My Inquiry
My Account
Texas Instruments TPS61002DGSG4
- Part No.:
- TPS61002DGSG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS61002DGSG4.pdf
- Description:
- IC REG BOOST 1.8V 1.3A 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,118
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS61002DGSG4 from Texas Instruments is a fixed-output 2.5 V, non-synchronous boost converter optimized for single- or dual-cell battery systems. It delivers up to 250 mA output current from 1.8 V input, starts up into full load at 0.9 V, and integrates low-battery detection (LBI/LBO) and antiringing switch functionality for EMI reduction. It is used in portable medical diagnostics and wireless headsets requiring stable low-voltage rail generation.
For engineers reviewing the TPS61002DGSG4 datasheet, TPS61002DGSG4 pinout, TPS61002DGSG4 application, or TPS61002DGSG4 equivalent, key selection criteria include minimum startup voltage (0.9 V), fixed 2.5 V output accuracy (±3% over load/temperature), integrated low-battery comparator threshold (500 mV), and MSOP-10 package compatibility with space-constrained handheld designs.
Technical Context
The TPS61002DGSG4 employs a fixed-frequency (500 kHz) current-mode PWM controller with automatic transition into power-save mode below ~10 mA load to sustain >85% efficiency at light loads. Its internal 1.1 A switch current limit and UVLO (~0.7 V shutdown, 0.9 V startup) enable reliable operation across NiMH/NiCd/alkaline discharge curves.
It integrates a dedicated antiringing switch that clamps SW-to-VBAT during discontinuous conduction mode, suppressing inductor ringing and reducing radiated EMI without external snubbers. The LBI/LBO circuit provides programmable low-battery warning via external resistor divider, active only when EN is high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±3% over full temperature and load range - ensures stable logic supply for microcontrollers in battery-powered devices. |
| Startup Input Voltage | 0.9 V at full load - enables operation deep into alkaline/NiMH discharge, extending usable battery life. |
| Max Output Current | 250 mA from 1.8 V input - supports moderate-power peripherals like OLED displays or RF transceivers. |
| Switch Current Limit | 1.1 A typical - sets safe inductor peak current margin; requires inductor saturation current >1.1 A. |
| Oscillator Frequency | 500 kHz nominal - balances efficiency, inductor size, and EMI filtering requirements. |
| Quiescent Current | 44 µA typical - minimizes standby drain on primary batteries during system sleep. |
| Shutdown Current | 0.2 µA max - preserves battery charge during long-term storage or off-state. |
Pinout & Package
TPS61002DGSG4 is housed in a 10-pin VSSOP (DGS) package, 3.00 mm × 3.00 mm body size, with exposed thermal pad (not electrically connected). Pin numbering follows standard MSOP top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-high digital control: drives converter ON/OFF; <0.2×VBAT = low, >0.8×VBAT = high. |
| COMP (Pin 2) | Compensation node | Connects external R-C-C network to stabilize control loop; critical for transient response and stability. |
| FB (Pin 3) | Feedback input | No connection required - TPS61002DGSG4 has internal 2.5 V divider; pin left floating per datasheet. |
| GND (Pin 4) | Power ground | Main return path for VOUT, VBAT, and internal circuits; must be low-impedance PCB plane. |
| VOUT (Pin 5) | Regulated output | Delivers fixed 2.5 V to load; requires ≥22 µF ceramic output capacitor for ripple and stability. |
| LBO (Pin 10) | Open-drain low-battery output | Sinks current when LBI voltage drops below 500 mV; requires external pullup to VOUT. |
| LBI (Pin 9) | Low-battery input | Monitors scaled battery voltage; threshold = 500 mV ±15 mV; connect to GND if unused. |
| NC/FBGND (Pin 8) | No-connect | Not bonded internally for TPS61002DGSG4; leave unconnected (not grounded). |
| SW (Pin 7) | Switch node | Connects to inductor/diode junction; carries high di/dt; requires short, wide trace and local decoupling. |
| VBAT (Pin 6) | Battery input | Accepts 0.8–3.3 V; requires ≥10 µF ceramic input capacitor placed near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Start-up into full load at 0.9 V | Enables functional operation even as single alkaline cell discharges to 0.9 V, maximizing battery utilization. |
| Integrated antiringing switch | Clamps SW node to VBAT during DCM, eliminating external snubber and reducing radiated EMI by >10 dB. |
| Power-save mode | Reduces switching frequency at light loads, maintaining >85% efficiency down to 1 mA output current. |
| Low-battery comparator with hysteresis | 500 mV threshold ±15 mV with 10 mV hysteresis prevents chatter during battery voltage sag under pulse load. |
| 10-pin VSSOP package | 3.0 mm × 3.0 mm footprint supports high-density layouts in compact consumer electronics. |
Applications
| Portable Medical Diagnostics | Wireless Headsets |
|---|---|
|
Use Scenario: Handheld glucose meter powered by single AAA alkaline cell. IC Role / Device Role / Timing Role: Generates stable 2.5 V rail for ADC reference and microcontroller core from 0.9–1.6 V battery. Use Value: Enables accurate 16-bit ADC measurements across full battery discharge curve without brownout. |
Use Scenario: Bluetooth headset with voice codec and RF transceiver operating from NiMH cell. IC Role / Device Role / Timing Role: Supplies regulated 2.5 V to audio DAC and BLE SoC I/O domain. Use Value: Maintains SNR >95 dB and BLE link stability despite battery voltage drop from 1.4 V to 0.9 V. |
| Remote Controls | MP3 Players |
|
Use Scenario: Advanced IR remote with LCD display and touch interface. IC Role / Device Role / Timing Role: Powers 2.5 V LCD bias and capacitive touch controller from single alkaline cell. Use Value: Eliminates need for separate coin-cell backup; extends usable life to 12+ months per battery. |
Use Scenario: Flash-based MP3 player using single NiMH AA cell. IC Role / Device Role / Timing Role: Provides 2.5 V supply to NAND flash interface and audio amplifier. Use Value: Supports 20-hour playback by sustaining regulation down to 0.9 V input with <50 µA quiescent draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61022RGET | Higher 3.6 V max input, 2.0 A switch, 2.0 MHz switching - requires smaller inductor but higher IQ (25 µA vs 44 µA). | Targets USB-powered or higher-current apps (e.g., portable speakers); less optimal for ultra-low-IQ alkaline use. | Choose TPS61022RGET only if >500 mA output or >2.5 V input range is required; otherwise TPS61002DGSG4 offers better light-load efficiency and lower BOM cost. |
| MAX77801AETE+ | Integrated Li-ion charger + boost; fixed 2.5 V output; 1.2 A switch; 2.2 MHz - adds charging function but larger 16-pin TQFN. | Designed for rechargeable single-cell systems (e.g., wearables); not suitable for primary battery-only designs. | Select MAX77801AETE+ only when battery charging capability is needed; TPS61002DGSG4 remains preferred for disposable or non-rechargeable applications due to simpler layout and lower cost. |
Compared with TPS61022RGET and MAX77801AETE+, the TPS61002DGSG4 delivers superior light-load efficiency (<50 µA IQ), minimal external component count (no charging circuitry), and proven reliability in primary-cell medical and audio devices - making it the optimal choice for cost-sensitive, long-life, low-power boost applications.
Availability
TPS61002DGSG4 is available at Aetrix Electronics and suitable for portable medical diagnostics, wireless headsets, remote controls, and MP3 players requiring stable component supply with consistent parametric performance and long-term lifecycle support.
Supply support for TPS61002DGSG4 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 manufacturing.
The TPS6100x family was engineered specifically for ultra-low-voltage battery-powered systems, delivering high-efficiency boost conversion from 0.8 V input while integrating essential system functions like low-battery monitoring and EMI suppression.
FAQ
What is the minimum input voltage required for TPS61002DGSG4 to start up under full load?
The TPS61002DGSG4 starts up into full load at 0.9 V across the full temperature range (–40°C to 85°C). Once started, it continues regulating down to 0.8 V input. This specification is verified per SLVS279D Section 7.5 and enables operation deep into alkaline and NiMH battery discharge profiles. The TPS61002DGSG4 achieves this via optimized UVLO hysteresis and low-threshold internal circuitry.
Can the output voltage of TPS61002DGSG4 be adjusted externally?
No, the TPS61002DGSG4 has a factory-trimmed fixed 2.5 V output. Its FB pin is not connected internally and must remain unconnected (floating) per datasheet guidance. Adjustable versions (e.g., TPS61000 or TPS61007) require external resistor dividers, but the TPS61002DGSG4 uses an integrated resistive divider - no external components affect its output voltage.
How does the low-battery detection function work on TPS61002DGSG4?
The TPS61002DGSG4 implements low-battery detection via LBI (Pin 9) and LBO (Pin 10). When the voltage at LBI falls below 500 mV ±15 mV, LBO pulls low (open-drain). LBI must be connected to a resistor divider from VBAT to GND to set the battery threshold; if unused, connect LBI to GND. The function is disabled when EN = low.
What is the purpose of the NC/FBGND pin (Pin 8) on TPS61002DGSG4?
Pin 8 (NC/FBGND) is a no-connect terminal for the TPS61002DGSG4. It is not bonded internally and serves no electrical function. Unlike the TPS61007, which uses this pin as FBGND, the TPS61002DGSG4 has no feedback ground requirement. Leaving Pin 8 unconnected is mandatory - grounding it may cause undefined behavior or damage.
Does TPS61002DGSG4 require an external compensation network?
Yes, the TPS61002DGSG4 requires an external R-C-C compensation network connected to the COMP pin (Pin 2) to stabilize the control loop. This network sets phase margin and transient response. Typical values are 10 kΩ, 100 pF, and 33 nF, as shown in Figure 17 of SLVS279D. Omitting or mis-sizing this network risks oscillation or poor load-step response.
TPS61002DGSG4 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):
- 1.8V
- Voltage - Output (Min/Fixed):
- 1.8V
- 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
TPS61002DGSG4 FAQ
1.How can I place an order for TPS61002DGSG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61002DGSG4 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 TPS61002DGSG4 reliable?
The price and inventory of TPS61002DGSG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61002DGSG4 is usually 5 days.
3.What payment methods are accepted for TPS61002DGSG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61002DGSG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61002DGSG4?
TPS61002DGSG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61002DGSG4 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 TPS61002DGSG4?
For technical support, including TPS61002DGSG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61002DGSG4 requirements.
6.How does Aetrix verify that TPS61002DGSG4 is sourced from the original manufacturer or authorized distributors?
All TPS61002DGSG4 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 TPS61002DGSG4 meets industry standards.
7.What is the process for return or replacement of TPS61002DGSG4?
All TPS61002DGSG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61002DGSG4, 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 TPS61002DGSG4 part is unused and in its original packaging.
Return procedure for TPS61002DGSG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS61002DGSG4 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…
