5.6V Maximum Output, 3A Valley Current, 1MHz Synchronous Boost with Auto Bypass Function
![]()
- Parameters
- Features
- Description
| Part number | SY20489CUMC |
|---|
| Vin (min) (V) | 2.5 |
|---|
| Vin (max) (V) | 5.5 |
|---|
| Current limit (A) | 3 |
|---|
| Switching frequency (min)(kHz) | 1000 |
|---|
| Switching frequency (max)(kHz) | 1000 |
|---|
| Vout (min) (V) | 2.5 |
|---|
| Vout (max) (V) | 5.6 |
|---|
| Vref accuracy (±%) | 1.5 |
|---|
| Vout accuracy(±%) | |
|---|
| Duty cycle (max)(%) | 90 |
|---|
| Iq (typ) (uA) | 8 |
|---|
| Features | Bypass mode |
|---|
| Package | CSP1.54×0.9-6 |
|---|
| Operating temperature range(°C) | -40 to 125 |
|---|
| Functional safety category | |
|---|
- 2.5V Minimum Input Voltage
- Adjustable Output Voltage from 2.5V to 5.6V
- Min 3A Valley Current Limit
- Capable for Seamless Transition between Boost and Bypass Mode
- Load Disconnect During Shutdown
- Low RDS(ON) (Main Switch/Synchronous Switch) at 5.0V Output: 70mΩ/100mΩ
- Output OVP Protection
- RoHS Compliant and Halogen Free
- Compact package CSP1.54×0.9-6
The SY20489C is a high efficiency synchronous, step-up Boost converter designed for one-cell Li-Ion or Li-polymer, or a two to three-cell alkaline Ni-Cd or Ni-MH battery powered applications. It can convert down to 2.5V input voltage and up to 5.6V output voltage. It adopts NMOS for the main switch and PMOS for the synchronous switch.
The SY20489C can disconnect the output from input during the shutdown mode. When input voltage exceeds the regulated output voltage, the SY20489C enters bypass mode automatically.
Evaluation Board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY20489CUMC_1 is intended for evaluating a is a high efficiency, synchronous, step-up boost converter SY20489C. It can disconnect the output from input during the shutdown mode. When input voltage exceeds the regulated output voltage, SY20489C enters bypass mode automatically.
Similar Products
SY21218LABC
High Efficiency 1MHz, 2A Step Up Regulator
SY20466QMC
1.8V Minimum Input and 5. 5V Maximum Output 6A Peak Current Synchronous Boost with Output Disconnect
SY21306RAC
High Efficiency, 16V, 10A Synchronous Step Up Regulator
