High Accuracy 2.5A Low-Voltage AOT Synchronous Buck Regulator
Description
The KTB8316/KTB8311 is a precision adaptive-on-time (AOT) step-down (buck) switching regulator. The device has class-leading accuracy, fast transient response and high efficiency. Additional features include over current, over/under voltage and thermal protections.
The AOT control along with a thermally enhanced PwrCSP™ package provides a best in class solution with reduced size external components. The step-down buck regulator operates over a user set 0.3V to 3.3V1 output range.
Switching frequency options of 1MHz, 2MHz and 4MHz are available with Forced-PWM or Auto-skip mode at light loads.
The KTB8316/KTB8311 is available in RoHS and Green compliant PwrCSP™ HP-WLCSP-6 Package.
1. Refer to Ordering Information for specific product output ranges.
Part Number Options
| Part Number | Factory Options | ||
| FSW | Default VOUT | Output Voltage range | |
| KTB8316EEAA-AA-TA* | 1MHz | 0.6V | 0.3V to 1.65V |
| KTB8316EEAA-BD-TA | 2MHz | 1.2V | 0.6V to 1.8V |
| KTB8311EEAB-BT-TA* | 2MHz | 2.2V | 0.5V to 3.3V |
| KTB8316EEAA-CJ-TA | 4MHz | 1.2V | 1.0V to 3.3V |
*Please contact Kinetic Technologies Sales for availability
Features
- Operating Range
- 2.5 to 5.5V Input Voltage Range
- Output voltage options from 0.3V to 3.3V1
- Up to 2.5A Output Current
- Adaptive On-Time Control
- Fast and accurate transient response
- Seamless transitions between Auto-skip and PWM operation
- Optimized for smallest solution size and external components
- Integrated High-Side / Low-Side FETs
- ±0.75% Output Voltage Accuracy
- Peak Efficiency up to 90% for VOUT = 1.8V at 4MHz
- 39µA quiescent supply current
- Switching frequency options 1MHz, 2MHz and 4MHz
- Forced-PWM or Auto-Skip Modes
- Over-Current and Short-Circuit protection
- UVLO and Thermal Shutdown Protected
- Active high Enable pin compatible with 1.2V logic
- Active Output Discharge in shutdown mode
- -40°C to 85°C Operating Temperature Range
- PwrCSP™ HP-WLCSP-6 1.464mm x 1.064mm
1. Refer to Ordering Information for specific product output ranges.
Applications
- Smartphones, Mobile Internet Devices, IoT
- Tablets, Notebooks
- Wearable and portable electronic devices
- Digital still cameras (DSC), Drones
- Gaming Consoles and Accessories
Packaging Information
| Package | Dimensions | Package Code |
| HP-WLCSP-6 | 1.064mm x 1.464mm x 0.460mm | EAA |
| HP-WLCSP-6 | 1.064mm x 1.464mm x 0.460mm | EAB |
Technical Documentation
| Description | Documents | Type |
|---|---|---|
| Package Outline Drawing | HP-WLCSP-6 EAA POD | |
| Package Outline Drawing | HP-WLCSP-6 EAB POD | |
| Datasheet | KTB8316-KTB8311-04f |
Purchase
| Purchase Options |
|---|
| Buy from Digi-Key |
| Buy from Mouser |