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Texas Instruments TPS61032PWP
- Part No.:
- TPS61032PWP
- Manufacturer:
- Texas Instruments
- Package:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS61032PWP.pdf
- Description:
- IC REG BOOST 5V 3.6A 16HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:133
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Product details
Overview
TPS61032PWP from Texas Instruments is a synchronous boost DC-DC converter IC designed for single-cell Li-ion or dual/triple-cell alkaline/NiMH battery-powered systems. It delivers up to 1000 mA at 5 V from 1.8-V input, features 96% peak efficiency, 600-kHz fixed-frequency PWM control, and integrated low-battery comparator with LBI/LBO pins. It is used in portable electronics requiring regulated high-voltage rail generation from low-voltage batteries.
For engineers reviewing the TPS61032PWP datasheet, TPS61032PWP pinout, TPS61032PWP application, or TPS61032PWP equivalent, key selection considerations include its adjustable output voltage capability (via FB pin), 4-A switch current limit, Power Save mode for light-load efficiency, load disconnect during shutdown, and QFN-16 (4 mm × 4 mm) thermal performance with PowerPAD™.
Technical Context
The TPS61032PWP implements a fixed-frequency, multiple feedforward PWM controller that monitors input voltage, output voltage, and NMOS switch voltage drop to directly adjust duty cycle-bypassing slow error-amplifier loop response for fast transient handling. Its synchronous rectification uses integrated N-channel and P-channel MOSFETs with 55-mΩ on-resistance per switch.
It integrates antiringing circuitry to clamp SW-node ringing in discontinuous conduction mode, supports external synchronization via SYNC pin (500–700 kHz range), and includes undervoltage lockout (~1.6 V), overtemperature protection (140°C), and soft-start with precharge and reduced startup current limiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 5.5 V - supports full discharge curve of one-cell Li-ion (2.5–4.2 V) and two/three-cell alkaline/NiMH (1.8–5.5 V) |
| Output Current Capability | Up to 1000 mA at 5 V - enables powering USB-peripheral-level loads from low-input batteries |
| Switch Current Limit | 4000 mA typical - limits peak inductor current to prevent saturation and ensure stable operation under heavy load |
| Feedback Reference Voltage | 500 mV ±10 mV - sets precise output regulation point for adjustable configurations using external resistor divider |
| Switching Frequency | 600 kHz nominal - balances efficiency, inductor size, and EMI; synchronizable to external clock within ±20% |
| Quiescent Current | 20 µA typical - minimizes battery drain in active standby, critical for always-on portable devices |
| Shutdown Current | 0.1–1 µA - ensures near-zero battery leakage when disabled, preserving shelf life |
Pinout & Package
TPS61032PWP is housed in a thermally enhanced 16-pin QFN package (4.00 mm × 4.00 mm) with exposed PowerPAD™ thermal pad requiring PCB solder connection to PGND for optimal power dissipation and junction temperature control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 9) | Enable input | Active-high logic control: connects to VBAT to enable regulator; ties to GND to fully isolate load and reduce battery drain to sub-µA |
| FB (Pin 12) | Voltage feedback input | Monitors output via resistor divider; internal 500-mV reference enables precise adjustable output voltage configuration (e.g., 3.3 V, 5 V) |
| GND (Pin 11) | Control ground | Reference node for all logic and analog circuitry; must be connected separately from PGND at single-point star ground near GND pin |
| LBI (Pin 7) | Low-battery comparator input | Accepts scaled battery voltage; triggers LBO when input drops below 500 mV (10-mV hysteresis); requires external resistive divider for threshold programming |
| LBO (Pin 10) | Low-battery comparator output | Open-drain flag signal - pulls low when LBI threshold violated; requires external pullup (e.g., 1 MΩ) to VOUT or system rail |
| PGND (Pins 3,4,5) | Power ground | Return path for high-current switch and inductor; separate from control GND to avoid ground shift and noise coupling into feedback loop |
| SYNC (Pin 8) | Synchronization/Power Save control | Low = enable Power Save mode (pulse-skipping); high = fixed-frequency operation; external clock input (500–700 kHz) forces synchronization |
| SW (Pins 1,2) | Boost switch node | Connection point for external inductor; carries high di/dt switching current; integrated antiringing switch clamps ringing to VBAT in DCM |
| VBAT (Pin 6) | Input supply | Primary power source input; includes undervoltage lockout (~1.6 V) to prevent malfunction during deep discharge |
| VOUT (Pins 13,14,15) | Regulated output | High-current output rail; three parallel pins reduce IR drop and improve thermal distribution for ≥1-A loads |
Key Features
| Feature | Design Value |
|---|---|
| 96% peak efficiency synchronous rectification | Replaces lossy Schottky diode with integrated NMOS/PMOS switches (55-mΩ RDS(on)), minimizing conduction loss in portable battery applications |
| Load disconnect during shutdown | Special circuit isolates VOUT from VBAT when EN = low - prevents battery depletion through back-gate diode conduction in conventional synchronous designs |
| Integrated low-EMI antiringing switch | Clamps SW-node voltage to VBAT during discontinuous conduction mode, suppressing high-frequency ringing and reducing radiated EMI without external snubbers |
| Programmable low-battery detection | LBI/LBO interface allows user-defined battery depletion threshold (e.g., 2.8 V cutoff for Li-ion) via external resistor divider, enabling system-level battery management |
| Thermal-enhanced QFN with PowerPAD™ | 4 mm × 4 mm footprint with exposed thermal pad achieves 19.4°C/W junction-to-board resistance - supports 1-A continuous output in compact layouts without heatsinks |
Applications
| MP3 Player Power Management | PDA Main Rail Generation |
|---|---|
Use Scenario: Portable audio player powered by single-cell Li-ion battery (2.5–4.2 V) requiring stable 3.3-V logic rail and 5-V USB charging port support. IC Role / Device Role / Timing Role: Synchronous boost converter generating regulated 5-V output from declining battery voltage; provides clean, efficient high-side rail for USB PHY and codec. Use Value: Maintains full 1000-mA output capability down to 1.8-V input, enabling extended playback time and consistent USB enumeration even at end-of-discharge. |
Use Scenario: Handheld PDA with dual-rail requirement: 3.3-V core logic and 5-V display backlight driver, operating from two alkaline cells (2.4–3.2 V). IC Role / Device Role / Timing Role: Primary DC-DC step-up regulator delivering 5-V output; FB pin configured for fixed 5-V regulation; LBO signals low battery to OS before system reset. Use Value: 96% efficiency at mid-load preserves battery life; Power Save mode extends standby duration; load disconnect prevents parasitic drain during sleep mode. |
| Wireless Headset Charging Circuit | Industrial Sensor Node Boost Supply |
Use Scenario: Bluetooth headset with micro-USB charging port requiring 5-V input for linear charger IC, powered by built-in 3.7-V Li-polymer cell. IC Role / Device Role / Timing Role: Boost converter supplying 5-V rail to USB charger IC during wired charging; EN controlled by system MCU to gate power only during charge events. Use Value: Shutdown current <1 µA eliminates quiescent drain when not charging; SYNC pin enables synchronization with system clock to avoid beat frequencies in RF-sensitive audio band. |
Use Scenario: Battery-operated wireless sensor node (LoRaWAN/NB-IoT) using two AA cells (1.8–3.0 V) to power 3.3-V MCU and 5-V RF transceiver. IC Role / Device Role / Timing Role: High-efficiency boost stage providing 5-V burst-power rail for RF transmission; LBI monitors battery health to trigger graceful shutdown before brownout. Use Value: 4-A switch current limit supports short-duration 500-mA RF transmit peaks; thermal design (RθJB = 19.4°C/W) sustains reliability in sealed enclosures without airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61031PWP | Fixed 5-V output (no FB pin required); identical package, efficiency, and current capability | Eliminates external resistor divider but loses output voltage flexibility; suitable for cost-sensitive 5-V-only designs | Select when output voltage is fixed at 5 V and board space for FB network is constrained |
| TPS61291DRVR | Lower quiescent current (1.2 µA), smaller 6-pin WSON package, 2.5-A switch limit, but max 4.5-V output | Better for ultra-low-power coin-cell applications; lacks LBO/LBI and SYNC functionality; not pin-compatible | Choose for sub-µA standby requirements and space-constrained designs where 5-V output is not needed |
Compared with TPS61031PWP, the TPS61032PWP offers adjustable output voltage at the cost of two external resistors; compared with TPS61291DRVR, it provides higher output voltage capability, integrated battery monitoring, and synchronization-making it better suited for multi-rail portable systems with dynamic power management needs.
Availability
TPS61032PWP is available at Aetrix Electronics and suitable for portable medical monitors, handheld test equipment, and battery-powered IoT gateways requiring stable component supply across long production lifecycles and varying battery chemistries.
Supply support for TPS61032PWP 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 reliability.
The TPS6103x product line was engineered specifically for high-efficiency, low-quiescent-current boost conversion in space-constrained portable electronics powered by primary or rechargeable batteries - emphasizing thermal robustness, battery-aware protection, and seamless integration into compact PCB layouts.
FAQ
What is the maximum output voltage supported by the TPS61032PWP?
The TPS61032PWP supports an adjustable output voltage up to 5.5 V, set via the FB pin and external resistor divider. Its internal feedback reference is 500 mV ±10 mV, and the device maintains regulation accuracy within ±3% total output voltage tolerance across line, load, and temperature conditions. Fixed-output variants (e.g., TPS61031PWP) are also available but require different part numbers.
Does the TPS61032PWP provide true load disconnect during shutdown?
Yes, the TPS61032PWP implements active load disconnect during shutdown: when EN is pulled low, its internal circuitry isolates VOUT from VBAT by disconnecting the cathode of the high-side PMOS back-gate diode. This prevents reverse current flow and reduces shutdown current to 0.1–1 µA - significantly lower than conventional synchronous boost converters that leak through the body diode.
How does the Power Save mode function in the TPS61032PWP?
In Power Save mode (enabled by pulling SYNC low), the TPS61032PWP operates in pulse-skipping mode: it delivers energy only when output voltage falls below a threshold, then returns to sleep until the next droop event. This maintains >85% efficiency at loads below 10 mA while keeping quiescent current at 20 µA. The mode can be disabled by tying SYNC to VBAT to enforce fixed 600-kHz operation.
What thermal performance can be expected from the TPS61032PWP in a standard 2-layer PCB layout?
On a standard 2-layer PCB with 1 oz copper and the PowerPAD™ soldered to a 200-mm² PGND copper pour, the TPS61032PWP achieves a junction-to-board thermal resistance (RθJB) of 19.4°C/W. At 1000 mA output and 3.3-V input, this allows sustained operation with ≤35°C junction rise above ambient - well within the –40°C to 125°C operating virtual junction range specified in the datasheet.
Can the TPS61032PWP be synchronized to an external clock, and what are the valid frequency ranges?
Yes, the TPS61032PWP accepts an external clock signal on the SYNC pin to synchronize switching. Valid input frequencies range from 500 kHz to 700 kHz - corresponding to ±20% of its nominal 600-kHz oscillator frequency. The external clock must have a duty cycle between 30% and 70%, and must be referenced to GND. Synchronization helps reduce beat frequencies and EMI in systems with multiple switching regulators.
TPS61032PWP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 3.6A (Switch)
- Frequency - Switching:
- 600kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HTSSOP
TPS61032PWP FAQ
1.How can I place an order for TPS61032PWP through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61032PWP 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 TPS61032PWP reliable?
The price and inventory of TPS61032PWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61032PWP is usually 5 days.
3.What payment methods are accepted for TPS61032PWP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61032PWP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61032PWP?
TPS61032PWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61032PWP 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 TPS61032PWP?
For technical support, including TPS61032PWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61032PWP requirements.
6.How does Aetrix verify that TPS61032PWP is sourced from the original manufacturer or authorized distributors?
All TPS61032PWP 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 TPS61032PWP meets industry standards.
7.What is the process for return or replacement of TPS61032PWP?
All TPS61032PWP units undergo pre-shipment inspection (PSI). If there is an issue with TPS61032PWP, 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 TPS61032PWP part is unused and in its original packaging.
Return procedure for TPS61032PWP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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