ZHCSNK8 March 2021 TPS62810M , TPS62811M , TPS62812M , TPS62813M
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
- 8 Parameter Measurement Information
- 9 Detailed Description
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13Device and Documentation Support
- 14Mechanical, Packaging, and Orderable Information
10.3.2 Synchronizing to an External Clock
The TPS6281xM device can be externally synchronized by applying an external clock on the MODE/SYNC pin. There is no need for any additional circuitry as long as the input signal meets the requirements given in the electrical specifications. The clock can be applied or removed during operation, letting the user switch from an externally defined fixed frequency to power save mode or to an internally fixed-frequency operation. The value of the RCF resistor must be chosen so that the internally defined frequency and the externally applied frequency are close to each other. This ensures a smooth transition from internal to external frequency and vice versa.
| VIN = 5 V | RCF = 8.06 kΩ | IOUT = 0.1 A |
| VOUT = 1.8 V | fEXT = 2.5 MHz |
| VIN = 5 V | RCF = 8.06 kΩ | IOUT = 1 A |
| VOUT = 1.8 V | fEXT = 2.5 MHz |