TPS54291PWPR
Conv DC-DC 4.5V to 18V Step Down Dual-Out 0.8V to 15.3V 2.5A/1.5A 16-Pin HTSSOP EP T/R
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Part Number : TPS54291PWPR
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Package/Case : HTSSOP-16
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Brands : Texas Instruments
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Components Categories : Switching Voltage Regulators
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Datesheet : TPS54291PWPR DataSheet (PDF)
Overview of TPS54291PWPR
The TPS54290, TPS54291, and TPS54292 devices are dual-output, fully synchronous buck converters capable of supporting applications with a minimal number of external components. It operates from a 4.5-V to 18-V input supply voltage, and supports output voltages as low as 0.8 V and as high as 90% of the input voltage.
Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. Channel 1 can provide up to 1.5 A of continuous current. Meanwhile, Channel 2 supports up to 2.5 A.
Current mode control simplifies the compensation. The external compensation adds flexibility for the user to choose different type of output capacitors.
180° out-of-phase operation reduces the ripple current through the input capacitor, providing the benefit of reducing input capacitance, alleviating EMI and increasing capacitor life.
Key Features
- 4.5-V to 18-V Input Range
- Output Voltage Range 0.8 V to DMAX × VIN
- Fully Integrated Dual Buck: 1.5 A and 2.5 A
- Three Fixed Switching Frequency Versions:
- TPS54290: 300 kHz
- TPS54291: 600 kHz
- TPS54292: 1.2 MHz
- Integrated UVLO
- 0.8 VREF With 1% Accuracy (0°C to 85°C)
- Internal Soft Start:
- TPS54290: 5.2 ms
- TPS54291: 2.6 ms
- TPS54292: 1.3 ms
- Dual PWM Outputs 180° Out-of-Phase
- Dedicated Enable for Each Channel
- Current Mode Control for Simplified Compensation
- External Compensation
- Pulse-by-Pulse Overcurrent Protection, 2.2-A and 3.8-A Overcurrent Limit
- Integrated Bootstrap Switch
- Thermal Shutdown Protection at 145°C
- 16-Pin PowerPAD™ HTSSOP Package
- APPLICATIONS
- Set-Top Boxes
- Digital TVs
- Power for DSP
- Consumer Electronics
All other trademarks are the property of their respective owners
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Vin (min) (V) | 4.5 | Vin (max) (V) | 18 |
Vout (min) (V) | 0.8 | Vout (max) (V) | 15.3 |
Iout (max) (A) | 2.5 | Iq (typ) (mA) | 1.8 |
Switching frequency (min) (kHz) | 600 | Switching frequency (max) (kHz) | 600 |
Features | Enable, Phase Interleaving, Synchronous Rectification | Operating temperature range (°C) | -40 to 145 |
Rating | Catalog | Regulated outputs (#) | 2 |
Control mode | current mode | Duty cycle (max) (%) | 85 |
Type | Converter |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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