High Efficiency, 60V Input, 3.5A Asynchronous Step Down Regulator
![]()
- Parameters
- Features
- Description
| Part number |
SQ27693FCP |
| Channel(#) |
1 |
| Vin (min) (V) |
4.5 |
| Vin (max) (V) |
60 |
| Switching frequency (min)(kHz) |
100 |
| Switching frequency (max)(kHz) |
2500 |
| Vout (min) (V) |
0.8 |
| Vout (max) (V) |
24 |
| Iout (max) (A) |
3.5 |
| Vout2 (min)(V) |
|
| Vout2 (max )(V) |
|
| Iout2 (max)(A) |
|
| Vref accuracy (±%) |
1(over temperature) |
| Vout accuracy(±%) |
|
| Control mode |
Clock+Ipeak |
| Duty cycle (max)(%) |
80 |
| Operation mode |
Auto PFM |
| Iq (typ) (uA) |
152 |
| Features |
Asynchronous |
| Package |
SO8E |
| Operating temperature range(°C) |
-40 to 125 |
| Functional safety category |
|
· Wide Input Voltage Range: 4.5V ~ 60V
· Output Current Capability: 3.5A
· Low RDS(ON) for Internal N-channel Power FET(TOP): 95mΩ
· Accurate Feedback Set Point: 0.8V ±1% from -40℃ to 125℃
· 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 SQ27693 develops a high efficiency, peak current mode controlled, asynchronous step-down DC/DC converter capable of delivering 3.5A output current. The SQ27693 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.
The switching frequency is adjustable from 100kHz to 2.5MHz using an external resistor. And the SQ27693 features cycle by cycle peak current limit, UVLO, UVP, OVP and OTP protection.
The SQ27693 is available in SO8E package.
Evaluation Board
-
Photo of evaluation board
-
Photo of evaluation board
-
Photo of evaluation board
-
Photo of evaluation board
The DB_SQ27693FCP_1 is intended for evaluating fast response, 3.5A, 60V Asynchronous Buck regulator. It features cycle by cycle peak current limit protection, and adjustable switching frequency.
