High Efficiency, 60V Input, 5A Asynchronous Step Down Regulator
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- Parameters
- Features
- Description
| Part number |
SY21189FCP |
| Channel(#) |
1 |
| Vin (min) (V) |
4.5 |
| Vin (max) (V) |
60 |
| Switching frequency (min)(kHz) |
450 |
| Switching frequency (max)(kHz) |
550 |
| Vout (min) (V) |
0.8 |
| Vout (max) (V) |
40 |
| Iout (max) (A) |
5 |
| Vout2 (min)(V) |
|
| Vout2 (max )(V) |
|
| Iout2 (max)(A) |
|
| Vref accuracy (±%) |
±1% |
| Vout accuracy(±%) |
±2% |
| Control mode |
Peak Current Mode |
| Duty cycle (max)(%) |
95 |
| Operation mode |
|
| Iq (typ) (uA) |
152 |
| Features |
Adjustable Switching Frequency range: 100kHz~2500kHz |
| Package |
SO8E |
| Operating temperature range(°C) |
-40°C to 125°C |
| Functional safety category |
|
- Wide Input Voltage Range: 4.5V ~ 60V
- Output Current Capability: 5A
- Low RDS(ON) for Internal N-Channel Power MOSFET (TOP): 95mΩ
- Accurate Feedback Set Point: 0.8V ±1% from -40°C to 125°C
- Adjustable Switching Frequency: 100kHz to 2500kHz
- High Efficiency at Light Loads with Pulse Skipping Mode
- Cycle by Cycle Peak Current Limit Protection
- Automatic Recovery for UVLO, OVP and OTP Conditions
- Hiccup Mode for UVP Condition
- Compact Package: SO8E
The SY21189FCP develops a high efficiency, peak current mode controlled, asynchronous step-down DC/DC converter capable of delivering 5A output current. The SY21189FCP operates over a wide input voltage range from 4.5V to 60V and integrates a main switch with very low RDS(ON) to minimize the conduction loss.
