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Texas Instruments TPS61024DRCR
- Part No.:
- TPS61024DRCR
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61024DRCR.pdf
- Description:
- IC REG BOOST 3V 1.5A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,740
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Product details
Overview
TPS61024DRCR from Texas Instruments is a fixed-output 3.3-V synchronous boost converter IC designed for single-cell battery-powered systems. It delivers up to 200 mA output current from 0.9-V to 6.5-V input, features 96% peak efficiency, 1500-mA switch current limit, and integrated low-battery comparator (LBI/LBO) for power management in portable medical devices and audio players.
For engineers reviewing the TPS61024DRCR datasheet, TPS61024DRCR pinout, TPS61024DRCR application, or TPS61024DRCR equivalent, key selection criteria include its 3.3-V fixed output, VSON-10 package thermal performance (RθJA = 47.2°C/W), down-regulation capability when VIN ≥ VOUT, and compatibility with alkaline/NiMH/Li-ion battery discharge profiles down to 0.9 V.
Technical Context
The TPS61024DRCR implements a fixed-frequency (480–720 kHz) PWM controller with synchronous rectification using integrated N- and P-channel MOSFETs. Its multiple feed-forward control loop monitors VIN, VOUT, and NMOS switch voltage drop to dynamically adjust duty cycle-bypassing slow error-amplifier response for fast transient handling.
It supports three operational modes: standard boost (VIN < VOUT), automatic down-regulation (VIN ≥ VOUT), and Power Save Mode (enabled via PS pin low). Down-regulation maintains 3.3-V regulation even at VIN = 4.2 V (e.g., Li-ion fully charged), with PMOS conduction losses managed via thermal shutdown (140°C trigger) and junction-to-board thermal resistance of 21.6°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±3% total accuracy; stable under line/load regulation (0.6% each) |
| Input Voltage Range | 0.9 V to 6.5 V; enables operation from deeply discharged alkaline (0.9 V) to Li-ion (4.2 V) or 5-V rail |
| Switch Current Limit | 1500 mA typical; sets maximum inductor peak current for reliable 200-mA output into 3.3-V load |
| Quiescent Current | 25 µA typical; minimizes battery drain in active standby, critical for multi-day portable runtime |
| Efficiency Peak | 96% at mid-load; achieved via synchronous rectification replacing Schottky diode, reducing conduction loss |
| Switching Frequency | 480–720 kHz; balances inductor size (6.8 µH typical) and EMI; anti-ringing circuit suppresses SW node oscillation |
| Thermal Resistance | RθJA = 47.2°C/W; requires PowerPAD™ soldered to PGND plane for safe 125°C max junction operation |
Pinout & Package
TPS61024DRCR uses a 3.0 mm × 3.0 mm VSON-10 package with exposed PowerPAD™ thermal pad (must be soldered to PGND for thermal integrity).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-high logic: tie to VBAT to enable; GND disables converter and disconnects load from battery |
| VOUT (Pin 2) | Regulated output | 3.3-V power rail; capable of sourcing 200 mA while maintaining regulation during battery discharge |
| FB (Pin 3) | Feedback input | Not used on TPS61024DRCR (fixed 3.3-V version); must be left unconnected per datasheet |
| LBO (Pin 4) | Low-battery open-drain output | Active-low flag; requires external 1-MΩ pull-up; signals battery depletion when LBI threshold crossed |
| GND (Pin 5) | Logic ground | Reference for EN, PS, LBI inputs and internal control circuitry; separate from PGND to avoid noise coupling |
| VBAT (Pin 6) | Battery input | Primary power source; supports 0.9–6.5 V; UVLO disables startup below ~0.8 V to prevent malfunction |
| LBI (Pin 7) | Low-battery input | Programmable threshold (500 mV ±10 mV hysteresis); connect resistor divider from VBAT to set cutoff voltage |
| PS (Pin 8) | Power Save mode control | Low = enable variable-frequency light-load mode; high = force fixed-frequency operation (disabled in down-regulation) |
| SW (Pin 9) | Boost switch node | Connects to inductor and catch diode replacement; high dv/dt node requiring tight layout and anti-ringing clamp |
| PGND (Pin 10) | Power ground | Source of NMOS switch; must connect to PCB ground plane at single point near GND pin to minimize noise |
Key Features
| Feature | Design Value |
|---|---|
| 96% peak efficiency | Synchronous rectification eliminates Schottky forward drop, enabling >200 mA from 0.9-V alkaline cell |
| Down-regulation capability | Maintains 3.3-V output even when VIN = 4.2 V (Li-ion full charge), avoiding need for external LDO |
| Integrated low-battery detection | LBI/LBO circuit with 500-mV threshold and 10-mV hysteresis enables programmable battery cutoff without external comparators |
| Load disconnect during shutdown | Internal circuit isolates VOUT from VBAT when EN = low, preventing battery drain in system sleep states |
| Anti-ringing switch | Clamps SW node to VBAT during discontinuous conduction, reducing EMI and radiated emissions in compact layouts |
Applications
| Portable Audio Players | Personal Medical Devices |
|---|---|
Use Scenario: Powering DSP, DAC, and headphone amplifier from single AA/AAA alkaline cell. IC Role / Device Role / Timing Role: Primary 3.3-V power supply with dynamic load handling across playback, pause, and standby. Use Value: 96% efficiency extends battery life to >20 hours; down-regulation avoids brownout when fresh cells exceed 3.3 V. |
Use Scenario: Supplying glucose meter MCU and LCD backlight from one Li-ion cell. IC Role / Device Role / Timing Role: Regulated 3.3-V rail for precision analog front-end and digital logic during measurement cycles. Use Value: LBI/LBO enables accurate end-of-life battery warning; 0.9-V start-up supports full cell discharge range. |
| Camera White LED Flash | PDAs and Handheld Terminals |
Use Scenario: Driving white LED array requiring stable 3.3-V bias during short-duration flash pulses. IC Role / Device Role / Timing Role: High-efficiency boost source with fast transient response to LED current steps. Use Value: 1500-mA switch limit supports brief 500-mA LED bursts; anti-ringing reduces EMI near image sensor. |
Use Scenario: Providing main system rail for ARM-based PDA running OS, touchscreen, and wireless comms. IC Role / Device Role / Timing Role: Core power IC managing battery-to-3.3-V conversion across varying CPU loads. Use Value: Power Save Mode cuts quiescent current to 25 µA in idle, extending standby time to weeks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61025DRCR | Fixed 5-V output; same 1500-mA switch limit, 0.9–6.5-V input, and VSON-10 package | Used where system requires 5-V peripherals (USB, sensors) instead of 3.3-V logic rails | Select TPS61025DRCR only if 5-V output is mandatory; not a drop-in replacement for 3.3-V designs. |
| TPS61020DRCR | Adjustable output (1.8–5.5 V via FB resistor divider); 1500-mA switch limit; identical input range and package | Required when output voltage must be tuned post-design or support multiple rail voltages | Choose TPS61020DRCR for flexibility; adds two external resistors but loses fixed 3.3-V simplicity and BOM count. |
Compared with TPS61024DRCR, TPS61025DRCR provides higher output voltage for 5-V interfaces but cannot regulate 3.3 V, while TPS61020DRCR offers design flexibility at the cost of added components and calibration effort-neither is pin-compatible nor functionally interchangeable without schematic revision.
Availability
TPS61024DRCR is available at Aetrix Electronics and suitable for portable audio players, personal medical devices, camera flash modules, and PDAs requiring stable component supply across long-lifecycle consumer and industrial programs.
Supply support for TPS61024DRCR 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for battery-operated systems.
The TPS6102x family was designed specifically for ultra-low-voltage, high-efficiency boost conversion in space-constrained portable electronics powered by single- to three-cell batteries.
FAQ
What is the output voltage tolerance of the TPS61024DRCR?
The TPS61024DRCR has a fixed 3.3-V output with ±3% total accuracy, including line regulation (0.6%), load regulation (0.6%), and temperature drift. This specification ensures stable operation for 3.3-V microcontrollers and sensors across battery discharge and temperature ranges from –40°C to 125°C.
Does the TPS61024DRCR support input voltages higher than its 3.3-V output?
Yes, the TPS61024DRCR supports down-regulation: it maintains regulated 3.3-V output even when input exceeds 3.3 V (e.g., 4.2-V Li-ion). In this mode, the internal PMOS operates as a linear pass element, increasing conduction loss-thermal design must account for this behavior.
How is low-battery detection implemented on the TPS61024DRCR?
The TPS61024DRCR uses the LBI pin to monitor battery voltage via an external resistor divider. When the divided voltage drops below 500 mV (with 10-mV hysteresis), the open-drain LBO pin pulls low. The LBI pin must never float and should be tied to GND or VBAT if unused.
What is the purpose of the PS pin on the TPS61024DRCR?
The PS pin controls Power Save Mode: pulled low to enable variable-frequency operation at light loads (improving efficiency), or tied to VBAT to force fixed-frequency PWM. Note that Power Save Mode remains active during down-regulation regardless of PS state.
Can the TPS61024DRCR be used with a 0.9-V alkaline battery?
Yes, the TPS61024DRCR starts up from 0.9 V and sustains regulation down to this voltage, enabling full utilization of single-cell alkaline/NiMH batteries. Its 25-µA quiescent current and load disconnect in shutdown maximize usable battery capacity.
TPS61024DRCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.9V
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 1.5A (Switch)
- Frequency - Switching:
- 600kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS61024DRCR FAQ
1.How can I place an order for TPS61024DRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61024DRCR 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 TPS61024DRCR reliable?
The price and inventory of TPS61024DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61024DRCR is usually 5 days.
3.What payment methods are accepted for TPS61024DRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61024DRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61024DRCR?
TPS61024DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61024DRCR 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 TPS61024DRCR?
For technical support, including TPS61024DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61024DRCR requirements.
6.How does Aetrix verify that TPS61024DRCR is sourced from the original manufacturer or authorized distributors?
All TPS61024DRCR 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 TPS61024DRCR meets industry standards.
7.What is the process for return or replacement of TPS61024DRCR?
All TPS61024DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61024DRCR, 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 TPS61024DRCR part is unused and in its original packaging.
Return procedure for TPS61024DRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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