Topology | Buck Converter |
Input voltage | 7-42 V |
Switching frequency | 100-2500 kHz |
Output 1 | 5 V / 3.5 A |
The TPS54340 is a 42 V, 3.5 A, step down regulator with an integrated high side MOSFET. The device survives load dump pulses up to 45 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load supply current to 146 μA. Shutdown supply current is reduced to 1 μA when the enable pin is pulled low.
Undervoltage lockout is internally set at 4.3 V but can be increased using the enable pin. The output voltage start up ramp is internally controlled to provide a controlled start up and eliminate overshoot.
A wide switching frequency range allows either efficiency or external component size to be optimized. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.
The TPS54340 is available in an 8-pin thermally enhanced HSOIC PowerPAD™ package.
Remarks:
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | ISAT (A) | fres (MHz) | Mount | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | Material | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (mΩ) | Type | IR (A) | Z @ 1 GHz (Ω) | H (mm) | Samples | |
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744314150 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | 1.5 | – | 110 | SMT | 16.4 | 4 | 11 | 4.3 | Superflux | – | – | – | – | 4.73 | – | – | – | 4.8 | |||
7447798111 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PDF SMT Power Inductor | 11 | 5.3 | 25 | SMT | – | – | – | – | – | – | – | – | – | 15.8 | – | 6.9 | – | 6.1 | |||
742792031 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | SMT | – | – | – | – | – | 300 | 350 | 200 MHz | 3000 | 50 | High Current | 2 | 97 | 0.9 | |||
74279224401 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | SMT | – | – | – | – | – | 400 | 460 | 110 MHz | 4500 | 20 | High Current | 4.5 | 108 | 3.2 |
Order Code | Datasheet | Simulation | |
---|---|---|---|
744314150 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | ||
7447798111 | SPEC | ||
742792031 | SPEC | ||
74279224401 | SPEC |
Samples |
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Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | ISAT (A) | fres (MHz) | Mount | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | Material | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (mΩ) | Type | IR (A) | Z @ 1 GHz (Ω) | H (mm) | Samples |
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