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Overview
| Topology | Boost Converter |
| Input voltage | 2.8-36 V |
| Output 1 | 36 V |
| IC revision | 0.2 |
Description
XR4981A is a high efficiency synchronous boost controller that converts from 2.8V~36V input range and up to 36Voutput voltage with two outside N-channel MOSFETs for the synchronous switches.The XR4981A includes adjustable current limit, adjustable soft-start, adjustable compensation net and thermal shutdown preventing damage in the event of an output overload.For different application we can select suitable compensation net、current limit soft start and select suitable MOSFET toobtain a high efficiency
Features
- 2.8V~36V input voltage range
- Adjustable output voltage from 5V to 36V
- 1.21V VFB reference voltage
- Adjustable current limit
- Adjustable soft-start
- Adjustable compensation net
- Input under voltage lockout
- 400KHz fixed switching frequency
- Thermal shutdown
- QFN3x3-16 Package Rohs Compliant and Halogen Free
Typical applications
- 5V/9V/12V BUS Power Supply / Power Amplify Device
- Type C USB Device
- Power Bank
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | RDC max. (mΩ) | LR (µH) | RDC typ. (mΩ) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744311220 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | 2.2 | 10.2 | 5.6 | 13 | 11.4 | 52 | Superflux | 12.54 | 1.75 | – | SMT | ||
 | 7443330220 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCC SMT High Current Cube Inductor | 2.2 | 17.4 | 22.5 | 25.6 | – | 80 | Ferrite | 4.8 | 2.1 | 4.6 | SMT | ||
 | 74439358022 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-XHMI SMT Power Inductor | 2.2 | 21.85 | 12.55 | 26.45 | 3.7 | 33 | – | 4.07 | – | 3.7 | SMT | ||
 | 74437349022 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-LHMI SMT Power Inductor | 2.2 | 9.9 | 10.5 | 19.1 | – | 30 | – | 12 | – | 11.2 | SMT | ||
| 74437368022 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-LHMI SMT Power Inductor | 2.2 | 14.3 | 18.1 | 38.7 | – | 27 | – | 7 | – | 6.5 | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 744311220 | SPEC | |
| 7443330220 | SPEC | |
| 74439358022 | SPEC | |
| 74437349022 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | |
| 74437368022 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | RDC max. (mΩ) | LR (µH) | RDC typ. (mΩ) | Mount | Samples |
|---|
