TMI

STI3408B

Step-down type 1.5MHz Adjustable 600mV~6V 1.2A SOT-23-5 Voltage Regulators - DC DC Switching Regulators RoHS

SOT-23-5ROHS CompliantActive

1.5MHz, 1.2A Synchronous Step-Down Converter

Manufacturer: TMI
Manufacturer part #: STI3408B
Store part #: C708874
Package / case: SOT-23-5
Category: Voltage Regulators - DC DC Switching Regulators
Packaging: Tape & Reel (TR)

Datasheet (PDF)

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1,890 in stock

#C708874

Stock & price checked 5 days ago

Quantity	Unit price	Pack price
10+	₹5.65	₹56.50
100+	₹4.59	₹459.00
300+	₹4.06	₹1,218.00
3,000+	₹3.66	₹10,980.00
6,000+	₹3.35	₹20,100.00
9,000+	₹3.19	₹28,710.00

Quantity (min 10, multiples of 10)

10 × ₹5.65

₹56.50

excl. GST

₹66.67 incl. 18% GST

Need volume or a scheduled delivery? Request a quote

Dispatch in 7–10 working days
GST invoice with every order
Standard pack: 3,000 per reel

STI3408B

₹56.50 for 10 + GST

Specifications

Operating Temperature: -40℃~+85℃@(TA)
Function: Step-down type
Frequency - Switching: 1.5MHz
Number of Outputs: 1
Features: Overcurrent Protection;Light load efficient mode
Output Type: Adjustable
Topology: Buck
Operating Voltage: 2.5V~6V
Switch tube (built-in/external): Built-in
Output Voltage: 600mV~6V
Output Current: 1.2A
Quiescent Current: 40uA

Packaging & compliance

RoHS: ROHS Compliant
Lifecycle: Active
Packaging: Tape & Reel (TR)
Standard pack: 3,000 / Reel
Sold per: Piece
Minimum order: 10 (multiples of 10)
Unit weight: 0.048 g

Overview

The STI3408B is a constant frequency, current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. The output voltage can be regulated as low as 0.6V. The STI3408B can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. This device offers two operation modes, PWM control and PFM Mode switching control, which allows a high efficiency over the wider range of the load.

Applications

Cellular and Smart Phones
Wireless and DSL Modems
PDA/MID/PAD
Digital Still and Video Cameras

Key features

High Efficiency: Up to 96%
1.5MHz Constance Frequency Operation
1.2A Output Current
No Schottky Diode Required
2.5V to 6V Input Voltage Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
Low Quiescent Current: 40μA
Slope Compensated Current Mode Control for Excellent Line and Load Transient Response
Short Circuit Protection
Thermal Fault Protection
Inrush Current Limit and Soft Start
Input over voltage protection(OVP)
<1μA Shutdown Current
SOT23-5 Package

Alternatives

Similar parts — check the datasheet before substituting.

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