封裝資訊
| 封裝 | 針腳 VQFN (RGZ) | 48 |
| 操作溫度範圍 (°C) -40 to 85 |
| 包裝數量 | 運送業者 2,500 | LARGE T&R |
TPS65400 的特色
- Efficiency up to 95% for each switching regulator
- Switching regulator specifications:
- Input voltage range: 4.5 to 18 V
- VOUT range: 0.6 V-90%VIN
- SW1, SW2 IOUT: 4-A max
- SW3, SW4 IOUT: 2-A max
- Prebias start-up algorithm minimizes voltage dip during start-up
- Internal undervoltage lockout (UVLO), overcurrent protection (OCP), overvoltage protection (OVP), and overtemperature protection (OTP)
- AECQ-100 grade 1 option
- Thermally enhanced 7-mm × 7-mm 48-pin, 0.5-mm pitch VQFN package
- Pin accessible features:
- Adjustable VOUT with external feedback resistors
- Sequencing control through precision enable pins for each switcher
- Resistor adjustable PWM switching frequency from 275 kHz to 2.2 MHz
- Clock sync input and clock output
- Soft-start delay through external capacitor
- Current sharing between SW1 and SW2 and between SW3 and SW4 allows support of higher current needs if required
- PMBus runtime control and status
- Runtime voltage positioning through adjustment of VREF
- Enable and disable of each switcher
- Fault and status monitoring
- User-configurable PMBus/I2C options,
saved in EEPROM
- Power supply turn-on and turn-off sequencing
- Sequencing can be based on fixed time delays or PGOOD dependence
- Initial voltage positioning through VREF configuration
- PWM frequency adjustment for each switcher
- Individual PWM phase alignment for each switcher to minimize ripple and capacitor size
- Adjustable current limit on each regulator enables size and cost optimization of inductors
- Soft-start time
TPS65400 的說明
The TPS65400 is an integrated PMU optimized for applications requiring small form factor and high power conversion efficiency, enabling small space-constrained equipment with high ambient operating temperature without cooling. The device provides high-power efficiency at a system level by enabling a single stage conversion from an intermediate distribution bus with an optimized combination of regulators.