概览

The SC21150 is an ultra high efficiency 1.2A DC/DC buck regulator available in a tiny CSP package. These features make the SC211 50 family perfect for small form factor portable applications where long battery life is essential. SC21150 is an Adaptive On-Time 4MHz switching regulator at full load conditions. Under light load conditions it seamlessly transitions into Power Save Mode and reduces switching frequency thus saving energy. High switching frequency operation allows the use of a very small 0.47μH inductor along with small input and output capacitors to minimize overall circuit size. A Forced PWM input allows continuous switching under all load conditions.

封装

0.75mm x 1.11mm, 6-Bump WLCSP Package, tape and reel only

订购代码

SC21150ACSTRT - WEEE and RoHS compliant and halogen-free, 5,000 pcs.
SC21150EVB - Evaluation Board

PB Free/ROHS

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功能

Input voltage range — 2.3V to 5.5V
1.2A continuous output current
4MHz switching frequency
Adjustable Output Voltage
- 0.8V to VIN
1% output voltage accuracy
Adaptive On-Time architecture
Up to 100% duty cycle
Up to 96% peak efficiency
Power Save mode for efficient light load operation
>90% efficiency 30mA to 75mA
1μA shutdown current
23μA quiescent current
Pre-bias startup protection
Internal or optional external Soft Start
Device options (contact Semtech Marketing)
- Automatic output discharge
- Power Good indicator
- Internal Soft Start
- External Programmable Soft Start
- Forced PWM Operation Input
0.75mm x 1.11mm, 6-Bump WLCSP Package
WEEE and RoHS compliant and halogen-free