TPS62290TDRVRQ1 - 1A 2.25MHz Automotive Buck Converter | TI
料号： TPS62290TDRVRQ1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.95 | $1.95 |
| 10 | $1.74 | $17.40 |
| 100 | $1.42 | $142.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.05 | $1,050.00 |
TPS62290TDRVRQ1 概述
A buck converter (step-down switching regulator) is a type of switched-mode power supply that uses an inductor, capacitor, and two switches (typically a high-side MOSFET and a synchronous rectifier) to efficiently convert a higher DC voltage to a lower DC voltage. By storing and releasing energy in the inductor during the switching cycle, buck converters achieve efficiency levels of 90-95%, far exceeding linear regulators that dissipate the difference as heat. The TPS62290-Q1 family belongs to TI's broader portfolio of small-package low-power PMICs that power microcontrollers, sensors, and processors in space-constrained automotive designs.
Key features of the TPS62290TDRVRQ1 include up to 1A continuous output current, 2.25 MHz fixed switching frequency enabling low-noise operation and small external LC components, internal power MOSFETs, and an output voltage accuracy of 1.5%. The 2.25 MHz frequency is intentionally placed above the AM radio band to avoid EMI interference with automotive infotainment receivers. The device also supports power-save mode at light loads to extend battery life, plus internal soft-start, thermal shutdown, and over-current protection.
The TPS62290TDRVRQ1 uses a voltage-mode PWM control architecture with synchronous rectification to maximize efficiency across the load range. Its internal MOSFETs and small WDFN package minimize the total solution footprint to roughly 12 mm², making it ideal for compact modules. The 2x2 mm footprint is among the smallest 1A-capable automotive regulators on the market, allowing engineers to place the converter directly adjacent to the load.
Typical applications include automotive infotainment systems, Advanced Driver Assistance Systems (ADAS) sensor power, instrument clusters, body control modules, and ADAS camera/radar power rails. The wide 2.3V to 6V input supports both 3.3V and 5V automotive rails, making it drop-in compatible with most low-voltage automotive power trees.
When designing with this part, keep the input capacitor within 2 mm of the PVIN pin and use a 1uH to 2.2uH inductor with low DCR. Output voltage is set by an external resistor divider on the feedback pin. Derate maximum output current at high ambient temperatures per the AEC-Q100 thermal envelope.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： TPS62290TDRVRQ1 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
TPS62290DRVR
✅ 直接替换📋 参考替代料（不在目录中）
TPS62291DRVR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPS62293DRVR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPS62290TDRVRQ1 最大额定值与电气特性
| 拓扑 | Synchronous Step-Down (Buck) |
| 输入电压范围 | 2.3 V to 6 V |
| 输出电压范围 | 0.6 V to 6 V (Adjustable) |
| 输出电流（最大） | 1 A |
| 开关频率 | 2.25 MHz (Fixed) |
| Output Voltage Accuracy | 1.5% |
| Efficiency (Typ) | Up to 95% |
| 工作温度范围 | -40 C to +125 C |
| Package Type | 6-WDFN Exposed Pad (DRV, 2x2 mm) |
| AEC-Q100 Qualified | Yes (Automotive Grade) |
| Control Mode | Voltage Mode PWM with Power Save Mode |
| 同步整流器 | Yes (Internal MOSFETs) |
| 输出数量 | 1 |
| 输出类型 | Adjustable |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| MSL 等级 | Level 1 (per TI datasheet) |
TPS62290TDRVRQ1 引脚配置
| 引脚 1 | PGND — Power Ground (exposed thermal pad also tied to GND) |
| 引脚 2 | VIN — Input supply voltage |
| 引脚 3 | EN — Enable (active high) |
| 引脚 4 | FB — Feedback (connect to resistor divider for Vout) |
| 引脚 5 | SW — Switch node (connect to external inductor) |
| 引脚 6 | VOUT — Output voltage rail (sense) |
典型应用
TPS62290TDRVRQ1 适用于 6 应用s: Automotive Infotainment Power Supply, ADAS Camera and Radar Sensor Power, Body Control Module (BCM) Auxiliary Rails, Industrial IoT Sensor Hubs, Portable Handheld Instruments, Automotive Camera Module PMIC.
Automotive Infotainment Power Supply
The TPS62290TDRVRQ1's fixed 2.25 MHz switching frequency (above the AM broadcast band) and 1A output make it ideal for powering audio processors, infotainment controllers, and tuner stages where EMI must not contaminate the RF signal path. Placed between the 5V automotive rail and the AVDD pins of an audio DAC or tuner IC with a 1uH inductor and 4.7uF ceramic capacitor on each rail, the device delivers up to 1A at 1.5% output accuracy while consuming minimal PCB area. AEC-Q100 qualification supports under-the-hood or cabin-mounted designs.
推荐
ADAS Camera and Radar Sensor Power
Advanced Driver Assistance Systems require low-noise point-of-load power for image sensors and millimeter-wave radar transceivers. The TPS62290TDRVRQ1's 2.25 MHz switching frequency avoids interfering with radar IF frequencies (typically 76-81 GHz IF bands at sub-GHz baseband), while the 1A output easily supports multiple sensor rails. The 6-WDFN 2x2 mm footprint allows placement adjacent to the sensor module in tight ADAS camera assemblies, and AEC-Q100 qualification supports safety-critical applications.
推荐
Body Control Module (BCM) Auxiliary Rails
Body control modules aggregate functions like lighting, door locks, and mirror control, each requiring a clean 3.3V or 5V rail derived from the battery bus. The TPS62290TDRVRQ1 operates from 2.3V to 6V input, tolerating cold-crank and load-dump transients on automotive 12V battery rails when placed after a pre-regulator. Efficiency up to 95% reduces thermal stress in sealed BCM enclosures. Power-save mode at light load extends battery life in always-on standby applications.
推荐
Industrial IoT Sensor Hubs
Although qualified for automotive applications, the TPS62290TDRVRQ1 is also suitable for industrial sensor hubs, factory automation controllers, and portable measurement devices that require a 1A point-of-load converter with low EMI. The wide 0.6V to 6V adjustable output supports microcontrollers, sensors, and wireless modules, while the small 12 mm² solution footprint enables miniaturized designs. The fixed 2.25 MHz switching frequency simplifies filter design for noise-sensitive sensor signal chains.
推荐
Portable Handheld Instruments
Portable handheld instruments (multimeters, oscilloscopes, dataloggers) benefit from the TPS62290TDRVRQ1's high efficiency (>90% at 0.5A) and tiny 2x2 mm package when powered by 3.7V lithium cells or 5V USB inputs. Its low quiescent current extends runtime in battery-powered measurement tools, while AEC-Q100 qualifications guarantee wider operating temperature tolerance for outdoor and industrial use cases. The adjustable 0.6V to 6V output supports diverse sensor rails in handheld instruments.
推荐
Automotive Camera Module PMIC
Compact automotive surround-view and rear-view camera modules require point-of-load power adjacent to the image sensor. The TPS62290TDRVRQ1's 2x2 mm 6-WDFN footprint fits directly next to a small image sensor on flex or rigid PCB, with up to 1A shared across analog and digital rails. AEC-Q100 grade 1 supports under-hood operating temperatures (-40C to +125C), and 2.25 MHz switching avoids interference with the camera serializer's high-speed video link.
推荐
推荐产品汇总
工程参考数据： TPS62290TDRVRQ1 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TPS62290DRVR | TPS62291DRVR | TPS62293DRVR |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 6-WDFN (DRV, 2x2 mm) | 6-WDFN (DRV, 2x2 mm) - same | 6-WDFN (DRV, 2x2 mm) - same | 6-WDFN (DRV, 2x2 mm) - same |
| Input Voltage Range | 2.3 V to 6 V | 2.3 V to 6 V | 2.3 V to 6 V | 2.3 V to 6 V |
| Output Voltage Range | 0.6 V to 6 V (Adj) | 0.6 V to 6 V (Adj) | 0.6 V to 6 V (Adj) | 0.6 V to 6 V (Adj) |
| Output Current | 1 A | 1 A | 1 A | 1 A |
| Switching Frequency | 2.25 MHz | 2.25 MHz | 2.25 MHz | 2.25 MHz |
| AEC-Q100 Qualified | Yes | No | No | No |
| Unit Price (qty 1, USD) | 1.95 | 1.50 (lower, non-automotive) | 1.60 | 1.60 |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C |
关键差异点
- Automotive AEC-Q100 grade 1 qualification （对比 TPS62290DRVR)
- Fixed 2.25 MHz switching frequency above AM band （对比 TPS61240DRVT)
- Wide-output adjustable version in 6-WDFN （对比 TPS62293DRVR)
设计说明
Place the input ceramic capacitor (typical 4.7uF X5R) within 2 mm of the VIN pin and use wide traces to minimize parasitic inductance. The exposed thermal pad must be soldered to a PCB land pattern at least 1 mm² for proper thermal relief at 1A. Keep the SW node traces short and away from sensitive analog signals, since 2.25 MHz edges have high dV/dt. Use a 4-layer PCB with a continuous GND pour to reduce EMI.
At VIN=5V, VOUT=3.3V, IOUT=0.8A, the TPS62290TDRVRQ1 dissipates approximately 1.4 W inside the 6-WDFN package. With the 2x2 mm footprint, the thermal resistance to ambient is high (~80 C/W on a standard 2-layer board). For continuous full-1A operation in sealed enclosures (BCM, sensor housings), consider using a 4-layer board or down-rating to 0.7 A. Junction-to-ambient thermal shutdown activates near 150 C per TI datasheet.
Do not exceed the absolute maximum VIN of 7V - automotive load-dump transients must be clamped externally before the TPS62290TDRVRQ1. Select inductors with at least 1.5 A saturation current rating to handle peak current. Output capacitor ESR stability requires a minimum of 4.7uF ceramic; insufficient capacitance causes output ripple. The EN pin must be driven logic-low before VIN exceeds 7V during pre-biased start-up to prevent inductor saturation.
合规信息
AEC-Q100 qualified per TI product page; RoHS and REACH compliant; lead-free finish; halogen-free per TI's standard automotive product declaration
