Topologie | Abwärtswandler |
Eingangsspannung | 2.7-5 V |
Ausgang 1 | 0.5 V / 25 A |
The demonstration circuit EVAL-LT7153SP-AZ is a 5V, ±25A high efficiency synchronous step-down second-generation Silent Switcher® with spread spectrum frequency modulation featuring the LT®7153SP. The demo board is designed for 0.5V output from a 2.7V to 5V input, capable of delivering ±25A to the load. The LT7153SP is a compact, ultralow emission, high efficiency, and high speed synchronous monolithic step-down switching regulator. The integrated bypass capacitors optimize all the fast current loops and make it easier to minimize EMI/EMC emissions by reducing layout sensitivity. Selectable spread spectrum mode can further improve EMI/EMC performance. The unique constant frequency, controlled on-time, current mode architecture is ideal for high step-down ratio applications that operate at high frequencies while demanding fast transient response.
Silent Switcher®2 ArchitectureUltralow EMIEliminates PCB Layout SensitivityInternal Bypass Caps Reduce Radiated EMISVIN: 2.7V to 5V; PVIN: 1.5V to 5VVOUT: 0.5V to 0.9∙VINAccurate Reference: 0.5V ±0.8% Over TempIntegrated N-MOSFETs: 1.8mΩ/0.7m&Omega15ns Min On-Time: Low Duty Cycle OperationDifferential VOUT Remote SenseConfigurable Fixed Output OptionsProgrammable Load Line (3 settings)Programmable Current Limit (3 settings)Programmable, Synchronizable: 400kHz to 5MHzUser Selectable Discontinuous Mode® (DCM) or Forced Continuous Mode (FCM) OperationControlled TON, Current Mode: Excellent TransientPower Good status, Output Tracking, Clock-OutSupports Spread Spectrum OperationPolyPhase Operation: 2, 3, 4, 6, 8 or 12 Phases36-Lead (4mm x 7mm) Exposed Back LQFN Package
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Z @ 100 MHz (Ω) | IR (A) | RDC max. (mΩ) | Z @ 25 MHz (Ω) | L (mm) | W (mm) | H (mm) | Version | Pins (pcs) | Reihen | Gender | Typ | Verpackung | Muster | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() | 744316047 | SPEC | 9 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-HCI SMT-Hochstrominduktivität | 0.47 | 19.5 | 8 | 16 | 2.75 | 280 | Superflux | – | – | 3.025 | – | 5.5 | 5.3 | 4 | SMT | 2 | – | – | – | – | ||
![]() | 7427930 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-PBF Flachdraht-Hochstrom SMT-Ferrit | – | – | – | – | – | – | – | 42 | 16 | 0.6 | 28 | 5 | 3 | 2.55 | nicht verklebt | – | – | – | – | – | ||
![]() | 60800213421 | SPEC | – | 3 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WR-PHD 2.00 mm Jumper with Test Point | – | – | – | – | – | – | – | – | 3 | – | – | – | – | – | – | 2 | – | Jumper | – | Beutel | |
![]() | 62000311121 | SPEC | – | 7 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WR-PHD 2.00 mm THT Pin Header | – | – | – | – | – | – | – | – | 2 | – | – | 6 | – | – | – | 3 | Single | Pin Header | Gerade | Beutel |
Artikel Nr. | Datenblatt | Simulation | |
---|---|---|---|
![]() | 744316047 | SPEC | |
![]() | 7427930 | SPEC | |
![]() | 60800213421 | SPEC | – |
![]() | 62000311121 | SPEC | – |
Muster |
---|
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Z @ 100 MHz (Ω) | IR (A) | RDC max. (mΩ) | Z @ 25 MHz (Ω) | L (mm) | W (mm) | H (mm) | Version | Pins (pcs) | Reihen | Gender | Typ | Verpackung | Muster |
---|