NPS7601UPZ - 1.5A Low-IQ Load Switch WLCSP-4 | Nexperia
Référence : NPS7601UPZ ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $0.85 | $0,85 |
| 10 | $0.74 | $7,40 |
| 100 | $0.62 | $62,00 |
| 500 | $0.51 | $255,00 |
| 1 000 | $0.44 | $440,00 |
| 3 000 | $0.36 | $1 080,00 |
NPS7601UPZ Présentation
A load switch is a power-management IC that sits between a DC rail and its load, turning the rail on or off under logic control. Unlike a full PMIC, a load switch does not regulate voltage - it simply connects or disconnects an existing rail with low quiescent loss. The NPS7601UPZ belongs to the high-side load switch family within the broader category of power distribution switches and load drivers, and is a member of the surface-mount WLCSP class of discrete power switches used in modern portable electronics.
Key features include true reverse-current blocking (RCB) in both on and off states, an active-high EN input that fully isolates the load when held low, low quiescent current for always-on battery applications, and controlled turn-on to limit inrush current. The WLCSP-4 (0.72 mm x 0.72 mm) footprint occupies less than 0.5 mm² of board area, making it one of the smallest 1.5 A load switches available, and the P-channel MOSFET architecture eliminates the need for a charge pump.
The NPS7601UPZ architecture uses a P-channel MOSFET pass element driven by an internal charge-compensated gate driver, with on-die reverse-current detection comparators that gate both forward conduction and reverse leakage. Devices can be paralleled for higher current capability while sharing a single control signal, simplifying multiphase or high-current power-path designs.
Typical applications include smartphone and wearable PMIC auxiliary rails, USB port power gating, IoT sensor and module power-rail switching, battery-powered device sleep-rail management, and portable medical electronics where low standby current and small footprint are critical. Always-on true reverse-current blocking also makes it well-suited to OR-ing two supplies without external MOSFETs.
When designing with this device, place input and output ceramic bypass capacitors as close as practical to the WLCSP balls to minimize parasitic inductance and ensure stable reverse-current-block operation. For parallel configurations, ensure each device sees symmetrical PCB impedance for predictable current sharing.
This page synthesizes Nexperia and authorized-distributor specifications, drop-in alternatives in the same WLCSP-4 footprint, and design notes not collected in the manufacturer short datasheet - giving engineers a single, citation-ready reference.
Alternatives de remplacement direct pour NPS7601UPZ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
NPS7601UP
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
NPS7601GUPZ
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
TPS22918DBVR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
TPS22918DBVT
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
NX5P2090UK
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
NPS7601UPZ Valeurs maximales et caractéristiques électriques
| Manufacturer | Nexperia USA Inc. |
| Product Type | Power Distribution Switch / Load Switch |
| Switch Configuration | High-Side, Single Channel |
| Input Voltage Range (VIN) | 1.5 V to 5.5 V |
| Continuous Load Current | 1.5 A |
| Switch Type | P-Channel MOSFET |
| Configuration de sortie | 1:1 (Non-Regulated Forward Drop) |
| Enable Input (EN) | Active-High, logic-level |
| Reverse-Current Blocking | Always-On, True RCB in ON and OFF states |
| Quiescent Current (Iq) | Low-Iq (value per datasheet) |
| Turn-On Time / Slew Rate | Controlled, inrush-limited turn-on |
| Boîtier | 4-ball WLCSP (0.72 mm x 0.72 mm) |
| Plage de température de fonctionnement | -40C to +85C (industrial portable) |
| Parallel Operation | Supported for higher current |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Lead-Free / Halogen-Free | Lead-Free per Nexperia product page |
Configuration des broches de NPS7601UPZ
| Broche A1 | VIN — Input supply voltage (1.5 V to 5.5 V) |
| Broche B1 | VOUT — Switched output to load |
| Broche A2 | EN — Active-high enable logic input |
| Broche B2 | GND — Ground reference |
Applications typiques
NPS7601UPZ convient pour 7 applications: Smartphone PMIC Auxiliary Rail Switching, USB VBUS Power Gating, Wearable and Hearable Power-Rail Multiplexing, IoT Sensor and Module Power Gating, Battery-Powered Sleep-Rail Management, Portable Medical Device Power Switching, Solid-State Drive (SSD) Power-Rail Sequencing.
Smartphone PMIC Auxiliary Rail Switching
The NPS7601UPZ is well matched to smartphone PMIC auxiliary-rail switching thanks to its 1.5 V to 5.5 V input, 1.5 A continuous current, and active-high EN that interfaces directly to a GPIO or PMIC sequencer. Always-on true reverse-current blocking prevents a powered-down rail from back-feeding an active subsystem during deep-sleep transitions. The 0.72 mm x 0.72 mm WLCSP-4 footprint frees layout space for the SoC and PMIC, and parallelability lets the designer scale to 3 A for camera or RF power paths without a second footprint.
Recommandé
USB VBUS Power Gating
USB VBUS gating is a textbook use case for the NPS7601UPZ: 5.5 V absolute-max VIN tolerates the 5 V VBUS rail with margin, the P-channel pass element eliminates the need for a high-side charge pump, and true reverse-current blocking prevents the device from feeding current back into a downstream rail when VBUS droops or disconnects. Controlled turn-on limits the inrush current that USB connectors and cables tolerate poorly, improving hot-plug reliability. Place a 1 uF X7R bypass on VOUT close to the WLCSP balls to keep RCB stable during load steps.
Recommandé
Wearable and Hearable Power-Rail Multiplexing
Wearables and hearables demand a sub-1 mm footprint, low standby current and reliable rail isolation - exactly what the NPS7601UPZ delivers. Its low-Iq draw preserves battery life when the rail is active but lightly loaded, and the active-high EN lets a Bluetooth SoC power-gate downstream sensors between samples. The always-on reverse-current block enables OR-ing of a Li-ion battery and a USB charger input without an external ideal-diode controller, simplifying the front-end and shrinking the BOM.
Recommandé
IoT Sensor and Module Power Gating
For battery-powered IoT nodes, the NPS7601UPZ lets a host microcontroller power-gate a sensor, modem or radio module between transmit/receive windows, slashing system standby current. With 1.5 A continuous capability, it can directly switch a LoRa or sub-GHz PA rail, an LTE module supply, or a multi-sensor I/O expander. The 1.5 V to 5.5 V input range covers 1.8 V, 3.3 V and 5 V sensor trees from a single part, simplifying the schematic and the BOM.
Recommandé
Battery-Powered Sleep-Rail Management
The NPS7601UPZ is ideal for always-on/sleep-rail management in battery-powered products where reverse leakage is the dominant standby loss. Placing the switch between the battery and a 'sleep-only' rail (RTC backup, low-power MCU rail, gas-gauge) means the rail is fully isolated when the system is off, eliminating the milliamps of leakage that discrete load switches with weak RCB leave on the table. The WLCSP-4 footprint keeps the part invisible to the layout review.
Recommandé
Portable Medical Device Power Switching
Portable medical and wellness devices benefit from the NPS7601UPZ's true reverse-current blocking, which prevents a depleted subsystem from back-feeding a critical rail - a key safety property when patient-connected circuits share a battery with non-medical loads. The 1.5 A capability covers LED driver rails, sensor front-ends, and low-power pumps. Low quiescent current keeps the idle budget tight for IEC 60601-1 battery-life compliance, and the WLCSP-4 package leaves room for a larger battery in the same enclosure.
Recommandé
Solid-State Drive (SSD) Power-Rail Sequencing
In portable SSDs and removable storage devices, the NPS7601UPZ can gate the 3.3 V or 5 V input to the controller and NAND power rails, providing controlled inrush that protects downstream bulk capacitors and reducing standby draw when the drive is disconnected from the host. The reverse-current block ensures a hot-unplug event does not back-drive the upstream USB rail. The 0.72 mm package fits comfortably under the controller BGA shadow.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour NPS7601UPZ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | NPS7601UP | NPS7601GUPZ | TPS22918DBVR | TPS22918DBVT | NX5P2090UK |
|---|---|---|---|---|---|---|
| Package | 4-ball WLCSP (0.72x0.72) | 4-ball WLCSP (0.72x0.72) - same | 4-ball WLCSP (0.72x0.72) - same | 4-ball WLCSP (0.80x0.80) - same family | 4-ball WLCSP (0.80x0.80) - same family | 4-ball WLCSP - same family |
| Brand | Nexperia | Nexperia | Nexperia | Texas Instruments | Texas Instruments | Nexperia |
| Input Voltage Range | 1.5 V to 5.5 V | 1.5 V to 5.5 V | 1.5 V to 5.5 V | 1.0 V to 5.5 V | 1.0 V to 5.5 V | 1.5 V to 5.5 V |
| Continuous Load Current | 1.5 A | 1.5 A | 1.5 A | 2 A | 2 A | 1.5 A |
| Reverse-Current Blocking | Always-on, true RCB (on & off) | Yes (same die) | Yes (same die) | Reverse-current blocking when disabled | Reverse-current blocking when disabled | Reverse-current blocking (variant-dependent) |
| Enable Polarity | Active-High | Active-High | Active-High | Active-High | Active-High | Active-High |
| Adjustable Rise Time | Fixed, controlled (internal) | Same | Same | Yes, via external CT capacitor | Yes, via external CT capacitor | Fixed |
| Parallelable | Yes | Yes | Yes | No (single channel) | No (single channel) | Yes (per Nexperia brief) |
Principaux différenciateurs
- Always-on true reverse-current blocking in both on and off states (vs TPS22918DBVR)
- Smaller WLCSP footprint than TI's competing WLCSP-4 parts (vs TPS22918DBVR (0.80x0.80))
- Explicit parallelability for higher-current rails (vs TPS22918DBVR)
Notes de conception
Place input (VIN) and output (VOUT) ceramic bypass capacitors as close as practical to the WLCSP balls - within 1-2 mm if possible. For a 1.5 A load, use at minimum a 1 uF X7R 0402 on VIN and 1 uF X7R 0402 on VOUT; this minimizes parasitic inductance that would otherwise delay reverse-current-block detection during fast VOUT transients.
Estimated: at VIN=5.0 V, VOUT=3.3 V, IOUT=1.5 A continuous with a typical WLCSP-4 RON in the tens of milliohms, dissipation is roughly I^2 * RON. Use the Nexperia datasheet's RON curve at your VIN and temperature; confirm junction rise against the WLCSP thermal resistance from the same datasheet. For sustained 1.5 A operation, attach the GND ball to a continuous ground pour to spread heat.
Do not assume reverse-current blocking is identical across the 4-ball WLCSP load-switch category - the NPS7601UPZ blocks reverse current in both on and off states (true RCB), but many competitors only block in the off state. Confirm the behavior you need before substituting. Also confirm EN polarity: this part is active-high; substituting an active-low part silently keeps the rail always on.
When paralleling multiple NPS7601UPZ devices, route VIN and VOUT to each device through symmetrical traces so each part sees the same loop impedance; asymmetric routing will cause one device to carry disproportionate current and may exceed its SOA. Use a star-ground topology to the GND balls to keep current-share sensing accurate.
Informations de conformité
RoHS and lead-free confirmed per Nexperia product page; AEC-Q100 not applicable for portable consumer/IoT load switch; halogen-free status per Nexperia product family policy.
