My Inquiry
My Account
Texas Instruments TPS650245RHBR
- Part No.:
- TPS650245RHBR
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
TPS650245RHBR.pdf
- Description:
- IC BAT PWR MGMT LI-ION 1C 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,338
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS650245RHBR from Texas Instruments is a highly integrated power management IC (PMIC) for single-cell Li-ion/Li-polymer systems, featuring three synchronous step-down converters (1.0 A / 0.8 A / 0.8 A), two 200 mA general-purpose LDOs, and one 30 mA always-on Vdd_alive LDO. It delivers 0.9 V / 1.1 V core voltage (DCDC3), 3.3 V or 2.8 V I/O voltage (DCDC1), and 1.8 V or 2.5 V memory voltage (DCDC2), supporting ARM-based processors in portable electronics.
For engineers reviewing the TPS650245RHBR datasheet, TPS650245RHBR pinout, TPS650245RHBR application, or TPS650245RHBR equivalent, key selection criteria include DCDC3 dual-voltage configuration (0.9 V / 1.1 V), 2.25 MHz switching frequency, 85 µA quiescent current in PFM mode, thermal shutdown at 160 °C, and VQFN-32 package compatibility with space-constrained handheld designs.
Technical Context
The TPS650245RHBR integrates three independent buck regulators with external inductor control (L1–L3), each supporting PWM/PFM auto-mode switching via the MODE pin and fixed-output or resistor-divider-adjustable voltages via DEFDCDC1–DEFDCDC3 pins. DCDC3 uses a dedicated logic-selectable output (0.9 V or 1.1 V) for dynamic processor core voltage scaling.
All three DC-DC converters share a common 2.25 MHz oscillator with ±15% tolerance, operate from 2.5 V to 6 V input, and feature soft-start (750 µs ramp time), overcurrent protection (1.0–1.4 A ILIMF range), and thermal shutdown. The LDO section includes externally adjustable VLDO1/VLDO2 (1–3.3 V) and fixed Vdd_alive (1.1 V), all with separate enable inputs (EN_LDO, EN_Vdd_alive).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DCDC1 Output Current | 1000 mA max - supports system I/O rail (3.3 V or 2.8 V) for ARM peripherals |
| DCDC2 Output Current | 800 mA max - powers memory subsystem (1.8 V or 2.5 V) with tight load regulation (±0.25%) |
| DCDC3 Output Voltage | 0.9 V / 1.1 V selectable - enables low-power core operation in battery-sensitive applications |
| Switching Frequency | 2.25 MHz ±15% - allows use of compact 2.2 µH inductors and reduces EMI filtering burden |
| Quiescent Current | 85 µA typical in PFM mode - extends battery life during light-load standby states |
| Vdd_alive Output | 1.1 V fixed, 30 mA - maintains real-time clock or wake-up circuitry during deep sleep |
| LDO1/LDO2 Current | 200 mA each - supplies auxiliary rails with external resistor feedback for flexible voltage setting |
Pinout & Package
TPS650245RHBR is housed in a 5.0 mm × 5.0 mm, 32-pin VQFN (RHB) package with exposed thermal pad. Pin numbering follows top-view layout; AGND1/AGND2 and PGND1/PGND2/PGND3 are internally connected but require separate PCB ground planes for noise isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDCDC3 | Feedback input | Connects directly to DCDC3 output for closed-loop regulation of 0.9 V / 1.1 V core rail |
| DEFDCDC3 | Configuration input | Logic-level select: LOW = 0.9 V, HIGH = 1.1 V - enables dynamic voltage scaling without firmware change |
| EN_DCDC3 | Enable control | Active-high signal to power-gate core supply; critical for sequencing during boot and sleep transitions |
| L3 | Power switch node | Connects to 2.2 µH inductor; high dv/dt node requiring tight layout and local ceramic decoupling |
| PGND3 | Power ground return | Dedicated ground path for DCDC3 high-current loop - must be routed separately from analog grounds |
| VINLDO | LDO input supply | Accepts 1.5–6.5 V input; can be fed from battery or DCDC outputs for cascaded regulation |
| FB_LDO1 | LDO1 feedback | Resistor divider sets VLDO1 output between 1 V and 3.3 V; internal 1 V reference enables precision setting |
Key Features
| Feature | Design Value |
|---|---|
| Three independent buck converters | Enables simultaneous, sequenced power delivery to core, memory, and I/O domains with no cross-regulation |
| Programmable DCDC3 output | 0.9 V / 1.1 V selection via single logic pin eliminates need for external voltage-setting resistors or DAC |
| PFM/PWM auto-mode switching | Maintains >90% efficiency from 100 µA to full load - critical for battery runtime across usage modes |
| Separate enable pins per regulator | Allows precise power sequencing (e.g., enable Vdd_alive before DCDC3) without external timing circuitry |
| Thermal shutdown with hysteresis | Shuts down at 160 °C and re-enables at 140 °C - prevents thermal runaway in sealed enclosures |
Applications
| Smartphone Baseband Power | ARM Cortex-A8/A9 System-on-Chip |
|---|---|
Use Scenario: Powers application processor, DDR memory, and peripheral interfaces in single-cell Li-ion smartphones. IC Role / Device Role / Timing Role: PMIC provides three regulated rails: 0.9 V/1.1 V core (DCDC3), 1.8 V memory (DCDC2), and 3.3 V I/O (DCDC1), with dynamic voltage scaling support. Use Value: Enables adaptive core voltage based on workload, reducing active power by up to 30% compared to fixed 1.2 V operation. | Use Scenario: Supplies TI OMAP3/4 or similar ARM-based SoCs in portable industrial HMIs and medical handhelds. IC Role / Device Role / Timing Role: Delivers tightly regulated, sequenced power to CPU core, DDR2/3, and USB/SDIO interfaces using integrated enable controls. Use Value: Eliminates six discrete regulators and associated passives, saving >40 mm² PCB area and simplifying BOM management. |
| GPS Navigation Device | Digital Camera Image Processor |
Use Scenario: Powers GPS baseband IC and RF front-end in battery-operated automotive navigation units. IC Role / Device Role / Timing Role: Provides 0.9 V core (DCDC3), 2.5 V RF bias (DCDC2), and 3.3 V digital interface (DCDC1), with ultra-low quiescent current during satellite acquisition. Use Value: 85 µA PFM quiescent current extends cold-start satellite lock time by >15% versus competing PMICs. | Use Scenario: Supplies image signal processor (ISP), CMOS sensor, and LCD controller in compact digital cameras. IC Role / Device Role / Timing Role: Generates 1.1 V ISP core (DCDC3), 1.8 V sensor interface (DCDC2), and 3.3 V display driver (DCDC1), with fast transient response for burst capture. Use Value: 750 µs soft-start and <10 µs LDO regulation time prevent brownouts during rapid flash-triggered exposure sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power management IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS650244RHBR | DCDC3 outputs 1.55 V / 1.6 V; higher core voltage targets legacy ARM9/11 CPUs | Suitable for older SoCs requiring >1.2 V core; not compatible with 0.9 V/1.1 V TPS650245RHBR designs | Select when migrating from TPS650245RHBR to higher-voltage core architectures without changing PCB layout |
| TPS650243RHBR | DCDC3 outputs 1.0 V / 1.2 V; DCDC1 rated for 1.6 A (vs. 1.0 A) | Better suited for systems needing higher I/O rail current or 1.2 V core; requires updated DEFDCDC3 logic mapping | Choose for enhanced I/O drive capability while retaining similar footprint and sequencing behavior |
Compared with TPS650244RHBR and TPS650243RHBR, the TPS650245RHBR offers the lowest core voltage option (0.9 V) for maximum energy efficiency in modern low-power ARM cores, with identical 32-pin VQFN packaging and shared enable/control architecture.
Availability
TPS650245RHBR is available at Aetrix Electronics and suitable for smartphone baseband power, ARM SoC platforms, GPS navigation devices, and digital camera image processors requiring stable component supply and long-term production continuity.
Supply support for TPS650245RHBR 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, embedded processing, and power management technologies, with decades of expertise in battery-powered system solutions.
The TPS65024x product line was designed specifically for Li-ion/Li-polymer powered portable electronics, integrating multiple DC-DC and LDO regulators into a single compact package to reduce size, cost, and design complexity.
FAQ
What is the recommended input voltage range for TPS650245RHBR?
The TPS650245RHBR supports an input voltage range of 2.5 V to 6 V on all DC-DC converter inputs (VINDCDC1–VINDCDC3), VCC, and VINLDO. This accommodates single-cell Li-ion (3.0–4.2 V nominal) and Li-polymer batteries, including full charge and discharge profiles, while maintaining regulation across all three buck stages and both LDO sections.
How does the DEFDCDC3 pin configure the TPS650245RHBR core voltage?
The DEFDCDC3 pin on the TPS650245RHBR selects between two factory-trimmed core output voltages: logic LOW sets VDCDC3 to 0.9 V, and logic HIGH sets it to 1.1 V. This binary configuration is implemented via internal resistor networks and requires no external components - enabling simple hardware-based voltage scaling without firmware intervention.
Can TPS650245RHBR operate in forced PWM mode, and how is it enabled?
Yes, the TPS650245RHBR can be forced into fixed-frequency PWM mode by driving the MODE pin HIGH. In this mode, all three DC-DC converters bypass PFM operation and maintain constant 2.25 MHz switching regardless of load, improving EMI predictability and reducing output voltage ripple at light loads - useful for noise-sensitive analog circuits.
What is the thermal shutdown behavior of TPS650245RHBR?
The TPS650245RHBR activates thermal shutdown at 160 °C junction temperature and remains latched off until junction temperature falls to approximately 140 °C due to 20 °C hysteresis. This protects the device during sustained overload or poor PCB thermal design, and automatic recovery avoids manual reset requirements in field-deployed equipment.
Does TPS650245RHBR support external feedback for its LDO outputs?
Yes, the TPS650245RHBR supports external feedback for VLDO1 and VLDO2 via FB_LDO1 and FB_LDO2 pins. Each LDO uses an internal 1.0 V reference; connecting a resistor divider between the LDO output and ground sets the output voltage from 1.0 V to 3.3 V with ±1% accuracy, enabling custom rail generation without additional regulators.
TPS650245RHBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Power Management
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1
- Fault Protection:
- Over Temperature, Under Voltage
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VQFN (5x5)
TPS650245RHBR FAQ
1.How can I place an order for TPS650245RHBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS650245RHBR 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 TPS650245RHBR reliable?
The price and inventory of TPS650245RHBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS650245RHBR is usually 5 days.
3.What payment methods are accepted for TPS650245RHBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS650245RHBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS650245RHBR?
TPS650245RHBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS650245RHBR 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 TPS650245RHBR?
For technical support, including TPS650245RHBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS650245RHBR requirements.
6.How does Aetrix verify that TPS650245RHBR is sourced from the original manufacturer or authorized distributors?
All TPS650245RHBR 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 TPS650245RHBR meets industry standards.
7.What is the process for return or replacement of TPS650245RHBR?
All TPS650245RHBR units undergo pre-shipment inspection (PSI). If there is an issue with TPS650245RHBR, 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 TPS650245RHBR part is unused and in its original packaging.
Return procedure for TPS650245RHBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS650245RHBR Tags
-
BQ29700DSER
Texas Instruments
-
S-8241ABKMC-GBKT2G
ABLIC Inc.
-
S-8241ABPMC-GBPT2G
ABLIC Inc.
-
BQ27427YZFR
Texas Instruments
-
BQ27426YZFR
Texas Instruments
-
STC3117IJT
STMicroelectronics
-
STC3115IJT
STMicroelectronics
-
BQ76925RGER
Texas Instruments
-
NPM1100-QDAA-R
Nordic Semiconductor ASA
-
BQ27441DRZR-G1A
Texas Instruments
-
STC3115AIQT
STMicroelectronics
-
S-8252AAL-M6T1U
ABLIC Inc.
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…
