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Numéro de référence | SC21150 | ||
Description | Tiny 1.2A Synchronous Buck Regulator | ||
Fabricant | Semtech | ||
Logo | |||
1 Page
POWER MANAGEMENT
Features
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
SC21150
Tiny 1.2A Synchronous
Buck Regulator
Description
The SC21150 is an ultra high efficiency 1.2A DC/DC buck
regulator available in a tiny CSP package. These features
make the SC21150 family perfect for small form factor
portable applications where long battery life is essential.
SC21150 is an Adaptive On-Time 4MHz switching regula-
tor 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.
The SC21150 is highly configurable with a wide range of
factory options including internal Soft Start time, fixed or
adjustable output voltage, automatic output discharge,
and a Forced PWM input.
The SC21150 is offered in an ultra small WLCSP 6-Bump
0.75mm x1.11mm package with a bump pitch of 0.35mm.
The SC21150 operating temperature range is -40C to
+85C.
Applications
Automotive
Smart Phones
Wearable Electronics
Tablet PCs
GPS devices
Battery powered equipment
Portable devices
Typical Application Circuit
Adjustable Output Voltage
2.3V-5.5V Supply
VIN LX
4.7µF SC21150
0.47µH
1.2A
Output
10µF
FPWM
FPWM
FB
EN EN GND
Rev 2.0
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Pages | Pages 20 | ||
Télécharger | [ SC21150 ] |
No | Description détaillée | Fabricant |
SC21150 | Tiny 1.2A Synchronous Buck Regulator | Semtech |
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