TPS62916 Series

17-VIN, 6-A low-noise low-ripple buck converter with integrated ferrite-bead filter&nb

Catalog

17-VIN, 6-A low-noise low-ripple buck converter with integrated ferrite-bead filter&nb

Part	Package / Case	Output Configuration	Voltage - Input (Min) [Min]	Output Type	Synchronous Rectifier	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Min/Fixed)	Frequency - Switching	Topology	Voltage - Input (Max) [Max]	Current - Output	Function	Supplier Device Package	Voltage - Output (Max) [Max]	Mounting Type	Number of Outputs
Texas Instruments TPS62916RPYR	14-VFQFN	Positive	3 V	Adjustable		150 °C	-40 °C	0.8 V	1 MHz 1.4 MHz 2.2 MHz	Buck	17 V	6 A	Step-Down	14-VQFN-HR (2.5x3)	5.5 V	Surface Mount	1

Catalog

17-VIN, 6-A low-noise low-ripple buck converter with integrated ferrite-bead filter&nb

Key Features

• Low output 1/f noise < 20µVRMS(100Hz to 100kHz)Low output voltage ripple < 10µVRMS after ferrite beadHigh PSRR of > 65dB (up to 100kHz)2.2MHz, 1.4MHz, or 1.0MHz fixed frequency peak current mode controlSynchronizable with external clock (optional)Integrated loop compensation supports ferrite bead for second stage L-C filter with 30dB attenuation (optional)Spread spectrum modulation (optional)3.0V to 17V input voltage range0.8V to 5.5V output voltage range25mΩ/7mΩ RDSonOutput voltage accuracy of ±1% over temperaturePrecise enable input allowsUser-defined undervoltage lockoutExact sequencingAdjustable soft startPower-good outputOutput discharge (optional)–40°C to 150°C junction temperature range2. mm × 3.0mm QFN with 0.5mm pitchCreate a custom design using the TPS6291x with theWEBENCH Power DesignerLow output 1/f noise < 20µVRMS(100Hz to 100kHz)Low output voltage ripple < 10µVRMS after ferrite beadHigh PSRR of > 65dB (up to 100kHz)2.2MHz, 1.4MHz, or 1.0MHz fixed frequency peak current mode controlSynchronizable with external clock (optional)Integrated loop compensation supports ferrite bead for second stage L-C filter with 30dB attenuation (optional)Spread spectrum modulation (optional)3.0V to 17V input voltage range0.8V to 5.5V output voltage range25mΩ/7mΩ RDSonOutput voltage accuracy of ±1% over temperaturePrecise enable input allowsUser-defined undervoltage lockoutExact sequencingAdjustable soft startPower-good outputOutput discharge (optional)–40°C to 150°C junction temperature range2. mm × 3.0mm QFN with 0.5mm pitchCreate a custom design using the TPS6291x with theWEBENCH Power Designer

Description

The TPS6291x devices are a family of high-efficiency, low noise, and low ripple current mode synchronous buck converters. The devices are designed for noise sensitive applications that normally use an LDO for post regulation such as high-speed ADCs, clock and jitter cleaner, serializer, de-serializer, and radar applications. To reduce the output voltage ripple, the device loop compensation is designed to operate with an optional second-stage ferrite bead L-C filter. Low-frequency noise levels, similar to a low-noise LDO, are further achieved by filtering the internal voltage reference with a capacitor connected to the NR/SS pin. Combined, these features allow for an output voltage ripple below 10µVRMS. The device operates at a fixed switching frequency of 2.2MHz, 1.4MHz, or 1MHz, and can be synchronized to an external clock. An optional spread spectrum modulation scheme spreads the DC/DC switching frequency over a wider span, which lowers the mixing spurs. The TPS6291x devices are a family of high-efficiency, low noise, and low ripple current mode synchronous buck converters. The devices are designed for noise sensitive applications that normally use an LDO for post regulation such as high-speed ADCs, clock and jitter cleaner, serializer, de-serializer, and radar applications. To reduce the output voltage ripple, the device loop compensation is designed to operate with an optional second-stage ferrite bead L-C filter. Low-frequency noise levels, similar to a low-noise LDO, are further achieved by filtering the internal voltage reference with a capacitor connected to the NR/SS pin. Combined, these features allow for an output voltage ripple below 10µVRMS. The device operates at a fixed switching frequency of 2.2MHz, 1.4MHz, or 1MHz, and can be synchronized to an external clock. An optional spread spectrum modulation scheme spreads the DC/DC switching frequency over a wider span, which lowers the mixing spurs.