The TPS51225/B/C is a cost-effective, dualsynchronous buck controller targeted for notebook system-power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The 260-kHz VCLK output can be used to drive an external charge pump, generating gate drive voltage for the load switches without reducing the main converter efficiency.
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APPLICATIONS
•2 Input Voltage Range: 5.5 V to 24 V
• Notebook Computers
• Output Voltages: 5 V and 3.3 V (Adjustable Range ±10%)
• Built-in, 100-mA, 5-V and 3.3-V LDOs
• Clock Output for Charge-Pump
• ±1% Reference Accuracy
• Adaptive On-time D-CAP™ Mode Control
Architecture with 300kHz/355kHz Frequency Setting
• Auto-skip Light Load Operation (TPS51225/C)
• OOA Light Load Operation (TPS51225B)
• Internal 0.8-ms Voltage Servo Soft-Start
• Low-Side RDS(on) Current Sensing Scheme with 4500 ppm/°C Temperature Coefficient
• Built-in Output Discharge Function
• Separate Enable Input for Switc.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | TPS51225 |
Texas Instruments |
Step-Down Controller | |
2 | TPS51225B |
Texas Instruments |
Step-Down Controller | |
3 | TPS51220 |
Texas Instruments |
Notebook System Power Controller | |
4 | TPS51220A |
Texas Instruments |
Notebook System Power Controller | |
5 | TPS51220A-Q1 |
Texas Instruments |
Notebook System Power Controller | |
6 | TPS51221 |
Texas Instruments |
Notebook System Power Controller | |
7 | TPS51222 |
Texas Instruments |
Notebook System Power Controller | |
8 | TPS5120 |
Texas Instruments |
Two-Phase Synchronous Buck DC/DC Controller | |
9 | TPS5120-EP |
Texas Instruments |
Two-Phase Synchronous Buck DC/DC Controller | |
10 | TPS5120-Q1 |
Texas Instruments |
Two-Phase Synchronous Buck DC/DC Controller | |
11 | TPS51200 |
Texas Instruments |
Sink and Source DDR Termination Regulator | |
12 | TPS51200-Q1 |
Texas Instruments |
Sink and Source DDR Termination Regulator |