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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-24 V |
| Output 1 | 24 V / 9 A |
Description
The NX9548 is buck switching converter in multi chip module designed for step down DC to DC converter in portable applications. It is optimized to convert single supply up to 24V bus voltage to as low as 0.75V output voltage. The output current can be up to 9A.It can be selected to operate in synchronous mode or non-synchronous mode to improve the efficiency at light load. Constant on time control provides fast response, good line regulation and nearly constant frequency under wide voltage input range. Over current protection and FB UVLO followed by latch feature.Other features includes: internal boost schottky diode, 5V gate drive capability, power good indicator, over current protection, over voltage protection and adaptive dead band control. NX9548 is available in 5x5 MCM package.
Features
- Internal Bootstrap Schottky Diode
- Ultrasonic Mode Operation Available
- Bus Voltage Operation From 4.5V to 24V
- Less Than 1uA Shutdown Current with Enable Low
- Excellent Dynamic Response with Constant On Time Control
- Selectable Between Synchronous CCM Mode and Diode Emulation Mode to Improve Efficiency at Light Load
- Programmable Switching Frequency
- Current Limit and FB UVLO with Latch Off
- Over Voltage Protection with Latch Off
Typical applications
- UMPC, Notebook OCs and Desknotes
- On Board DC to DC Such as 12V to 3.3V, 2.5V or 1.8V
- Tablet PCs/Slates/Hand-Held portable Instruments
More information
Products
| Order Code | Datasheet | Simulation | Downloads | 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,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012007061 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 470 pF | ±5% | 50 | 0805 | -55 °C up to +125 °C | 1000 | – | 10 GΩ | NP0 Class I | 2 | 1.25 | 0.8 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012007063 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 1 nF | ±5% | 50 | 0805 | -55 °C up to +125 °C | 1000 | – | 10 GΩ | NP0 Class I | 2 | 1.25 | 0.8 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012207045 | SPEC | 8 files | WCAP-CSGP MLCCs 16 V(DC) | 100 nF | ±10% | 16 | 0805 | -55 °C up to +125 °C | – | 3.5 | 5 GΩ | X7R Class II | 2 | 1.25 | 0.8 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012207072 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 100 nF | ±10% | 25 | 0805 | -55 °C up to +125 °C | – | 3.5 | 5 GΩ | X7R Class II | 2 | 1.25 | 0.8 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012207078 | SPEC | 7 files | WCAP-CSGP MLCCs 25 V(DC) | 1 µF | ±10% | 25 | 0805 | -55 °C up to +125 °C | – | 5 | 0.5 GΩ | X7R Class II | 2 | 1.25 | 1.25 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012207002 | SPEC | 8 files | WCAP-CSGP MLCCs 6.3 V(DC) | 4.7 µF | ±10% | 6.3 | 0805 | -55 °C up to +125 °C | – | 15 | 0.02 GΩ | X7R Class II | 2 | 1.25 | 1.25 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012207026 | SPEC | 8 files | WCAP-CSGP MLCCs 10 V(DC) | 10 µF | ±10% | 10 | 0805 | -55 °C up to +125 °C | – | 10 | 0.01 GΩ | X7R Class II | 2 | 1.25 | 1.25 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012107005 | SPEC | 8 files | WCAP-CSGP MLCCs 6.3 V(DC) | 22 µF | ±20% | 6.3 | 0805 | -55 °C up to +85 °C | – | 10 | 0.005 GΩ | X5R Class II | 2 | 1.25 | 1.25 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012109014 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 22 µF | ±20% | 25 | 1210 | -55 °C up to +85 °C | – | 5 | 0.005 GΩ | X5R Class II | 3.2 | 2.5 | 2.5 | 0.6 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 860020272005 | SPEC | 7 files | WCAP-ATG5 Aluminum Electrolytic Capacitors | 100 µF | ±20% | 10 | – | – | – | 17 | – | – | 11 | – | – | – | Ammopack | – | – | – | – | – | – | – | 2000 | -40 °C up to +105 °C | 105 | 10 | 2 | 5 | ||
 | 744311100 | SPEC | 8 files | WE-HCI SMT Flat Wire High Current Inductor | – | – | – | 7040 | -40 °C up to +150 °C | – | – | – | – | 7 | 6.9 | 3.8 | – | – | 1 | 16.8 | 8 | 19 | 4.6 | 85 | Superflux | – | -40 °C up to +150 °C | – | – | – | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | 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,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | Samples |
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