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Overview
| Topology | Boost Converter |
| Input voltage | 6-20 V |
| Output 1 | 0.2 A |
| Output 2 | 3.3 V / 0.8 A |
| Output 3 | 5 V / 0.2 A |
| IC revision | 1 |
Description
DC2246A is a linear regulator featuring the LT®3042EDD,which is a 200mA, ultralow noise, and ultrahigh powersupply rejection ratio (PSRR) RF low dropout (LDO) linearregulator with programmable current limit.DC2246A operates over an input range of 3.8V to 20V.The LT3042 has a maximum output current of 200mA. Itfeatures ultralow noise (0.8µVrms from 10Hz to 100kHz)and very high PSRR (79dB at 1MHz). The power goodfeedback (PGFB) pin voltage is programmable for powergoodthreshold. A currentlimitfunctionisprovided. CurrentmonitoringisalsoachievablebysensingthevoltageofILIM.Built-in protection includes reverse battery protection,reverse current protection, internal current limit withfoldback and thermal limit with hysteresis.The LT3042 data sheet gives a complete description of thedevice, operation and applications information. The datasheet must be read in conjunction with this Demo Manualfor demonstration circuit DC2246A. The LT3042EDD isassembled in a 10-lead (3mm x 3mm) plastic DFN packagewith an exposed pad on the bottom-side of the IC.Proper board layout is essential for maximum thermalperformance and ultrahigh PSRR.Design files for this circuit board are available athttp://www.linear.com/demo/DC2246A
More information
Products
| Order Code | Datasheet | Downloads | Status | Product series | L (mm) | f (mm) | Pins (Value) (pcs) | Rows | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 62000311121 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Pin Header | 6 | – | 3 | Single | Pin Header | Straight | 2 | Bag | |
 | 62000621121 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Dual Pin Header | 6 | – | 6 | Dual | Pin Header | Straight | 2 | Bag | |
 | 702935000 | SPEC | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WA-SNSR Self-Retaining Spacer | 12.7 | 4.8 | – | – | – | – | – | – | |
 | 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 |
| Order Code | Datasheet | |
|---|---|---|
| 62000311121 | SPEC |
| 62000621121 | SPEC |
| 702935000 | SPEC |
| 60800213421 | SPEC |
| Samples |
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| Order Code | Datasheet | Downloads | Status | Product series | L (mm) | f (mm) | Pins (Value) (pcs) | Rows | Gender | Type | IR (A) | Packaging | Samples |
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