TPS22992 - 5.5V 6A 8.7mΩ Load Switch | Texas Instruments
부품 번호: TPS22992 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.55 | $0.55 |
| 10 | $0.46 | $4.60 |
| 100 | $0.38 | $38.00 |
| 500 | $0.32 | $160.00 |
| 1,000 | $0.26 | $260.00 |
TPS22992 개요
A load switch is a power management IC that sits between a power rail and its load, using an internal MOSFET pass element and control logic to connect or disconnect the load on demand. Load switches occupy the middle of the power management IC hierarchy, below full DC-DC converters and above discrete MOSFET solutions, providing controlled power-up, inrush limiting, rail sequencing, and fault isolation that a bare MOSFET cannot deliver without significant external circuitry.
Key features of the TPS22992 include the ultra-low 8.7 mΩ on-resistance, which limits conduction losses to roughly 78 mW at a full 6 A load, an input voltage range up to 5.5 V, and a configurable rise time that gives designers flexibility for power sequencing. The adjustable rise time also minimizes inrush current when switching high-capacitance loads such as large ceramic capacitor banks or downstream SoC core rails.
Technically, the TPS22992 uses an N-channel high-side power MOSFET driven by an internal charge-pump gate driver, which allows the switch to achieve extremely low Ron without the voltage-drop penalty of a P-channel device. The TPS22992x family consists of two members: the TPS22992 and the TPS22992S, which differ in their output discharge behavior, letting designers choose whether the output rail floats or is actively pulled low when the switch is disabled.
Typical applications include powering processor cores and I/O rails in servers and SSDs, peripheral port power control in industrial systems, and general 5V-rail power distribution where a compact 6 A switch replaces discrete MOSFET-plus-driver solutions.
When designing with the TPS22992, account for thermal rise at sustained high load: at 6 A, I2R losses through the 8.7 mΩ switch demand a solid ground-plane copper pour under the WQFN-HR thermal pad to keep junction temperature within limits.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
드롭인 대체품: TPS22992 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: TPS22992 (동일 폼 팩터 및 풋프린트) — 차이점: Package.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
TPS22992S
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TPS22997RYZR
✅ 드롭인✓ 재고 있음
$1.1 / 개
데이터시트 보기 →TPS22992 최대 정격 & 전기적 특성
| Product Type | Single-channel load switch |
| On-Resistance (Ron) | 8.7 mΩ |
| 최대 출력 전류 | 6 A |
| 입력 전압 범위 | Up to 5.5 V |
| Number of Channels | 1 |
| Switch Type | N-channel high-side power MOSFET |
| 상승 시간 | Adjustable (configurable) |
| 패키지 | 8-WQFN-HR (1.5 mm x 1.25 mm) |
| 실장 유형 | Surface Mount |
| Output Discharge | TPS22992 variant; TPS22992S variant available in family |
| Inrush Current Control | Minimized via adjustable rise time |
TPS22992 8-wqfn-hr (1.5 mm x 1.25 mm) 핀 구성 가이드
TPS22992(8-wqfn-hr (1.5 mm x 1.25 mm) 패키지)의 핀 구성입니다. 이 전력 소자는 게이트, 드레인, 소스 단자를 갖추고 있습니다. 비편향 패키지의 경우 정확한 핀 1 방향과 풋프린트 세부 정보는 제조사 데이터시트를 참조하십시오. 일반적인 응용 분야로는 전원 공급 장치 설계, 모터 구동, 부하 스위칭이 있습니다.
다음에 대한 상세 핀아웃 데이터 없음: TPS22992.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
TPS22992 적합 용도: 6 애플리케이션s: Server and Data Center Power Distribution, SSD and Storage Controller Power Switching, Industrial Peripheral Port Power Control, Processor Core Rail Sequencing, Battery-Powered and Portable High-Current Loads, Hot-Plug Style Capacitive Load Insertion.
Server and Data Center Power Distribution
The TPS22992 fits server and data center power trees where multiple 5 V rails must be switched independently under GPIO control. Its 8.7 mΩ on-resistance keeps conduction loss to roughly 0.31 W at a full 6 A load, limiting thermal burden in dense rack hardware, while the adjustable rise time tames inrush current when energizing large decoupling networks on SoC core rails. Implemented as a high-side N-channel switch with internal charge-pump drive, it drops directly between the 5 V supply rail and downstream point-of-load converters, enabling fault isolation and sequenced power-up of blades, NICs, and storage trays without discrete driver circuitry.
추천
SSD and Storage Controller Power Switching
Storage devices switch multiple rails to meet power-state transition requirements, and the TPS22992 is well matched to this role. The 5.5 V input rating covers standard 5 V system rails, the 6 A capability supports peak SSD controller currents, and the configurable rise time limits inrush into the large bulk capacitance demanded by storage controllers during hot-plug-style power events. Placed between the SATA/M.2 5 V feed and the onboard buck converters, the switch provides a defined power-on ramp and clean disconnect during shutdown; choosing the TPS22992S variant actively discharges the output at turn-off, preventing residual rail float that could latch the controller in an undefined state.
추천
Industrial Peripheral Port Power Control
Industrial I/O modules, sensor hubs, and fieldbus nodes frequently need to power-cycle individual peripherals under firmware control for fault recovery or power budgeting. The TPS22992 provides a compact 6 A switch for these ports: the 8.7 mΩ MOSFET minimizes voltage drop so the peripheral sees nearly the full 5 V rail, and the adjustable rise time prevents inrush trips of upstream current-limit circuits when reconnecting capacitive loads. Integrated into the port power path, it enables remote reset of a stuck sensor or actuator without a full system reboot, and its tiny WQFN-HR footprint fits the dense I/O daughter-card layouts typical of factory automation hardware.
추천
Processor Core Rail Sequencing
Multi-rail processors require controlled power-up order between core, I/O, and memory supplies. The TPS22992 supports this by acting as an adjustable-rise-time enable switch placed between a always-on 5 V rail and a downstream regulator or directly on a moderate-current rail. The configurable ramp lets designers stagger turn-on edges so no rail leads or lags its sequencing partner, and the 6 A rating covers many I/O and memory rails directly. Because the switch integrates its own charge-pump gate drive, sequencing behavior is characterized and repeatable, unlike discrete MOSFET solutions whose turn-on edge depends on external RC tolerances across temperature.
추천
Battery-Powered and Portable High-Current Loads
Portable instruments and battery-operated devices that drive high-current loads such as displays, radios, or motors benefit from the TPS22992 combination of very low on-resistance and small size. At a 3 A load, conduction loss through 8.7 mΩ is only about 78 mW, preserving battery runtime compared with higher-Ron switches, and the WQFN-HR 1.5 mm x 1.25 mm footprint suits handheld PCB space constraints. The enable-controlled switch disconnects idle subsystems to eliminate leakage, while the soft-start ramp protects downstream ceramic capacitors from hard-charging stress during each power event, extending system reliability in duty-cycled operation.
추천
Hot-Plug Style Capacitive Load Insertion
Systems that connect new load boards, mezzanine cards, or capacitor-heavy modules onto live backplanes must limit the inrush current drawn by the newly inserted load's bulk capacitance, or supply rails dip and upstream systems glitch. The TPS22992 addresses this directly: its adjustable rise time converts a hard connection into a controlled ramp, with inrush approximately equal to C_load multiplied by dV/dt. For a 200 uF module charged over 2 ms, that is roughly 0.5 A rather than tens of amps. The 6 A continuous rating then sustains full module operation with minimal voltage drop, making it a compact alternative to discrete hot-swap stages for moderate-current slots.
추천
추천 제품 요약
엔지니어링 참조 데이터: TPS22992 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | TPS22992S | TPS22997 |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Family Membership | TPS22992x family | TPS22992x family | TI load switch family (separate) |
주요 차별점
- Ultra-low 8.7 mΩ on-resistance at 6 A (vs TPS22997)
- Adjustable rise time for inrush control (vs Discrete MOSFET solutions)
- Trade-off: no output discharge on base variant (vs TPS22992S)
설계 노트
Estimated: at a full 6 A continuous load, conduction loss through the 8.7 mΩ switch is about 0.31 W (I2R = 36 A2 x 0.0087 Ω). The 1.5 mm x 1.25 mm WQFN-HR package cannot dissipate this alone, so connect the exposed pad to a solid ground plane with multiple thermal vias. Validate junction temperature using the datasheet theta-JA for your specific PCB stack-up rather than the JEDEC standard board figure.
Route the 6 A current path with wide copper - at minimum 2 oz copper pours on the input and output traces, since narrow traces add series resistance that defeats the purpose of the 8.7 mΩ switch. Place the input ceramic capacitor within 2 mm of the VIN pin to suppress supply droop during turn-on, and keep the rise-time capacitor (CT) node short and away from the high-current path to avoid noise coupling into the ramp circuit.
Do not exceed the 5.5 V absolute input limit - 5 V rails with transient overshoot can exceed this, so verify rail tolerance before choosing this switch. Also remember the family distinction: the TPS22992 does not actively discharge the output when disabled, so if downstream circuits need a defined low at shutdown, select the TPS22992S variant instead; substituting blindly between the two suffixes changes shutdown behavior.
규정 준수 정보
AEC-Q100 not_applicable/qualified: an E2E forum request (May 2025) for an AEC-qualified equivalent of the TPS22992SRXNR indicates no automotive-qualified version was offered at that time. RoHS/REACH/lead-free status must be verified per orderable suffix on the TI environmental page.
