The ADP2381 is a current mode control, synchronous,
Step-down DC/DC regulator, which integrates a 44 mΩ power MOSFET and a low-side driver to provide a high efficiency solution. The ADP2381 operates from an input voltage of 4.5 V to 20 V and delivers 6 A of output current. The output voltage is adjustable from 0.6 V to 90% of the input voltage. The switching frequency of the ADP2381 can be programmed from 250 kHz to 1.4 MHz, or fixed at 290 kHz or 550 kHz. The synchronization function allows the switching frequency to be synchronized to an external clock to minimize system noise.
External compensation and adjustable soft-start provide design flexibility. The power good output provides simple and reliable power sequencing. Other features include programmable undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown (TSD).
The ADP2381 operates over the junction temperature range of -40°C to +125°C and is available in a 16-lead TSSOP_EP package.
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- Communication infrastructure
- Networks and servers
- Industrial & Instrumentation
- Healthcare
- Intermediate power rail conversion
- DC/DC point-of-load applications
Advantages and features
- Input voltage: 4.5 V to 20 V
- Integrated 44 mΩ high-side MOSFETs
- 0.6 V ±1% reference over temperature
- Continuous output current: 6 A
- Programmable switching frequency: 250 kHz to 1.4 MHz
- Synchronization to external clock: 250 kHz to 1.4 MHz
- 180° inverting synchronization
- Programmable UVLO
- Power good output
- External compensation
- Internal soft-start with externally adjustable options
- Enter the precharge output after startup
- ADIsimPower design tool support
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