TPS66120YBGR - 22V USB-C Sink Power Switch | Texas Instruments
料号： TPS66120YBGR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.5811 | $0.58 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TPS66120YBGR 概述
A USB-C Power Delivery sink is the receiving side of a USB Type-C connection. The source supplies VBUS power, while the sink detects attachment, participates in power-role and power-contract negotiation, controls current flow, and protects its downstream system from unsafe voltage or current conditions. A sink power switch adds a controlled power path and protection functions; an LDO supplies a stable auxiliary rail. In the broader component hierarchy, the TPS66120 combines a USB-C interface, power switch, protection circuit, and low-dropout regulator within a single power-management device.
The supplied manufacturer information identifies the TPS66120 series as a single-channel special-purpose switch IC with a 4 V to 22 V integrated sink path. It also documents a high-voltage VBUS LDO that can supply the device and other system components during dead-battery conditions. A fault signal indicates overtemperature events, enabling the host controller to detect a thermal shutdown rather than continuing to request unavailable power. The operating-temperature range shown on the official ordering page is -10 °C to 85 °C.
The device is particularly relevant to compact USB-C power-acceptor designs where board area is constrained. Its 1.61 mm by 2.81 mm 28-ball DSBGA can reduce routing congestion around a USB-C connector and power-management circuitry, although fine-pitch assembly and inspection require capable PCB processes. The sink power path separates externally presented VBUS from downstream circuitry, while overtemperature and reverse-current protections address conditions that could otherwise stress system components.
Typical uses include USB-C-connected battery chargers, portable instruments, industrial data loggers, battery-powered test equipment, and embedded systems that receive power through a USB-C port. The 3.3 V auxiliary LDO is useful when the downstream controller or external components need a stable rail even before the system’s main battery chemistry becomes operational. For automotive, medical, or extended industrial products, verify the full electrical limits, qualification status, and production lifecycle independently rather than inferring suitability from the commercial temperature grade alone.
Designers should follow the manufacturer datasheet for VBUS capacitor selection, optional overvoltage-divider values, enable sequencing, fault handling, exposed-ball layout, and recommended PCB construction. In particular, preserve creepage and clearance around USB-C VBUS nodes and validate system behavior across source-capability advertisements, dead-battery startup, thermal stress, and unplug events. This page consolidates the verified ordering information, distributor observations, and cross-reference findings into an engineering-focused product record rather than adding unverified electrical or lifecycle claims.
直接替换替代料： TPS66120YBGR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TPS66120YBGR （相同外形与封装尺寸） ——差异在于 Operating Temperature, Product Type.
快速对比工具——选择替代料号进行并排对比：
该产品暂无直接替换替代料。
请求替代料TPS66120YBGR 最大额定值与电气特性
| Product Type | USB-C Power Delivery high-voltage sink power switch with 3.3 V dead-battery LDO |
| USB-C Input | USB Type-C Power Delivery sink |
| Integrated Sink Power-Path Voltage | 4 V to 22 V |
| High-Voltage VBUS LDO | 3.3 V dead-battery LDO |
| Overtemperature Protection | Supported by integrated sink power path |
| Reverse-Current Protection | Supported by integrated sink power path |
| VBUS Overvoltage Protection | Configurable through an optional external resistor divider |
| Fault Signal | Indicates overtemperature events |
| Channel Count | 1 channel |
| 工作温度 | -10 °C to 85 °C |
| Package Type | 28-pin DSBGA (YBG) |
| Package Dimensions | 1.61 mm x 2.81 mm |
| 安装类型 | Surface mount |
| Quiescent Current Feature 1 | 130 µA |
| Quiescent Current Feature 2 | 27 µA |
| LCSC Price | From $0.5811 as of 2026-10-22 |
| LCSC Listed Stock | 164 units as of 2026-10-22 |
TPS66120YBGR 1.61 mm x 2.81 mm 引脚配置指南
TPS66120YBGR（1.61 mm x 2.81 mm 封装）的引脚配置。 该功率器件具有栅极、漏极和源极端子。对于无极性封装，请参阅制造商数据手册以了解确切的引脚 1 方向和封装尺寸细节。常见应用包括电源设计、电机驱动和负载开关。
暂无详细引脚数据： TPS66120YBGR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TPS66120YBGR 适用于 6 应用s: USB-C Battery Charger, Dead-Battery Portable Instrument, Battery-Powered Data Logger, Industrial USB-C Controller, USB-C-Conditioned Test Equipment, Battery-Powered Sensor Node.
USB-C Battery Charger
The TPS66120YBGR fits a USB-C battery charger that must accept a negotiated source voltage while protecting its downstream circuitry. Its integrated 4 V to 22 V sink power path provides the controlled VBUS interface, while reverse-current and overtemperature protection address two important failure modes. The 3.3 V dead-battery LDO can keep controller and auxiliary circuitry supplied before the battery is operational. The compact 28-ball, 1.61 mm by 2.81 mm DSBGA helps reduce area beside a USB-C receptacle, but layout must follow the manufacturer’s ball map, capacitor guidance, and exposed-ball thermal construction. Designers should verify the external charger, protection devices, source-capability range, and startup sequence against the manufacturer datasheet before production.
推荐
Dead-Battery Portable Instrument
A portable measurement instrument can use the TPS66120YBGR when it must power a controller or interface immediately from a USB-C connection before its internal battery reaches its normal operating range. The verified 3.3 V dead-battery LDO is designed to supply the device and other system components under those conditions, while the 4 V to 22 V sink path manages the external source. This reduces reliance on a separate auxiliary regulator during attachment. The -10 °C to 85 °C specified range is relevant to indoor and protected industrial enclosures, but the designer must still validate enclosure temperature, startup current, and USB-C contract behavior. The small YBG package also requires assembly capability matched to its 28-ball layout.
推荐
Battery-Powered Data Logger
The TPS66120YBGR is suitable for a battery-powered field data logger that receives charging and operating power through USB Type-C. Its controlled 4 V to 22 V sink path reduces reliance on an uncontrolled direct VBUS connection, and reverse-current protection helps prevent backfeed when power sources or battery transitions occur. The integrated 3.3 V LDO supports controller logic during dead-battery operation, allowing USB attachment to initiate recovery without waiting for the cell voltage to stabilize. Designers should pair the device with the verified protection and capacitor recommendations, test repeated cable insertion, and assess the YBG package for reflow reliability. The published -10 °C to 85 °C range does not by itself qualify the complete logger for outdoor use.
推荐
Industrial USB-C Controller
A compact industrial controller can benefit from the TPS66120YBGR when USB-C is the primary service or power interface. The one-channel high-voltage switch integrates source-voltage isolation, reverse-current protection, and overtemperature reporting through a fault signal, giving a host controller a way to recognize thermal events. Its 3.3 V dead-battery LDO can support local logic during startup or recovery. The -10 °C to 85 °C specification may cover many indoor industrial environments, but enclosure temperature transients and system-level reliability must be checked independently. PCB assembly should account for the 1.61 mm by 2.81 mm 28-ball footprint, and engineers should follow manufacturer creepage, clearance, and decoupling guidance around VBUS.
推荐
USB-C-Conditioned Test Equipment
The TPS66120YBGR can serve as the input power-control element in portable test equipment that uses a USB-C port for power, charging, or firmware-recovery operations. The integrated 4 V to 22 V sink path provides a defined boundary for VBUS power, and the fault indication identifies overtemperature events that might otherwise be overlooked in unattended equipment. The 3.3 V LDO supports low-voltage control sections during dead-battery startup. Its surface-mount YBG package is attractive when instrument space is constrained, although test engineers must account for high-voltage spacing, connector stress, and assembly yield. Validate source negotiation behavior and external accessory loads before relying on the device as the sole system protection layer.
推荐
Battery-Powered Sensor Node
A USB-connected sensor node may use the TPS66120YBGR for controlled VBUS admission and startup support. When the node is connected to a charger, the sink power path helps isolate USB VBUS from the battery system, while reverse-current protection addresses energy-flow risks during transitions. The 3.3 V dead-battery LDO can power low-energy controller logic before the battery is sufficiently charged to operate normally. This supports configuration, firmware update, or recovery workflows. The compact package preserves board area for sensors and connectors, but its 28-ball construction and small dimensions demand suitable stencil, inspection, and rework processes. Confirm operating temperature, source capability, and protection thresholds against the actual enclosure and cable.
推荐
推荐产品汇总
工程参考数据： TPS66120YBGR ——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 |
|---|---|
| Package | 28-pin DSBGA (YBG), 1.61 mm x 2.81 mm |
| Brand | Texas Instruments |
| Product Function | USB-C Power Delivery sink power switch with dead-battery LDO |
| Integrated Sink Power Path | 4 V to 22 V |
| Dead-Battery LDO | 3.3 V |
| Reverse-Current Protection | Supported |
| Overtemperature Fault Indication | Supported |
| Operating Temperature | -10 °C to 85 °C |
| Channel Count | 1 channel |
关键差异点
- Combines a protected USB-C sink path with startup supply （对比 MIC2233)
- Adds explicit overtemperature fault reporting （对比 LTC3405)
- Provides configurable VBUS overvoltage protection （对比 LM27402)
设计说明
Treat the USB-C source, VBUS network, sink power path, battery charger, and dead-battery LDO as one coordinated power domain. Verify the 4 V to 22 V sink-path range against every advertised source voltage, charging state, and cable transient. Use the optional external resistor-divider arrangement specified by TI for VBUS overvoltage protection, and check its tolerance against the lowest and highest intended thresholds before schematic release.
The 1.61 mm by 2.81 mm 28-ball DSBGA requires a land pattern and assembly process qualified for fine-pitch BGAs. Preserve manufacturer-recommended copper, thermal-via, and solder-mask geometry, and inspect hidden joints using an appropriate process such as X-ray. Because the exact ball map was not present in the supplied results, do not derive a footprint or pin numbering from an unverified diagram.
Do not substitute MIC2233, LTC3405, or LM27402 solely because a marketplace describes them as similar power-management ICs. Those references were not verified as same-package or pin-compatible with the 28-ball YBG TPS66120. A true drop-in review requires identical ball functions, voltage thresholds, control timing, LDO behavior, exposed-ball construction, and absolute-maximum ratings; otherwise the substitution requires a redesign.
Route high-current VBUS and ground paths for low impedance, keep the protected and exposed interface nodes compact, and maintain the manufacturer’s creepage, clearance, capacitor placement, and thermal-via recommendations. Validate the design through source-advertisement sweeps, dead-battery startup, unplug events, overload behavior, and thermal fault injection. The published -10 °C to 85 °C operating range should be checked against worst-case internal and enclosure temperatures rather than assumed to eliminate thermal design.
合规信息
The verified web results do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. No compliance status was inferred from the distributor listings.
