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IC REG BUCK ADJUSTABLE 3A 8SOPWR
| Type | Parameter |
| Lifecycle Status | ACTIVE (Last Updated: 3 days ago) |
| Contact Plating | Gold, Silver |
| Mounting Type | Surface Mount |
| Number of Pins | 8 |
| Packaging | Tape & Reel (TR) |
| Pbfree Code | yes |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| ECCN Code | EAR99 |
| Terminal Position | DUAL |
| Peak Reflow Temperature (Cel) | 260 |
| Base Part Number | TPS54335 |
| Number of Outputs | 1 |
| Output Type | Adjustable |
| Operating Supply Voltage | 28V |
| Max Supply Voltage | 28V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Output Configuration | Positive |
| Max Output Voltage | 24V |
| Topology | Buck |
| Frequency - Switching | 50kHz~1.5MHz |
| Synchronous Rectifier | Yes |
| Max Duty Cycle | 90 % |
| Height | 1.7mm |
| Width | 3.9mm |
| REACH SVHC | No SVHC |
| Lead Free | Lead Free |
| Factory Lead Time | 12 Weeks |
| Mount | Surface Mount |
| Package / Case | 8-PowerSOIC (0.154, 3.90mm Width) |
| Operating Temperature | -40°C~150°C TJ |
| JESD-609 Code | e3 |
| Part Status | Active |
| Number of Terminations | 8 |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Function | Step-Down |
| Output Voltage | 24V |
| Max Output Current | 3A |
| Input Voltage-Nom | 12V |
| Min Supply Voltage | 4.5V |
| Nominal Supply Current | 310μA |
| Quiescent Current | 600μA |
| Voltage - Output (Min/Fixed) | 0.8V |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Min Output Voltage | 800mV |
| Max Junction Temperature (Tj) | 150°C |
| Length | 4.89mm |
| Thickness | 1.48mm |
| RoHS Status | ROHS3 Compliant |
TPS54335ADDAR Step-Down Converter Description
The TPS54335A step-down converter is synchronous converter with input voltage ranging from 4.5 to 28 V. It has an inbuilt low-side switching FET, which eliminates the need for an external diode, resulting in a lower component count.
The integrated 128-m and 84-m MOSFETs, low IQ, and pulse skipping at mild loads optimize efficiency. The shutdown supply current is decreased to 2 A by using the enable pin. With a well-regulated voltage reference that is 1.5 percent over-temperature, this step-down (buck) converter delivers accurate control for a range of loads.
The TPS5433xA series of devices are protected in overload conditions by cycle-by-cycle current limiting on the high-side MOSFET, which is reinforced by a low-side sourcing current limit that prevents current runaway. To prevent excessive reverse current, a low-side sinking current limit switches off the low-side MOSFET. If the overcurrent condition lasts longer than the predetermined time, hiccup protection is activated. When the die temperature reaches the threshold, thermal shutdown disables the device and re-enables it after the built-in thermal hiccup time.
TPS54335ADDAR Step-Down Converter Features
Pulse Skipping for Light-Load Efficiency
0.8-V Voltage Reference with ±0.8% Accuracy
8-Pin SO PowerPAD and 10-Pin VSON Packages
Continuous Output Current: 3 A
Internal 2-ms Soft-Start,
Low 2-μA Shutdown, Quiescent Current
Hiccup Mode Overcurrent Protection
Overvoltage Transition Protection
Thermal Shutdown (TSD) and
Adjustable Frequency: 50 kHz ~ 1.5 MHz
Current Mode Control
Monotonic Startup into Pre-Biased Outputs
TPS54335ADDAR Step-Down Converter Applications
Power Bus Supply
Digital TVs
Set-Top Box
Battery Chargers
Smart Meters
CPE
DLP Projectors
Industrial and Car Audio Power
LCD Display