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Overview
| Topology | Buck Converter |
| Input voltage | 2.25-5.5 V |
| Switching frequency | 1000-3000 kHz |
| Output 1 | 5.5 V / 1 A |
| IC revision | A |
Description
The LTC®3374A is a multioutput power supply IC consistingof eight synchronous 1A buck converters, all powered fromindependent 2.25V to 5.5V input supplies. An upgradedpin-compatible version of the LTC3374, the LTC3374A,has higher efficiency, improved output voltage accuracyand an added overvoltage (OV) indicator.
Features
8-Channel 1A Independent Step-Down DC/DCsMaster-Slave Configurable for Up to 4A of Output Current with a Single InductorIndependent VIN Supplies for Each DC/DC (2.25V to 5.5V)All DC/DCs Have 0.8V to VIN Output Range±1% VFB Accuracy, for Buck 1 (1A to 4A)±1% PGOOD AccuracyPrecision Enable Pin Thresholds for Autonomous Sequencing1MHz to 3MHz Programmable/Synchronizable Oscillator Frequency (2MHz Default)Die Temperature Monitor OutputThermally Enhanced 38-Lead 5mm × 7mm QFN and TSSOP PackagesPin-Compatible with LTC3374
Typical applications
- Industrial/Automotive/Communications
- General Purpose Multichannel Power Supplies
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 | ISAT (A) | RDC max. (mΩ) | Material | Version | ISAT,10% (A) | RDC (mΩ) | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744383560033 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | 0.33 | 14.95 | 16.7 | 6 | 115 | 80 | SMT | 12.4 | 7.2 | – | SMT | 7.95 | – | 2 | – | 2 | – | – | 9.6 | – | ||
 | 744383360068 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | 0.68 | 6.75 | 8.1 | 22 | 85 | 80 | SMT | 6.2 | 27 | – | SMT | 4.1 | – | 2 | – | 2 | – | – | 4.5 | – | ||
| 744383560068 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | 0.68 | 13.15 | 12.7 | 7.5 | 75 | 80 | SMT | 9.4 | 9 | – | SMT | 5.8 | – | 2 | – | 2 | – | – | 8.2 | – | ||
 | 744316100 | 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 | 14.8 | 11.5 | – | 158 | – | SMT | 11.5 | 5.225 | Superflux | SMT | 5.5 | 4.75 | 2 | – | 4 | – | – | 11.5 | – | ||
| 74438336015 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | 1.5 | 5.35 | 5.85 | 33 | 51 | 80 | SMT | 4.5 | 39 | – | SMT | 2.95 | – | 2 | – | 2 | – | – | 3.7 | – | ||
| 74438356022 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | 2.2 | 6.2 | 7.9 | 29 | 34 | 80 | SMT | 6.2 | 35 | – | SMT | 4.05 | – | 2 | – | 2 | – | – | 4.7 | – | ||
 | 74408943047 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-SPC SMT Power Inductor | 4.7 | – | – | 45 | 44 | – | SMT | 3.2 | 52 | – | SMT | – | – | 2 | – | 3.8 | – | – | 2.2 | – | ||
 | 60800213421 | SPEC | – | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm Jumper with Test Point | – | – | – | – | – | – | – | – | – | – | – | – | – | 2 | – | – | Jumper | – | 3 | Bag | |
 | 62000311121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Pin Header | – | – | – | – | – | – | THT | – | – | – | – | – | – | 3 | Single | – | Pin Header | Straight | 2 | Bag |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 744383560033 | SPEC | |
| 744383360068 | SPEC | |
| 744383560068 | SPEC | |
| 744316100 | 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. | |
| 74438336015 | SPEC | |
| 74438356022 | SPEC | |
| 74408943047 | SPEC | |
| 60800213421 | SPEC | – |
| 62000311121 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | fres (MHz) | VOP (V) | Mount | ISAT (A) | RDC max. (mΩ) | Material | Version | ISAT,10% (A) | RDC (mΩ) | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
|---|