NPS7601UL - 1.5A Low-Iq Load Switch, WLCSP | Nexperia
Артикул: NPS7601UL ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $0.62 | $0,62 |
| 10 | $0.55 | $5,50 |
| 100 | $0.46 | $46,00 |
| 500 | $0.39 | $195,00 |
| 1.000 | $0.33 | $330,00 |
| 3.000 | $0.27 | $810,00 |
NPS7601UL Обзор
What is a load switch? A load switch is a discrete or integrated power-distribution switch - typically a controlled MOSFET plus support circuitry - placed between an upstream rail (battery, PMIC, DCDC output) and a downstream subsystem. When the function block is needed, the load switch is asserted ON to deliver current; when idle, it is asserted OFF to disconnect the load and starve leakage. This category belongs to power distribution ICs, which sit beneath power management and ultimately power-conversion ICs in the system hierarchy. Compared with a discrete P-FET + resistor divider, an integrated load switch adds reverse-current blocking, inrush control, and ultra-low quiescent current in a tiny footprint.
Key features of the NPS7601UL include an integrated low-Rdson pass element, factory-set or adjustable current-limit behaviour, controlled rise time via an external CT pin, low quiescent current on the order of single-digit microamps, and true reverse-current blocking (TRCB) that prevents current from flowing back into the source rail when VOUT exceeds VIN. The WLCSP package enables sub-1 mm x 1 mm PCB placement, suiting wearables, hearables, smartphones, IoT sensors, and other miniaturised systems where every square millimetre matters. The forward-drop regulation topology maintains VOUT close to VIN while the device is ON, minimising conduction losses.
Typical applications include always-on rails for low-power microcontrollers, power-rail gating for image sensors, OLED display bias switching, battery protection and isolation paths, USB Type-C cable power delivery line switches, and any subsystem requiring sequenced or controlled power-up. The reverse-current blocking feature is particularly valuable when multiple load switches share a bus, because it prevents back-feeding from a powered-up rail into an unpowered rail.
When designing with the NPS7601UL, place the device close to the upstream source and add a 1 uF to 10 uF ceramic bypass on the VIN and VOUT pins to stabilise the gate-driver loop and absorb load transients. The CT capacitor sets the VOUT rise time - larger values produce slower, lower-inrush turn-on at the cost of longer enable-to-ready delay. Keep the WLCSP land pattern symmetric and avoid placing signal traces under the die to prevent mechanical stress on the solder joints during thermal cycling.
This page synthesises distributor pricing, drop-in Nexperia alternatives, and application-specific design notes that are not consolidated in the manufacturer datasheet, helping engineers compare, select, and source the NPS7601UL quickly.
Аналоги без доработки для NPS7601UL — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
NPS7601UP
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
NPS7601
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
NPS7601UL Максимальные параметры и электрические характеристики
| Функция | Load switch with true reverse-current blocking |
| Input Voltage Range (VIN) | 1.5 V to 5.5 V |
| Continuous Load Current | 1.5 A |
| Топология | Regulated forward-drop |
| Reverse-Current Blocking | True reverse-current blocking (always-on protection) |
| Quiescent Current (Iq) | Low-Iq (single-digit uA, exact value in datasheet) |
| Rise-Time Control | External CT capacitor sets dV/dt |
| Enable Input | Active-high logic enable |
| Корпус | WLCSP (UL suffix) |
| Тип монтажа | Surface Mount |
| Каналы | 1 |
| Статус RoHS | Compliant (Nexperia standard) |
Конфигурация выводов NPS7601UL
| Контакт A1 | VIN — Input voltage supply |
| Контакт B1 | VOUT — Switched output to load |
| Контакт A2 | EN — Active-high enable input |
| Контакт B2 | CT — Rise-time programming capacitor |
| Контакт A3 | GND — Ground return |
| Контакт B3 | NC — Not connected (per datasheet) |
Типичное применение
NPS7601UL подходит для 6 применениеs: Battery-Powered Wearable Rails, USB Type-C VBUS Line Switch, OLED Display Bias Gating, Image Sensor Power Rail Switch, Always-On Microcontroller Rail, Battery Protection and Isolation Path.
Battery-Powered Wearable Rails
The NPS7601UL's 1.5 A continuous rating and 1.5 V to 5.5 V input range make it ideal for switching sub-system rails in wearables such as smartwatches, fitness bands, and hearables, where the upstream rail is a lithium-ion cell or PMIC output. Its true reverse-current blocking prevents back-drive into the battery or PMIC when an attached accessory supplies VBUS voltage that momentarily exceeds the local rail. The WLCSP footprint fits next to the SoC and sensor cluster on a cramped mainboard, and the single-digit uA quiescent current preserves battery life during deep sleep. A 1 nF to 10 nF CT capacitor programs a 1 ms to 10 ms rise time that limits inrush on the downstream decoupling bank, easing compliance with USB and Bluetooth module hot-attach budgets.
Рекомендуется
USB Type-C VBUS Line Switch
In USB Type-C cable and connector implementations, the NPS7601UL isolates the local VBUS rail from the cable VBUS to prevent reverse-current faults when a host or device swap momentarily back-feeds the local rail. Its 1.5 A rating covers most Type-C default-power and 5 V charging profiles, while true reverse-current blocking keeps the upstream PMIC or battery protected without an external Schottky. The regulated forward-drop topology holds VOUT within millivolts of VIN during ON state, minimising conduction loss across the load switch. A controlled CT-driven rise time damps cable-capacitance inrush that would otherwise trigger upstream hot-plug OC protection.
Рекомендуется
OLED Display Bias Gating
OLED panels draw pulsed current on ELVSS / ELVDD bias rails, and isolating those rails when the display is off extends panel lifetime and saves system power. The NPS7601UL's 1.5 A capability covers typical smartphone and wearable OLED bias currents, while true reverse-current blocking prevents the OLED's output capacitors from back-driving into the PMIC during display blanking transitions. The WLCSP package sits next to the display connector with minimal PCB real estate. Adjusting the CT capacitor tailors the rise time to the panel's inrush tolerance, reducing visible artefacts during panel-on sequences.
Рекомендуется
Image Sensor Power Rail Switch
Image sensors in mobile and IoT cameras require a quiet, controlled power-up sequence to avoid dark-frame artefacts and inrush-induced reset events. The NPS7601UL provides 1.5 A of switchable current with a CT-programmable rise time that soft-starts the sensor's regulator input. True reverse-current blocking protects the upstream PMIC when the sensor's local regulator momentarily back-drives due to a sequencing fault. The compact WLCSP package fits alongside camera modules on smartphone mainboards where board area is at a premium. Low quiescent current keeps the disabled branch from draining the battery during standby.
Рекомендуется
Always-On Microcontroller Rail
Always-on microcontrollers, real-time clocks, and BLE radios benefit from a dedicated, reverse-current-protected rail that stays alive through deep sleep. The NPS7601UL's true reverse-current blocking ensures that even when the main PMIC is off and a residual rail is still active, no back-drive paths develop. Its 1.5 A capability covers the peak currents of BLE transmit bursts and RTC domain loads. The CT pin lets the designer slow the turn-on edge to avoid simultaneous inrush on the shared decoupling network during wake-up events.
Рекомендуется
Battery Protection and Isolation Path
The NPS7601UL can be placed between the battery pack output and the PMIC input as a software-controlled isolation switch in designs that need field-replaceable batteries, ship-mode, or staged power-on. Its true reverse-current blocking prevents a USB supply inserted into a depleted system from back-charging the battery. The 1.5 A rating handles peak inrush of downstream regulators during wake-up. Industrial-grade temperature support and Nexperia's automotive-grade manufacturing pedigree make it suitable for portable medical, asset-tracking, and e-mobility accessories that demand reliable isolation behaviour.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для NPS7601UL — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | NPS7601UP | NPS7601 |
|---|---|---|---|
| Brand | Nexperia | Nexperia | Nexperia |
| Package | WLCSP (UL suffix) | WLCSP (UP suffix) - same family | WLCSP family - same |
| Continuous Load Current | 1.5 A | 1.5 A | 1.5 A |
| Input Voltage Range | 1.5 V to 5.5 V | 1.5 V to 5.5 V | 1.5 V to 5.5 V |
| Reverse-Current Blocking | True reverse-current blocking (always-on) | True reverse-current blocking (always-on) | True reverse-current blocking (always-on) |
| Topology | Regulated forward-drop | Regulated forward-drop | Regulated forward-drop |
| Rise-Time Control | External CT capacitor | External CT capacitor | External CT capacitor |
| Enable Logic | Active-high | Active-high | Active-high |
Ключевые отличия
- Always-on true reverse-current blocking (против Generic discrete P-FET load switch)
- Compact WLCSP footprint (против QFN-packaged competitors)
- CT-programmable rise time (против Fixed rise-time load switches)
Заметки по проектированию
Place a 1 uF to 10 uF low-ESR ceramic bypass capacitor as close as possible to the VIN and VOUT balls of the WLCSP land pattern. The WLCSP depends on the PCB land pattern and thermal vias under the die for both electrical grounding and thermal spreading. Avoid routing signal traces under the die to minimise mechanical stress on the solder joints during thermal cycling. Nexperia's recommended land pattern should be followed exactly for reflow reliability.
Select the CT capacitor value to balance inrush current against power-rail sequencing timing budgets - 1 nF typically yields ~1 ms rise time, 10 nF yields ~10 ms. In multi-rail designs, sequence the load switches so that back-feeding rails cannot exceed VIN during transient conditions; the always-on reverse-current blocking will then safely prevent any residual back-drive. Verify sequencing with worst-case timing across the full temperature range.
Do not exceed the 1.5 A continuous load current rating without verifying thermal performance in the WLCSP; sustained high current requires thermal vias and adequate copper pour. Do not assume reverse-current blocking is disabled when EN is low - the TRCB block is always-on, which is the intended behaviour, but designers may need an external path to discharge VOUT if very fast turn-off is required. Always consult the Nexperia NPS7601 datasheet before laying out the PCB.
Информация о соответствии
RoHS compliant per Nexperia standard product compliance. AEC-Q100 not applicable to this consumer/industrial load switch; consult Nexperia automotive-grade datasheets if AEC-Q100 is required.
