Mfr Part #:

MIC4680-3.3BM

The Micrel Inc. MIC4680-3.3BM is a 1A 200kHz SuperSwitcher buck regulator. It offers a 3.3V fixed output voltage and operates over a wide input range.

✓ Total Stock: 60,267 pcs

$ Price Range: $1.08

MIC4680-3.3BM Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	60,267 pcs On Request	60267 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

MIC4680-3.3BM Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Micrel Inc.
Efficiency	Up to 90%
Input Voltage	4V to 34V
Mounting Type	Surface Mount
Output Current	1.3A
Output Voltage	3.3V

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MIC4680-3.3BM Description

Short technical summary and product information.

The MIC4680-3.3BM from Micrel Inc. is an easy-to-use, fixed output voltage step-down (buck) switch-mode voltage regulator. This SuperSwitcher™ regulator operates at a fixed 200kHz frequency and can deliver up to 1.3A of continuous output current.

It features a wide input voltage range of 4V to 34V, providing excellent line, load, and transient response. The device includes cycle-by-cycle current limiting and thermal shutdown for protection under fault conditions. In shutdown mode, it draws less than 2µA of standby current. The MIC4680-3.3BM achieves up to 90% efficiency and is internally compensated for fast transient response.

This regulator is available in an 8-lead SOP (small outline package) suitable for all surface mount solutions. It requires a minimum number of external components, making it a simple solution for various power management applications. The operating junction temperature range is –40°C to +125°C.

MIC4680-3.3BM Quick Information

Product Type: Buck Regulator

Series: MIC4680

Canonical Name: MIC4680-3.3BM 1A 200kHz SuperSwitcher Buck Regulator

Subcategory: DC-DC Switching Regulators

MIC4680-3.3BM Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

MIC4680-3.3BM Estimated Pricing

Qty	Low	High
1+	$1.08	$1.08

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

MIC4680-3.3BM Features

1.3A continuous output current capability.
Fixed 200kHz switching frequency.
Wide 4V to 34V operating input voltage.
Up to 90% efficiency.
8-lead SOP surface mount package.

MIC4680-3.3BM Applications

Simple 1A high-efficiency step-down regulator.
On-card switching power supplies.
Efficient preregulator applications.
Replacement for TO-220 designs.

MIC4680-3.3BM FAQs

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

What is the input voltage range?

4V to 34V.

What is the output voltage?

3.3V.

What is the maximum output current?

1.3A.

What is the switching frequency?

200kHz.

What is the maximum efficiency?

Up to 90%.

What is the package type?

SOP-8 surface mount.

What is the operating temperature range?

–40°C to +125°C junction temperature.