TPS63000DRCR - 1.8A Buck-Boost Converter | Texas Instruments
N.º da peça: TPS63000DRCR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $2.79 | $2,79 |
| 10 | $2.51 | $25,10 |
| 100 | $2.23 | $223,00 |
| 500 | $1.99 | $995,00 |
| 1.000 | $1.78 | $1.780,00 |
TPS63000DRCR Visão geral
A buck-boost converter is a switched-mode DC-DC topology that seamlessly transitions between buck (step-down), boost (step-up), and buck-boost operation as the input voltage crosses the regulated output setpoint. Within the broader power management IC hierarchy, it sits above simple LDOs and single-mode buck converters, since it must maintain regulation when VIN is below, equal to, or above VOUT. This makes buck-boost ICs essential for battery-powered systems whose rail voltage crosses a fixed output during discharge, and it gives them a unique role above linear regulators in efficiency, and alongside but functionally distinct from standalone buck or boost converters.
Key features of the TPS63000 include a 1.5 MHz fixed switching frequency that permits the use of small inductors and ceramic capacitors, an adaptive hysteresis-based PWM/PFM control that maximizes efficiency across the full load range, and a power-save mode that drops quiescent current substantially at light loads. The device also offers a low-battery warning comparator, an enable input for power sequencing, and built-in thermal shutdown. The QFN-10 (3 mm x 3 mm) package with an exposed thermal pad delivers low parasitic inductance and adequate thermal performance for the converter's continuous 1.6A switch current.
The TPS63000 uses TI's proprietary control scheme, described in the manufacturer datasheet, that adjusts duty cycle and switching behavior automatically based on the input-to-output voltage ratio. At 3.3V VIN and 3.3V VOUT the device runs at approximately 95% efficiency at moderate loads, while at 2V VIN (near end-of-discharge of a Li-ion cell) the boost region still maintains roughly 90% efficiency. The exposed thermal pad enables direct PCB heat spreading, which keeps junction temperature rise manageable without an external heatsink.
Typical applications include portable media players, handhelds and portable terminals, industrial metering, single-cell Li-ion powered equipment, two-cell alkaline or NiMH powered systems, sensor modules and low-power wireless data acquisition, and any system whose battery voltage range straddles the regulated output voltage. The wide VIN window and adjustable VOUT also suit USB peripherals that must operate at 3.3V from a 4.5V to 5.5V rail.
When designing with this converter, pay close attention to inductor selection (a 1.5 uH to 2.2 uH shielded inductor is typically recommended) and ensure the input/output ceramic capacitors meet the minimum value and voltage derating requirements described in the manufacturer datasheet. Place both capacitors as close as possible to the IC pins and use a continuous ground plane under the exposed pad to minimize EMI and ensure proper thermal dissipation.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineering context for the TPS63000DRCR beyond the datasheet alone.
Alternativas drop-in para TPS63000DRCR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
TPS63002DRCR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS63000DRCT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS63000IDRCRQ1
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS63001DRCR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS63000DRCR Classificações máximas e características elétricas
| Topologia | Buck-Boost |
| Faixa de tensão de entrada | 1.8 V to 5.5 V |
| Faixa de tensão de saída | 1.2 V to 5.5 V (adjustable) |
| Switch Current | 1.8 A |
| Output Current | 1.6 A (switch rating) |
| Frequência de comutação | 1.5 MHz (typ) |
| Eficiência | Up to 96% |
| Temperatura de operação | -40 C to +125 C |
| Encapsulamento | 10-VSON (DRC) 3 mm x 3 mm |
| Tipo de montagem | Surface Mount |
| Número de saídas | 1 |
| Tipo de saída | Adjustable |
| Soft-start | Yes (internal) |
| Status RoHS | Compliant |
| Desligamento térmico | Yes |
| Pino de habilitação | Yes |
Configuração de pinos do TPS63000DRCR
| Pino 1 | FB — Feedback / VOUT sense (adjustable version) |
| Pino 2 | LBI — Low-battery indicator input |
| Pino 3 | LBO — Low-battery indicator output (open-drain) |
| Pino 4 | EN — Enable input (active high) |
| Pino 5 | GND — Ground |
| Pino 6 | PGND — Power ground |
| Pino 7 | VIN — Input supply voltage |
| Pino 8 | SW — Switch node (to external inductor) |
| Pino 9 | VOUT — Output voltage |
| Pino 10 | PGND — Power ground / exposed thermal pad |
Aplicações típicas
TPS63000DRCR é adequado para 6 aplicaçãos: Single-Cell Li-ion Powered Portable Devices, Industrial Metering and Data Acquisition, Two-Cell Alkaline or NiMH Powered Systems, USB-Powered Peripherals and Dongles, Sensor Modules and Low-Power Wireless Nodes, Handheld Consumer Electronics.
Single-Cell Li-ion Powered Portable Devices
The TPS63000DRCR is ideal for single-cell Li-ion powered portable media players and handheld terminals. Its 1.8V to 5.5V input range covers the entire Li-ion discharge curve from 4.2V fully charged down to 3.0V end-of-discharge, while the adjustable 1.2V to 5.5V output sustains a stable 3.3V or 1.8V system rail even as battery voltage crosses the regulated output. Up to 96% efficiency minimizes wasted energy, extending runtime by 15-25% compared to a pure boost or pure buck solution at the same load. Placed between the battery pack and the main system rail with 1.5 uH shielded inductor and 10 uF ceramic input/output capacitors; the buck-boost topology delivers seamless transitions during audio peaks or sudden load steps without output voltage droop.
Recomendado
Industrial Metering and Data Acquisition
The TPS63000DRCR suits battery-powered industrial metering and wireless sensor nodes where battery life and reliability matter most. Its adaptive PWM/PFM control with power-save mode reduces quiescent current drain at light loads, allowing the metering node to stay in sleep mode for months on a single AA cell. The 1.5 MHz switching frequency keeps the switching noise above the AM radio band, avoiding interference with any RF link the meter may use. The device delivers regulated 3.3V or 5V from a 1.8V to 5.5V battery stack. Used as the primary rail regulator with a 1 uH inductor and 22 uF ceramic capacitor; the exposed thermal pad spreads heat across a copper pour, eliminating the need for a heatsink at continuous 1A loads.
Recomendado
Two-Cell Alkaline or NiMH Powered Systems
The TPS63000DRCR is engineered for two-cell alkaline or NiMH battery packs whose voltage starts at 3.2V fully charged and falls to 1.8V at end-of-discharge. With adjustable output down to 1.2V, the device can regulate a 1.8V or 3.3V system rail across the entire discharge curve. Efficiency remains above 90% even in the boost region (VIN less than VOUT), preserving usable runtime. Combined with low-battery warning comparator support, the design enables accurate end-of-life signaling. Placed near the battery terminals with input TVS protection and a low-ESR ceramic capacitor; the device's buck-boost operation eliminates the need for a separate boost IC, reducing BOM cost and PCB area.
Recomendado
USB-Powered Peripherals and Dongles
The TPS63000DRCR works well in USB peripherals requiring a regulated 3.3V or 5V rail from a 4.5V to 5.5V USB bus input. Its buck mode delivers high efficiency at the typical USB 5V input, minimizing heat in compact dongle enclosures. The wide output voltage range supports designs that must also interface with 1.8V legacy or low-voltage components. The power-save mode ensures low standby current when the host PC enters sleep states. Deployed between the USB VBUS pin and downstream circuitry; a 4.7 uH inductor and 22 uF capacitors deliver excellent transient response for hot-plug events, with the exposed thermal pad tied to the PCB ground pour.
Recomendado
Sensor Modules and Low-Power Wireless Nodes
The TPS63000DRCR is widely deployed in low-power IoT sensor modules and wireless data acquisition nodes. Its low quiescent current in power-save mode extends battery life across months of sleep periods, while its 1.6A switch capacity supports burst transmissions from sub-GHz radios like CC1101 or Bluetooth Low Energy modules. The 1.5 MHz fixed switching frequency permits small 0805 ceramic capacitors and a 1.5 uH chip inductor, ideal for compact sensor packages. Operates as the main rail from a CR2032 or two-AAA pack; the buck-boost topology seamlessly supports voltage fall during transmission, keeping the radio on the regulated rail throughout the packet.
Recomendado
Handheld Consumer Electronics
The TPS63000DRCR powers handheld consumer products such as remote controls, e-readers, and personal health devices. Its compact 3 mm x 3 mm VSON package fits inside thin enclosures, while the 96% peak efficiency keeps the device cool during continuous use. The adjustable VOUT supports any combination of 1.8V, 2.5V, 3.3V or 5V rails from the same battery, simplifying SKU management across product variants. Placed adjacent to the battery terminals with a 1.5 uH shielded inductor; the device's seamless mode transitions prevent audible noise or motor glitches when the battery voltage dips below the regulated output during heavy load steps.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TPS63000DRCR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TPS63002DRCR | TPS63000DRCT | TPS63000IDRCRQ1 | TPS63001DRCR |
|---|---|---|---|---|---|
| Package | 10-VSON (DRC) 3x3 mm | 10-VSON (DRC) 3x3 mm - same | 10-VSON (DRC) 3x3 mm - same | 10-VSON (DRC) 3x3 mm - same | 10-VSON (DRC) 3x3 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Topology | Buck-Boost (seamless) | Buck-Boost (seamless) | Buck-Boost (seamless) | Buck-Boost (seamless) | Buck-Boost (seamless) |
| Output Voltage | 1.2V to 5.5V adjustable | Fixed 3.3V | 1.2V to 5.5V adjustable | 1.2V to 5.5V adjustable | Fixed 3.0V/3.3V |
| Switch Current | 1.8 A | 1.8 A | 1.8 A | 1.8 A | 1.8 A |
| Input Voltage | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V |
| Switching Frequency | 1.5 MHz | 1.5 MHz | 1.5 MHz | 1.5 MHz | 1.5 MHz |
| Automotive Grade | No | No | No | Yes (AEC-Q100) | No |
| Reel Size | 3000 pieces (DRCR) | 3000 pieces | 250 pieces (DRCT) | 3000 pieces | 3000 pieces |
| Efficiency (typ) | Up to 96% | Up to 96% | Up to 96% | Up to 96% | Up to 96% |
Principais diferenciais
- True seamless buck-boost topology - regulates across VIN below, equal to, or above VOUT (vs TPS61220 (boost-only))
- 1.5 MHz switching frequency permits smallest inductor and capacitors (vs TPS61240 (2 MHz typical competitors))
- Same-package automotive grade option (TPS63000IDRCRQ1) (vs Standard TPS63000DRCR)
- Up to 96% peak efficiency (vs LDO regulators in same current range)
Notas de projeto
Estimated: at VIN=3.6V, VOUT=3.3V, IOUT=1A the TPS63000DRCR dissipates approximately 0.3W. The 10-VSON (DRC) 3x3 mm package with exposed thermal pad has theta_JA around 50 C/W on a standard 2-layer 1-oz PCB, giving about 15 C temperature rise. For continuous 1.5A+ loads, use a 4-layer PCB or expand the copper pour under the exposed pad to keep junction temperature below 110 C. The thermal pad MUST be soldered to the PCB ground plane and connected to PGND with multiple vias.
Place the input capacitor, output capacitor, and inductor as close as possible to the IC pins to minimize parasitic inductance. Use X7R or X5R ceramic capacitors rated at least 6.3V. The feedback resistor divider (if adjustable) should be placed near the FB pin with traces routed away from the SW node. Use a continuous top/bottom ground plane under the device; never route signal traces across the SW node or the inductor pad.
Critical layout rules from the TI datasheet: keep the SW trace as short as possible to reduce EMI. Use wide copper pours for VIN and VOUT paths to minimize DC losses. Place the input capacitor directly between VIN and PGND pins, and the output capacitor directly between VOUT and PGND. The exposed thermal pad MUST be connected to PGND with at least 5 thermal vias for adequate heat dissipation.
Do not exceed the absolute maximum VIN of 6V (5.5V operating with 0.5V transient tolerance) - the device has no internal over-voltage clamping on VIN. Avoid operating below 1.8V VIN as the internal UVLO will reset the device. When using the enable pin, ensure the input voltage is stable before pulling EN high to avoid startup glitches. For noise-sensitive analog loads, add a small LC filter on VOUT to clean up switching ripple.
Estimated: worst-case power dissipation at VIN=1.8V (boost to 3.3V) at 600 mA load is approximately 1.4W, exceeding safe operating limits. At lower loads (under 300 mA in boost region) the TPS63000 operates comfortably without thermal concerns. Use the TI WEBENCH Power Designer tool for accurate loss modeling across your specific VIN/VOUT/IOUT operating points before finalizing BOM.
Informações de conformidade
RoHS and REACH compliant per Texas Instruments product page. Standard TPS63000DRCR is not AEC-Q100 qualified - choose TPS63000IDRCRQ1 for automotive applications.
