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Analog Devices LTC7103-1
105V, 2.3A Low EMI Synchronous Step-Down Regulator with Fast Current Programming
Overview
| Topology | Buck Converter |
| Input voltage | 4.4-105 V |
| Switching frequency | 200-2000 kHz |
| Output 1 | 2.3 A |
Description
The LTC7103-1 is a high efficiency, monolithic synchro-nous step-down DC/DC converter utilizing a constant frequency, average current mode control architecture. It operates from an input voltage range of 4.4V to 105V and provides an adjustable regulated output voltage from 1V to VIN while delivering up to 2.3A of output current.
Features
- Wide VIN Range: 4.4V to 105V (110V Abs Max)
- Ultralow EMI/EMC Emissions: CISPR 25 Compliant
- 2μA IQ When Regulating 48VIN to 3.3VOUT
- Fast and Accurate Output Current Programming and Monitoring with No External RSENSE
- Brick Wall Current Limit
- Low Minimum On-Time: 40ns
- Wide VOUT Range: 1V to VIN
- PassThru™/100% Duty Cycle Capable
- Programmable Fixed Frequency: 200kHz to 2MHz
- Eight, Pin-Selectable Fixed (1.2V to 15V) or Adjustable Output Voltages
- Selectable Continuous, Pulse-Skipping, or Low Ripple Burst Mode® Operation at Light Loads
- PLL Synchronization to External Clock
- EXTVCC LDO Powers Chip from VOUT = 3.3V to 40V
- OPTI-LOOP® or Fixed Internal Compensation
- Input and Output Overvoltage Protection
- Thermally Enhanced (5mm × 6mm) QFN Package
- AEC-Q100 Qualification in Process
Typical applications
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Size | Version | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | Material | IR,40K (A) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744771112 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD SMT Power Inductor | 12 | 7.4 | 4.9 | 26 | 19.7 | 1260 | Standard | 4.9 | 6.4 | – | – | 4.5 | ||
 | 7443551181 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | 18 | 7.4 | – | 24200 | 16 | 1365 | SMT | 3.5 | 7.5 | 22 | WE-PERM | – | ||
| 7447715330 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD SMT Power Inductor | 33 | 3.65 | 2.5 | 85 | 13 | 1245 | Standard | 2.5 | 3 | – | – | 2.3 | ||
| 7447709470 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD SMT Power Inductor | 47 | 4.9 | – | 60 | 6.5 | 1210 | Standard | 4.5 | 5.5 | – | – | 3.8 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 744771112 | SPEC | |
| 7443551181 | SPEC | |
| 7447715330 | SPEC | |
| 7447709470 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Size | Version | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | Material | IR,40K (A) | Samples |
|---|
