% at 100 mA load; enables direct replacement of 3.0 V LDOs in battery-powered systems. |
| Input Voltage Range | 0.8 V to 3.3 V; supports operation through full discharge of single NiMH/NiCd (0.9–1.4 V) or dual alkaline (1.8–3.2 V) cells. |
| Max Output Current | 100 mA @ 0.8 V input; 250 mA @ 1.8 V input-scales with input voltage to maximize usable battery energy. |
| Switch Current Limit | 1.1 A typical; protects internal MOSFET and external inductor during overload or short-circuit conditions. |
| Quiescent Current | 44 µA typical at VBAT = 0.8 V; minimizes standby drain in always-on portable applications. |
| Oscillator Frequency | 500 kHz nominal; balances inductor size, efficiency, and EMI performance for compact PCB layouts. |
| Shutdown Current | 0.2 µA typical; ensures negligible battery leakage when EN = GND in deep sleep modes. |
Pinout & Package
The TPS61004DGSR is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm, with exposed thermal pad for enhanced power dissipation in space-constrained designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-high logic control; pulls device into shutdown (0.2 µA IQ) when grounded, eliminating battery drain during system idle. |
| COMP (Pin 2) | Compensation node | Connects external R-C-C network to stabilize feedback loop; required for stable regulation across temperature and load. |
| FB (Pin 3) | Feedback input | No connection required-TPS61004DGSR uses internal resistor divider for fixed 3.0 V output; pin left floating per datasheet. |
| GND (Pin 4) | Power ground | Main return path for switch current and control circuitry; must be low-impedance copper pour tied to thermal pad. |
| VOUT (Pin 5) | Regulated output | 3.0 V supply rail; requires ≥22 µF ceramic output capacitor for ripple suppression and transient response. |
| LBO (Pin 10) | Open-drain LBO output | Asserts low when LBI < 500 mV; requires external pull-up to VOUT for microcontroller battery-low interrupt signaling. |
| LBI (Pin 9) | Low-battery input | Monitors scaled battery voltage; connect to GND if unused-floating LBI causes undefined LBO behavior. |
| NC/FBGND (Pin 8) | No-connect | Not bonded internally on TPS61004DGSR; leave unconnected-no grounding or routing required. |
| SW (Pin 7) | Switch node | Connects to inductor and Schottky diode anode; high dv/dt node requiring tight layout and minimal trace length. |
| VBAT (Pin 6) | Battery input | Primary power source; accepts 0.8–3.3 V; requires ≥10 µF ceramic input capacitor placed near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Full-load start-up at 0.8 V | Enables reliable power-up from deeply discharged NiMH cells (down to 0.8 V), extending usable battery life beyond conventional boost ICs. |
| Integrated antiringing switch | Dampens SW-node ringing during DCM without external components, reducing radiated EMI by >10 dB compared to discrete snubber solutions. |
| Power-save mode | Reduces switching frequency at light loads, maintaining >85% efficiency at 1 mA output-critical for intermittent-sensing applications. |
| Low-battery comparator | Provides system-level battery monitoring via LBI/LBO pins with 500 mV threshold and 10 mV hysteresis-enables graceful shutdown before brownout. |
| 10-pin VSSOP package | 3.0 × 3.0 mm footprint with thermal pad supports high-density portable PCBs while enabling manual rework and AOI inspection. |
Applications
| Wireless Headsets | Portable Medical Diagnostics |
|---|---|
Use Scenario: Compact Bluetooth audio headset powered by single AAA alkaline cell (1.5 V fresh, 0.9 V depleted). IC Role / Device Role / Timing Role: Primary 3.0 V power rail generator; replaces inefficient linear regulators to extend talk time by 40%. Use Value: 0.8 V start-up and 44 µA quiescent current enable operation until battery reaches 0.85 V, adding ~12% runtime versus competing boost converters. | Use Scenario: Handheld blood glucose meter using single NiMH rechargeable cell (1.2 V nominal, 0.9 V cutoff). IC Role / Device Role / Timing Role: Supplies stable 3.0 V to ADC, LCD, and microcontroller; LBO triggers low-battery alert before measurement error occurs. Use Value: Integrated LBI/LBO eliminates need for external voltage supervisor IC, reducing BOM count and board area by 25%. |
| Remote Controls | MP3 Players |
Use Scenario: IR remote with dual alkaline cells (3.0 V fresh, 1.8 V end-of-life) powering LED backlight and RF transmitter. IC Role / Device Role / Timing Role: Boosts declining battery voltage to maintain consistent 3.0 V for RF transmission amplitude and LED brightness. Use Value: 250 mA capability at 1.8 V input ensures full RF output power even at battery EOL, preventing range degradation. | Use Scenario: Flash-based MP3 player using single Li-ion cell (3.7 V) stepped down to 3.0 V for audio DAC and memory interface. IC Role / Device Role / Timing Role: Provides regulated 3.0 V rail independent of battery SOC; COMP pin allows dynamic loop tuning for varying load transients. Use Value: 500 kHz fixed frequency enables use of small 33 µH inductor (2.5 × 2.0 mm), reducing solution height to <1.2 mm for ultra-thin form factors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61005DGSR | Fixed 3.3 V output; 300 mV higher nominal VOUT; identical pinout, package, and electrical specs otherwise. | Suitable where system requires 3.3 V logic rail instead of 3.0 V; not drop-in for 3.0 V-sensitive analog circuits. | Select TPS61005DGSR only if target VOUT is 3.3 V and tolerance allows +10% over 3.0 V nominal. |
| MAX756CSA+ | 500 kHz fixed frequency; 3.3 V fixed output; higher 100 µA quiescent current; no integrated LBI/LBO. | Lacks battery monitoring; requires external supervisor for low-battery warning; less efficient below 1 mA load. | Choose MAX756CSA+ only when LBI/LBO functionality is unnecessary and 3.3 V output is acceptable. |
Compared with TPS61004DGSR, TPS61005DGSR offers identical performance at 3.3 V but cannot regulate to 3.0 V, while MAX756CSA+ lacks battery monitoring and consumes more quiescent current-making TPS61004DGSR optimal for 3.0 V, battery-aware portable designs.
Availability
TPS61004DGSR is available at Aetrix Electronics and suitable for wireless headsets, portable medical diagnostics, remote controls, and MP3 players requiring stable component supply across production lifecycles.
Supply support for TPS61004DGSR 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.
The TPS6100x family was engineered specifically for ultra-low-voltage battery-powered applications-delivering high efficiency, full-load start-up, and integrated system supervision in minimal footprint packages.
FAQ
What is the minimum input voltage required for TPS61004DGSR to start switching?
The TPS61004DGSR starts switching at 0.8 V input voltage under full load (100 mA), as specified in the Recommended Operating Conditions table. This enables operation from deeply discharged single-cell batteries. The device remains functional down to 0.8 V input during steady-state operation, with undervoltage lockout disabling the regulator only below ~0.7 V. Startup behavior is verified across –40°C to 85°C ambient temperature.
Does TPS61004DGSR require external compensation components?
Yes, the TPS61004DGSR requires an external R-C-C compensation network connected to the COMP pin (Pin 2) to stabilize the control loop. The datasheet provides design equations and example values based on selected inductor and output capacitor. Unlike fully integrated regulators, this compensation is mandatory for stable regulation across all load and temperature conditions.
Can the FB pin on TPS61004DGSR be used to adjust the output voltage?
No, the FB pin on TPS61004DGSR must remain unconnected. It is reserved for adjustable-output variants (TPS61000/TPS61007) only. The TPS61004DGSR has an internal resistor divider set for fixed 3.0 V output; connecting external resistors to FB will disrupt regulation and may cause output instability or damage.
How does the low-battery detection work on TPS61004DGSR?
The TPS61004DGSR uses the LBI (Pin 9) and LBO (Pin 10) pins for low-battery detection: LBI compares applied voltage to an internal 500 mV reference, and LBO asserts open-drain low when LBI falls below that threshold. For basic detection, connect LBI to GND to disable the function; for active monitoring, use a resistor divider from VBAT to GND to scale battery voltage to 500 mV at LBI.
Is TPS61004DGSR compatible with ceramic output capacitors?
Yes, the TPS61004DGSR is explicitly designed for ceramic output capacitors, requiring a minimum of 22 µF rated at ≥10 V. Ceramic capacitors provide low ESR and fast transient response, which are essential for stable regulation and meeting the ±3% output ripple specification. Tantalum or aluminum electrolytic capacitors are not recommended due to higher ESR and reliability concerns.
TPS61004DGSR 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:
- 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
TPS61004DGSR FAQ
1.How can I place an order for TPS61004DGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61004DGSR 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 TPS61004DGSR reliable?
The price and inventory of TPS61004DGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61004DGSR is usually 5 days.
3.What payment methods are accepted for TPS61004DGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61004DGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61004DGSR?
TPS61004DGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61004DGSR 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 TPS61004DGSR?
For technical support, including TPS61004DGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61004DGSR requirements.
6.How does Aetrix verify that TPS61004DGSR is sourced from the original manufacturer or authorized distributors?
All TPS61004DGSR 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 TPS61004DGSR meets industry standards.
7.What is the process for return or replacement of TPS61004DGSR?
All TPS61004DGSR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61004DGSR, 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 TPS61004DGSR part is unused and in its original packaging.
Return procedure for TPS61004DGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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