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Texas Instruments TPS62916E
17V VIN, 6A low-noise low-ripple buck converter with extended temperature range
Overview
| Topology | Buck Converter |
| Input voltage | 3-17 V |
| Switching frequency | 1000-2200 kHz |
| Output 1 | 1.2 V / 6 A |
| IC revision | A |
Description
The TPS62916E device is a highly efficient, low noise, and low ripple current mode synchronous buck converter. The device is 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.
Features
- Low output 1/f noise < 20µVRMS(100Hz to 100kHz)
- Low output voltage ripple < 10µVRMS after ferritebead
- High PSRR of > 65dB (up to 100kHz)
- 2.2MHz, 1.4MHz, or 1.0MHz fixed frequency peak current mode control
- Synchronizable 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 range
- 0.8V to 5.5V output voltage range
- 25mΩ/7mΩ RDSon
- Output voltage accuracy of ±1% over temperature
- Precise enable input allows
- User-defined undervoltage lockout
- Exact sequencing
- Adjustable soft start
- Power-good output
- Output discharge (optional)
- –55°C to 150°C junction temperature range
- mm × 3.0mm QFN with 0.5mm pitch
- Create a custom design using the TPS62916E with the WEBENCH® Power Designer
Typical applications
- Aerospace and defense (radar, avionics), Test and measurement
- Medical
- Telecom infrastructure
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR(A) | Z @ 1 GHz(Ω) | H(mm) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-MAPI SMT Power Inductor, 1 µH, 10.1 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Inductance1 µH | Performance Rated Current10.1 A | Saturation Current @ 30%11.5 A | DC Resistance12 mΩ | Self Resonant Frequency55 MHz | Operating Voltage80 V | MountSMT | – | – | – | Rated Current7.2 A | – | Height2 mm | – | ||||
| WE-MAPI SMT Power Inductor, 1 µH, 10.25 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Inductance1 µH | Performance Rated Current10.25 A | Saturation Current @ 30%12.5 A | DC Resistance11.6 mΩ | Self Resonant Frequency59 MHz | Operating Voltage80 V | MountSMT | – | – | – | Rated Current7.4 A | – | Height3.1 mm | – | ||||
 | WE-MPSB EMI Multilayer Power Suppression Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | DC Resistance2.5 mΩ | – | – | MountSMT | Impedance @ 100 MHz8 Ω | Maximum Impedance25 Ω | Maximum Impedance1930 MHz | Rated Current9.5 A | Impedance @ 1 GHz24 Ω | Height0.8 mm | TypeHigh Current | ||||
| WE-MPSB EMI Multilayer Power Suppression Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | DC Resistance1 mΩ | – | – | MountSMT | Impedance @ 100 MHz10 Ω | Maximum Impedance41 Ω | Maximum Impedance2178 MHz | Rated Current10.5 A | Impedance @ 1 GHz28 Ω | Height1.1 mm | TypeHigh Current |