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SY8121B 1.2MHz Synchronous Step Down Regulator

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Description

Application Note: SY8121B High Efficiency Fast Response, 2A, 18V Input 1.2MHz Synchronous Step Down Regulator General .
SY8121B develops high efficiency synchronous stepdown DC-DC converter capable of delivering 2A load current.

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Datasheet Specifications

Part number
SY8121B
Manufacturer
Silergy
File Size
2.74 MB
Datasheet
SY8121B-Silergy.pdf
Description
1.2MHz Synchronous Step Down Regulator

Features

* Low RDS(ON) for internal switches (top/bottom):170/160 mΩ
* 4.5-18V input voltage range
* 2A load current capability
* Instant PWM architecture to achieve fast transient responses
* Internal softstart limits the inrush current
* 2% 0.6V reference

Applications

* Set Top Box
* Portable TV
* Access Point Router
* DSL Modem
* LCD TV Typical Applications Efficiency (%) Figure 1. Schematic Diagram Figure 2. Efficiency Figure AN_SY8121B Rev.0.9 Silergy Corp. Confidential-prepared for Internal Use Only 1 Pinout (top

SY8121B Distributors

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1.2MHz Synchronous Step Down Regulator Silergy
Silergy SY8121B-like datasheet