IC-Hersteller Analog Devices

IC-Hersteller (98)

Analog Devices LT3074 | Demoboard EVAL-LT3074

Evaluating the LT3074 3A, Ultralow Noise, High PSRR, 45mV Dropout Ultrafast Linear Regulator with PMBus

Details

TopologieAbwärtswandler
Eingangsspannung0.6-5.5 V
Ausgang 11.2 V / 3 A

Beschreibung

The EVAL-LT3074-AZ evaluation board features the LT3074, a 3A, ultralow noise, high power-supply rejection ratio (PSRR), 45mV dropout ultrafast linear regulator with PMBus capability. The input voltage (VIN) range for the VIN power is from 0.6V to 5.5V. The maximum output current is 3A. The output voltage is precisely programmed to 1.20V by two 1% resistors in series. The EVAL-LT3074-AZ requires a BIAS voltage (VBIAS) that is at least 1.2V higher than VOUT and is between 2.375V and 5.5V. There is a jumper (JP4), which gives an option to connect the BIAS pin to either an external bias voltage or the internal 3.3V logic power from the PMBus interface (discussed later in this section). The EVAL-LT3074-AZ can operate standalone without PMBus programming.

Eigenschaften

  • Input voltage range: 0.6V to 5.5V
  • BIAS voltage range: 2.375V to 5.5V
  • Maximum output current: 3A
  • I2C/PMBus communication
  • Jumper selects bias mode of either external bias voltage or 3.3V internal logic power from the PMBus interface
  • Output voltage is precisely programmed to 1.20V by two 1%m resistors in series
  • BNC connectors for noise and PSRR measurement
  • Component placeholder can connect the PGFB pin directly to BIASAF to keep PG high
  • Operates standalone without PMBus programming
  • Jumper turns regulator on or off
  • Jumper enables or disables the internal clocks of LT3074 for noise performance verification
  • Jumper and resistor combinations select the serial bus interface address
  • Stacking connectors allow PMBus communication to multiple EVAL-LT3074-AZ
  • 6-pin 0.1 inch pitch connector implements Pmod Type 6 I2C
  • LED indication of POWER ON, POWER GOOD and PMBus ALERT
  • Terminals provide output current and output regulation status monitoring
  • The VIOC pin of the LT3074 manages power dissipation and PSRR
  • Banana jacks minimize VIN and VOUT connection voltage drops
  • VO+, VO−, and VI+ terminals for regulation and dropout monitoring
  • Component footprint for an SMA connector that allows a shielded VIN power connection
  • 22-lead (3mm x 4mm) LQFN package

Typische Anwendungen

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieL
(mm)
f
(mm)
λDom typ.
(nm)
FarbeλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chiptechnologie50% typ.
(°)
Pins
(pcs)
ReihenH
(mm)
GenderTypIR
(A)
Verpackung Muster
150060SS75000SPEC
26 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 630 Superrot 645 60 1.9 AlInGaP 140 0.7 Tape and Reel
150060GS75000SPEC
26 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 525 Grün 515 430 3.2 InGaN 140 0.7 Tape and Reel
62000311121SPEC
6 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WR-PHD 2.00 mm THT Pin Header 6 3 Single Pin Header Gerade 2 Beutel
702935000SPEC
3 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WA-SNSR Self-Retaining Spacer 12.7 4.8
61300611121SPEC
6 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WR-PHD 2.54 mm THT Pin Header 15.24 6 Single Pin Header Gerade 3 Beutel
60800213421SPEC
3 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WR-PHD 2.00 mm Jumper with Test Point 2 Jumper 3 Beutel
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieL
(mm)
f
(mm)
λDom typ.
(nm)
FarbeλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chiptechnologie50% typ.
(°)
Pins
(pcs)
ReihenH
(mm)
GenderTypIR
(A)
Verpackung Muster