High Efficiency Fast Response, 3.5A, 40V Input Synchronous Step Down Regulator
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- Parameters
- Features
- Description
| Part number |
SY26335FCA |
| Channel(#) |
1 |
| Vin (min) (V) |
4.2 |
| Vin (max) (V) |
40 |
| Switching frequency (min)(kHz) |
300 |
| Switching frequency (max)(kHz) |
2200 |
| Vout (min) (V) |
0.6 |
| Vout (max) (V) |
5.5 |
| Iout (max) (A) |
3.5 |
| Vout2 (min)(V) |
|
| Vout2 (max )(V) |
|
| Iout2 (max)(A) |
|
| Vref accuracy (±%) |
2(over temperature) |
| Vout accuracy(±%) |
|
| Control mode |
Clock+Ipeak |
| Duty cycle (max)(%) |
90 |
| Operation mode |
Auto PFM |
| Iq (typ) (uA) |
18 |
| Features |
Power good |
| Package |
SO8E |
| Operating temperature range(°C) |
-40 to 125 |
| Functional safety category |
|
- Low RDS(ON) for Internal Switches (Top/Bottom): 115/80mΩ
- 4.2-40V Input Voltage Range
- Internal Compensation
- Internal 1ms Soft-start Limits the Inrush Current
- Adjustable Switching Frequency Range: 300kHz to 2.2MHz
- 3.5A Output Current Capability
- ±2% 0.6V Reference Over -40℃~105℃
- Cycle-by-cycle Peak Current Limitation
- Short Circuit Protection
- Thermal Shutdown and Auto Recovery
- RoHS Compliant and Halogen Free
- Compact Package: SO8E
The SY26335 develops a high efficiency synchronous step-down DC/DC converter capable of delivering 3.5A load current. The SY26335 operates over a wide input voltage range from 4.2V to 40V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.
The SY26335 adopts peak current control scheme. The switching frequency is adjustable from 300kHz to 2.2MHz using an external resistor. The device also features ultra low quiescent operating to achieve high efficiency under light load. And the internal soft-start limits inrush current during power on.
Evaluation Board
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Photo of evaluation board
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Photo of evaluation board
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Photo of evaluation board
The EVB_SY26335FCA is intended for evaluating fast response, 3.5A, 40V
synchronous Buck regulator.
It features cycle-by-cycle peak current limitation, adjustable switching frequency and power good indication.
