21μA low IQ, 5.5V, 2A, 1.5MHz Synchronous Buck Converter
- Parameters
- Features
- Description
| Part number |
SY20015ART |
| Channel(#) |
|
| Vin (min) (V) |
|
| Vin (max) (V) |
|
| Switching frequency (min)(kHz) |
|
| Switching frequency (max)(kHz) |
|
| Vout (min) (V) |
|
| Vout (max) (V) |
|
| Iout (max) (A) |
|
| Vout2 (min)(V) |
|
| Vout2 (max )(V) |
|
| Iout2 (max)(A) |
|
| Vref accuracy (±%) |
|
| Vout accuracy(±%) |
|
| Control mode |
|
| Duty cycle (max)(%) |
|
| Operation mode |
|
| Iq (typ) (uA) |
|
| Features |
|
| Package |
|
| Operating temperature range(°C) |
|
| Functional safety category |
|
· Low RDS(ON) for Internal MOSFETs: 45mΩ Top, 35mΩ Bottom
· 2.5V ~ 5.5V Input Voltage Range
· Up to 2A Output Current
· Constant On-Time and Ripple-Based Control
· 21μA Quiescent Current
· High 1.5MHz Switching Frequency Minimizes Required External Components
· Internal Soft-Start Limits Inrush Current
· 100% Dropout Operation
· Power Good Indicator
· Output Auto-Discharge Function
· Hiccup Mode for Short Circuit Protection
· RoHS-Compliant and Halogen-Free
· Compact SOT563 Package
The SY80075 high efficiency 1.5MHz synchronous buck converter operates over a wide input voltage range of 2.5V to 5.5V, and can deliver an output current up to 2A. It integrates a top MOSFET and a bottom MOSFET with very low RDS(ON) to minimize conduction loss. The 1.5MHz pseudo-constant switching frequency enables using small external inductor and capacitor values.