IC-Hersteller Texas Instruments

IC-Hersteller (99)

Texas Instruments TPS62916E

17V VIN, 6A low-noise low-ripple buck converter with extended temperature range

Details

TopologieAbwärtswandler
Eingangsspannung3-17 V
Schaltfrequenz1000-2200 kHz
Ausgang 11.2 V / 6 A
IC-RevisionA

Beschreibung

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. Lowfrequency 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

Eigenschaften

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 peakcurrent mode control
  • Synchronizable with external clock (optional)
  • Integrated loop compensation supports ferritebead for second stage L-C filter with 30dBattenuation (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
    1. mm × 3.0mm QFN with 0.5mm pitch
  • Create a custom design using the TPS62916Ewith the WEBENCH® Power Designer

Typische Anwendungen

  • Aerospace and defense (radar, avionics)
  • Medical
  • Telecom infrastructure
  • Test and measurement

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieL
(µH)
IRP,40K
(A)
ISAT,30%
(A)
RDC typ.
(mΩ)
fres
(MHz)
VOP
(V)
MontageartZ @ 100 MHz
(Ω)
Zmax
(Ω)
Testbedingung ZmaxIR
(A)
Z @ 1 GHz
(Ω)
H
(mm)
Typ Muster
74438356010SPEC
10 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-MAPI SMT-Speicherdrossel 1 10.1 11.5 12 55 80 SMT 7.2 2
74438357010SPEC
10 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-MAPI SMT-Speicherdrossel 1 10.25 12.5 11.6 59 80 SMT 7.4 3.1
7427922808SPEC
9 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-MPSB EMI Multilayer Power Suppression Bead 2.5 SMT 8 25 1930 MHz 9.5 24 0.8 High Current
74279221100SPEC
9 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-MPSB EMI Multilayer Power Suppression Bead 1 SMT 10 41 2178 MHz 10.5 28 1.1 High Current
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieL
(µH)
IRP,40K
(A)
ISAT,30%
(A)
RDC typ.
(mΩ)
fres
(MHz)
VOP
(V)
MontageartZ @ 100 MHz
(Ω)
Zmax
(Ω)
Testbedingung ZmaxIR
(A)
Z @ 1 GHz
(Ω)
H
(mm)
Typ Muster