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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-18 V |
| Output 1 | 15 V / 1.5 A |
| IC revision | 1.0 |
Description
The LX7104 is a 1.4MHz fixed frequency, current mode, PWM buck (step-down) DC-DC converter, capable of driving a 1.5A load with high efficiency, excellent line and load regulation. The device integrates a N-channel power MOSFET switch with low on-resistance. The converter accepts a wide input voltage range from 4.5V to 18V, and provides an output voltage adjustable typically from 0.81 to 15V.Soft-start is built in, and current mode control provides fast transient response and cycle-by-cycle current limit. Short circuit protection will be triggered when current is over limit and FB is below 0.25V.The LX7104ISF is available in SOT23-6 package.
Features
- Input Supply Range: 4.5V to 18V
- Output Voltage Adjustable from 0.81V to 15V
- Integrated High-Side NMOS Switch
- Current Mode Control
- Output Current: 1.5A
- Fixed 1.4MHz Frequency
- High Efficiency: Up To 92%
- Built-in Soft-start
- Built-in OV, UV & OT Protection
- Cycle-by-cycle Over Current Protection
- Short Circuit Protection
- RoHS Compliant & Halogen Free
Typical applications
- LCD TV’s / Monitor/DPF
- Portable DVD
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | fres (MHz) | VOP (V) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012007009 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | 10 nF | ±5% | 10 | 0805 | -55 °C up to +125 °C | 1000 | – | 10 GΩ | NP0 Class I | 2 | 1.25 | 1.25 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | ||
| 885012207016 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | 100 nF | ±10% | 10 | 0805 | -55 °C up to +125 °C | – | 5 | 5 GΩ | X7R Class II | 2 | 1.25 | 0.8 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | ||
| 885012208069 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | 10 µF | ±10% | 25 | 1206 | -55 °C up to +125 °C | – | 10 | 0.01 GΩ | X7R Class II | 3.2 | 1.6 | 1.6 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | ||
| 885012107005 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 6.3 V(DC) | 22 µF | ±20% | 6.3 | 0805 | -55 °C up to +85 °C | – | 15 | 0.005 GΩ | X5R Class II | 2 | 1.25 | 1.25 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | ||
 | 74438357047 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | – | – | – | 4030 | -40 °C up to +125 °C | – | – | – | – | 4.3 | 4.3 | 3.1 | – | – | 4.7 | 5.1 | 8.2 | 39.9 | 24 | 80 | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012007009 | SPEC | |
| 885012207016 | SPEC | |
| 885012208069 | SPEC | |
| 885012107005 | SPEC | |
| 74438357047 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | fres (MHz) | VOP (V) | Mount | Samples |
|---|