IP Catalog > Power Management > TS2795
TS2795
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Features |
Functional Block Diagram |
General Description
The TS2795 IP block is a PFM-PWM, voltage mode, synchronous switched-mode buck regulator designed to provide a fixed output voltage of 1.2v or 1.8v. Includes a soft-start operational mode and can be designed to operate out-of-phase when multiple buck regulators are implemented on the same Agile ASIC™. Full step-down or buck regulation is achieved by using internal FET’s, a high-side PFET and low-side NFET for each converter.
PFM-PWM transitioning can be configured to be automatic through either a pin configuration detection or through the internal SPI Register Control set.
PFM-PWM transitioning can be configured to be automatic through either a pin configuration detection or through the internal SPI Register Control set.
Simplified Internal Block Diagram
To maintain small output ripple voltages while using small value, and size, inductors and capacitors in the output filter, the buck regulators switch at 2.1898MHz nominally. This frequency is created by dividing down an internally generated oscillator as part of the overall Agile ASIC™ integration. MG_VDD_1.8 should use L = 3.3µH and C = 10µF, while VDD_1.2 should use L = 2.2µH and Cload = 10µF. The absolute capacitor range for MG_VDD_1.8 is 2.2µF to 15µF, while NVDD_1.2 is 3µF to 20µF. A capacitor of at least 10µF should be placed as close to VDD_3.3 supply inputs as possible.
Key Performance Parameters
Parameter | Notes/Conditions | min | typ | max | notes |
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Output Voltage | Load current = 150mA | 1.751 | 1.8 | 1.849 | V |
Output Current | 150 | mA | |||
Efficiency | Efficiency: Load curr = 100mA, Vin = 3.3V | 90 | % | ||
Efficiency: Load curr = 50mA, Vin = 3.3V | 87 | % | |||
Efficiency: Load curr = 25mA, Vin = 3.3V | 80 | % |
Parameter | Notes/Conditions | min | typ | max | notes |
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Output Voltage | Load current = 500mA | 1.164 | 1.2 | 1.236 | V |
Output Current | 500 | mA | |||
Efficiency | Efficiency: Load curr = 400mA, Vin = 3.3V | 86 | % | ||
Efficiency: Load curr = 300mA, Vin = 3.3V | 88 | % | |||
Efficiency: Load curr = 150mA, Vin = 3.3V | 89 | % |
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Triad products are not warranted or authorized for use as critical components in medical, life-saving, or life-sustaining applications, or other applications where a failure would reasonably be expected to cause severe personal injury or death.
Triad products are not warranted or authorized for use as critical components in medical, life-saving, or life-sustaining applications, or other applications where a failure would reasonably be expected to cause severe personal injury or death.