Mfr Part #:

ET3158A

Mfr Name: ETEK

The ETEK ET3158A is an advanced load management switch designed for applications requiring a highly integrated solution. It operates from 1.5V to 6V and features True Reverse Current Blocking.

✓ Total Stock: 2,745 pcs

$ Price Range: $0.45

ET3158A Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Smaxon Electronics ✓ Non-Authorised Inventory information	2,457 pcs On Request	2457 pcs	On Request	1	On Request	On Request	1801+	On Request	On Request
Optech Co.,Limited ✓ Non-Authorised Inventory information	288 pcs On Request	288 pcs	On Request	1	On Request	On Request	18+	On Request	On Request

ET3158A Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	ETEK
Load Capacitance	up to 200uF
Mounting Type	Surface Mount
Quiescent Current	8uA typical
SVHC Present	Not Present
Turn On Time	2.7ms typical
Voltage	1.5V to 6V

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ET3158A Description

Short technical summary and product information.

The ETEK ET3158A is a load switch designed for applications requiring efficient power management. It operates within a voltage range of 1.5V to 6.0V DC, making it suitable for a variety of consumer, portable, and industrial devices.

Key features include a low quiescent current of 8uA typical and a typical on-resistance of 33mΩ at 3.6V, contributing to low standby power consumption. The device incorporates slew-rate control to prevent inrush current and voltage droop on power rails, with a typical turn-on time of 2.7ms. It also features True Reverse Current Blocking (TRCB) to prevent unwanted current flow from OUT to IN.

The ET3158A is housed in a compact DFN4 (1.2mm x 1.6mm) package, ideal for space-constrained portable equipment. Control is managed by a logic input (Active HIGH) that interfaces directly with low-voltage control signals. The switch is ESD protected, withstanding above 8kV contact IEC, 4kV HBM, and 1.5kV CDM.

Applications for the ET3158A include PDAs, smartphones, notebooks, portable media players, digital cameras, GPS navigation devices, data storage, and other optical, industrial, medical, and health-care devices.

ET3158A Quick Information

Product Type: Load Switch

Canonical Name: ET3158A Load Switch

ET3158A Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

ET3158A Estimated Pricing

Qty	Low	High
1+	$0.45	$0.45

Estimated market price range - modelled values for guidance only, not live distributor offers.

ET3158A Features

Operates from 1.5V to 6V input voltage.
Low quiescent current of 8uA typical.
Slew-rate controlled turn-on characteristic.
True Reverse Current Blocking (TRCB) function.
Compact DFN4 package for small form factors.

ET3158A Applications

Suitable for PDAs and smartphones.
Used in notebook computers.
Ideal for portable media players.
Applicable to digital cameras.
Designed for data storage devices.

ET3158A FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range of the ET3158A?

1.5V to 6V DC.

What is the package type of the ET3158A?

DFN4 (1.2mm × 1.6mm).

What is the typical on-resistance?

33mΩ typical at VIN=3.6V (datasheet).

Does the ET3158A have reverse current blocking?

Yes, true reverse current blocking.

What is the quiescent current?

8µA typical.

What ESD protection does the ET3158A offer?

Above 8kV contact IEC, 4kV HBM, 1.5kV CDM.

What is the maximum load capacitance?

Up to 200µF.