MIC2514YM5-TR - 1.2A High-Side Power Switch | Microchip
부품 번호: MIC2514YM5-TR ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.2 | $2.20 |
| 10 | $2.05 | $20.50 |
| 100 | $1.85 | $185.00 |
| 500 | $1.65 | $825.00 |
| 1,000 | $1.45 | $1,450.00 |
MIC2514YM5-TR 개요
A high-side switch, sometimes called a power distribution switch or load switch, is a power management IC that places a switching element between a supply rail and a load, controlling power delivery from the positive side of the rail. In the broader hierarchy, it sits within power management ICs, alongside hot-swap controllers and power muxes, and it replaces the discrete combination of a high-side driver plus external P-channel MOSFET.
Key features of the MIC2514 include its IttyBitty SOT-23-5 footprint that saves board area versus discrete solutions, a TTL-compatible enable input that interfaces directly with 3.3 V and 5 V logic, and integrated protection in the MOSFET stage for robust load switching. The active-high enable polarity simplifies drive from microcontroller GPIO ports without level inversion.
Technically, the device integrates a protected P-channel MOSFET power stage with control and protection circuitry, so the designer does not need a separate gate-drive supply or charge pump. This architecture is aimed at low-voltage boards where the switch controls power to a single downstream load or port.
Typical applications include USB-style peripheral power switching, hot-board insertion power control, and general-purpose load switching in low-voltage industrial and consumer systems where a single high-side switch replaces a discrete driver-MOSFET pair.
Design consideration: keep the input within the 3 V to 13.5 V operating range and budget for the current-limit behavior at full load; a small output capacitor helps manage inrush into capacitive loads.
This page synthesizes distributor pricing, drop-in family alternatives, design notes, and practical guidance not found in a single manufacturer datasheet, with pricing verified as of 2026-10-16.
드롭인 대체품: MIC2514YM5-TR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
MIC2515YM5-TR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
MIC2514YM5
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
MIC2514YM5-TR 최대 정격 & 전기적 특성
| Product Type | Integrated High-Side Power Switch (Power Distribution Switch) |
| Switch Element | Protected P-channel MOSFET |
| 출력 수 | 1 |
| 입력 전압 범위 | 3 V to 13.5 V |
| Rated Switch Current | 1.2 A |
| 전류 제한 | 1.9 A |
| Control Input | TTL compatible, active high enable |
| Polarity | High side (positive rail switching) |
| 패키지 | SOT-23-5 (SC-74A, SOT-753) |
| 실장 유형 | Surface Mount |
| Protection Features | Protected MOSFET power stage (per manufacturer description) |
| Packaging | Tape and Reel (-TR suffix) |
MIC2514YM5-TR 핀 구성
| 핀 1 | IN — Input supply voltage, 3 V to 13.5 V |
| 핀 2 | GND — Ground |
| 핀 3 | EN — TTL-compatible active-high enable input |
| 핀 4 | NC — Not connected (per datasheet) |
| 핀 5 | OUT — Switched output to load |
일반적인 애플리케이션
MIC2514YM5-TR 적합 용도: 6 애플리케이션s: USB Port Power Switching, Hot-Board Insertion Power Control, Industrial 12 V Load Switching, Battery-Powered Peripheral Power Gating, Set-Top Box and Consumer Appliance Subsystem Power, Telecom and Networking Card Auxiliary Rail Switching.
USB Port Power Switching
The MIC2514YM5-TR fits USB power switching because its 3 V to 13.5 V input range fully covers the 5 V USB VBUS rail, and its 1.2 A rated switch current supports standard USB port load requirements. The 1.9 A current limit protects the host supply against shorted cables or overloaded peripherals, while the TTL-compatible active-high enable connects directly to a microcontroller GPIO for software-controlled port power and reset. Placed between the 5 V rail and the port VBUS pin with local decoupling, the integrated P-channel MOSFET replaces a discrete driver-MOSFET pair and saves board area in the SOT-23-5 footprint, an important advantage in multi-port hub and dock designs.
추천
Hot-Board Insertion Power Control
When a board or module is inserted into a live backplane, the uncharged bulk capacitance on the daughter card draws a large inrush current that can collapse the supply rail or erode connector pins. The MIC2514YM5-TR addresses this by switching the live rail through its protected P-channel MOSFET, whose internal current limit of approximately 1.9 A bounds the inrush event. The 3 V to 13.5 V operating range accommodates common backplane logic supplies, and the active-high enable allows the host to sequence power after card-detect assertion. This makes it a compact alternative to discrete hot-swap MOSFET plus driver combinations in low-voltage card cages and removable-module systems.
추천
Industrial 12 V Load Switching
The upper end of the MIC2514YM5-TR input range, 13.5 V, directly covers nominal 12 V industrial supplies with margin for regulation tolerance. This lets one device switch sensors, indicator loads, or auxiliary circuits on a 12 V rail while being commanded from a 3.3 V or 5 V logic controller, because the enable input is TTL compatible and does not require level shifting to the switched domain. The 1.2 A continuous rating covers solenoid drivers, relays coil circuits, and communication module supplies common in factory automation panels. The integrated current limit provides a first line of short-circuit defense on distributed control panels where wiring faults are a realistic field condition.
추천
Battery-Powered Peripheral Power Gating
In battery-operated equipment, peripherals that remain connected to the rail draw standby leakage even when idle. The MIC2514YM5-TR lets the system microcontroller cut power entirely to radios, sensors, or displays through the active-high enable, achieving true zero-load disconnect rather than low-power sleep. Its 3 V minimum input is compatible with lithium-cell and multi-cell alkaline stacks, and the SOT-23-5 package keeps the switching function from dominating a compact PCB. Designers should verify the control-input quiescent and shutdown current figures in the Microchip datasheet when the switch itself must stay enabled at very low duty cycles, since these numbers set the gating overhead.
추천
Set-Top Box and Consumer Appliance Subsystem Power
Consumer appliances contain many small subsystems - tuners, IR receivers, fan assemblies, indicator LEDs - that benefit from individually switched rails for standby-power compliance and thermal management. The MIC2514YM5-TR provides one such channel in minimal board area: the protected P-channel MOSFET handles up to 1.2 A continuous, the TTL-compatible enable is driven by the main SoC GPIO, and the 13.5 V maximum input covers 12 V internal rails. The internal 1.9 A current limit protects against shorted fan or connector faults without external sense resistors. Using several of these switches allows the firmware to power-gate unused subsystems, reducing standby consumption in ENERGY STAR-regulated product categories.
추천
Telecom and Networking Card Auxiliary Rail Switching
Line cards and network modules frequently need a small, protected switch for auxiliary rails such as 12 V fan feeds, optical-module supplies, or maintenance-accessory ports. The MIC2514YM5-TR suits this role: its 3 V to 13.5 V range covers telecom auxiliary rails, the 1.2 A rating handles typical module loads, and the current limit prevents a single failed module from dragging down a shared supply. The active-high TTL enable integrates with card-management microcontrollers for power sequencing and remote reset of a misbehaving module. Its SOT-23-5 footprint allows dense per-port replication across a card, where a discrete MOSFET-plus-driver solution would consume significantly more area per channel.
추천
추천 제품 요약
엔지니어링 참조 데이터: MIC2514YM5-TR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | MIC2515YM5-TR | MIC2514YM5 |
|---|---|---|---|
| Package | SOT-23-5 (SC-74A/SOT-753) | SOT-23-5 - same | SOT-23-5 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Input Voltage Range | 3 V to 13.5 V | 3 V to 13.5 V | 3 V to 13.5 V |
| Rated Switch Current | 1.2 A | 1.2 A class | 1.2 A |
| Enable Input | TTL compatible, active high | TTL compatible, active high | TTL compatible, active high |
| Pin 5 Function | NC (no connect) | Fault flag (family variant feature) | NC (no connect) |
| Packaging | Tape & Reel (-TR) | Tape & Reel | Tube |
주요 차별점
- Simplest family variant with NC pin 5 (vs MIC2515YM5-TR)
- Integrated protection replaces discrete driver-MOSFET pair (vs Discrete P-channel MOSFET solution)
- TTL-compatible active-high enable (vs Competing SOT-23-5 load switches with active-low shutdown)
설계 노트
Keep the input supply within the 3 V to 13.5 V absolute range at all times, including load transients and line surges; the protected P-channel MOSFET is rated only within this window. Size the load so continuous current stays at or below the 1.2 A rating, treating the 1.9 A current limit as a fault-protection boundary rather than a continuous operating point. When switching highly capacitive loads, confirm that the inrush duration under the current limit is acceptable per the Microchip datasheet thermal guidance.
Place a ceramic decoupling capacitor close to the IN pin and an output capacitor near the load to damp supply transients during switching events. The SOT-23-5 package dissipates heat through its leads, so provide adequate copper area on the ground and output traces - at minimum, widen the OUT and GND traces for 1.2 A continuous current or use short pours. Keep the EN trace away from the switched OUT node to prevent capacitive coupling that could false-trigger the TTL-compatible input during fast switching edges.
The most common substitution mistake is assuming all SOT-23-5 high-side switches share the same pinout - they frequently do not. When cross-referencing to another Microchip family member such as the MIC2515, verify pin 5 usage (NC versus fault flag) and confirm enable polarity, because some competitors use active-low shutdown pins. Also verify Rds(on) at your actual input voltage from the official datasheet, not from third-party summaries, before finalizing conduction-loss and junction-temperature calculations for production designs.
규정 준수 정보
Compliance declarations were not present in the provided source data. Verify RoHS/REACH status on the official Microchip MIC2514 product page or distributor compliance certificates before procurement.
