SM8103
Description
The SM8103 is a high efficiency, 500k Hz synchronous step-down DC/DC regulator capable of delivering up to 3A load current. It can operate over a wide input voltage range from 4.2V to 18V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.
The SM8103 adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 500k Hz to minimize the size of the inductor and the capacitor.
Ordering Information
- (-
- )- Temperature Code Pa cka ge Code Optional Spec Code
Ordering Number Package type
Note
SM8103ADC
TSOT23-6
----
Typical Application
CBS 100n F
VIN :4.2~18V
CIN 10u F
L 4.7u H
VOUT: 3.3V
RH 100k
CFF 100p F
RL 22.1k
COUT 10u F
Figure1. Schematic Diagram
Inductor and COUT Selection Table
VOUT
COUT [µF]
[V] [µH] 4.7 10 22
√...
