TMI STI3408B
| Manufacturer | TMIAsian Brands |
| MPN | STI3408B |
| LCSC Part # | C708874 |
| Packaging | SOT-23-5 |
| Customer # | |
| Key Attributes | 1.5MHz, 1.2A Synchronous Step-Down Converter |
| Datasheet | |
| Alternative Parts | 10 |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | TMI | |
| Packaging | SOT-23-5 | |
| 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 |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | TMI | |
| Packaging | SOT-23-5 | |
| Operating Temperature | -40℃~+85℃@(TA) | |
| Function | Step-down type | |
| Frequency - Switching | 1.5MHz | |
| Number of Outputs | 1 | |
| Features | Overcurrent Protection;Light load efficient mode |
| Type | Description | |
|---|---|---|
| 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 |
Introduction
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.
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
Applications
- Cellular and Smart Phones
- Wireless and DSL Modems
- PDA/MID/PAD
- Digital Still and Video Cameras
| Qty | Unit Price | Total Amount |
|---|---|---|
| 10+ | $ 0.0433 | $ 0.43 |
| 100+ | $ 0.0343 | $ 3.43 |
| 300+ | $ 0.0298 | $ 8.94 |
| 3,000+ | $ 0.0264 | $ 79.20 |
| 6,000+ | $ 0.0237 | $ 142.20 |
| 9,000+ | $ 0.0223 | $ 200.70 |
Standard Packaging3000/Full Reel | ||
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | TMI | |
| Packaging | SOT-23-5 | |
| 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 |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | TMI | |
| Packaging | SOT-23-5 | |
| Operating Temperature | -40℃~+85℃@(TA) | |
| Function | Step-down type | |
| Frequency - Switching | 1.5MHz | |
| Number of Outputs | 1 | |
| Features | Overcurrent Protection;Light load efficient mode |
| Type | Description | |
|---|---|---|
| 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 |
Introduction
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.
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
Applications
- Cellular and Smart Phones
- Wireless and DSL Modems
- PDA/MID/PAD
- Digital Still and Video Cameras
C708874 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | - |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | - |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Alternative Parts
| MPN | Manufacturer | Packaging | Availability | Unit Price | ||
|---|---|---|---|---|---|---|
| STI3411A | TMI | SOT-23-5 | 320 | $ 0.0796 | ||
| TMI3411 | TMI | SOT-23-5 | 18,840 | $ 0.0737 | ||
| TMI3408 | TMI | SOT-23-5 | 43,842 | $ 0.0421 | ||
| TMI3408F | TMI | SOT-23-5 | 23,967 | $ 0.0382 | ||
| TMI3408C | TMI | SOT-23-5 | 4,720 | $ 0.0382 | ||
| TMI3410 | TMI | SOT-23-5 | 4,784 | $ 0.0552 | ||
| TMI3112H | TMI | SOT-23-5 | 48,195 | $ 0.0814 | ||
| TMI3113B | TMI | SOT-23-5 | 1,140 | $ 0.1021 | ||
| TMI3101 | TMI | SOT-23-5 | 1,840 | $ 0.0615 | ||
| STI3410 | TMI | SOT-23-5 | 0 | $ 0.1026 |



