0
In Production
Current Limit / Short Circuit Protection |
Yes |
Max Duty Cycle (%) |
0.99 |
Enable Pin |
Yes |
External Clock Sync |
Yes |
Input UVLO Typ (V) |
2.8 |
Internal Compensation |
No |
Internal Voltage Bias |
No |
Iq Off (µA) |
2.4 |
Input Voltage Max |
5.5 |
Output Voltage Max |
0 |
Input Voltage Min |
3 |
Output Voltage Min |
0 |
Operating Supply Current (mA) |
3.5 |
PFM, Discontinuous, Hyperlight load, or Skip Mode |
No |
Package |
16/3x3 QFN |
Power Good Signal |
No |
Soft Start |
0 |
Supported Outputs |
1 |
Supported Topologies |
Flyback, Boost, SEPIC, Cuk |
Typical Tolerance (%) |
±3 |
MCP1633 is a Fixed Frequency Peak Current Mode PWM Controller and can be used as a standalone LED driver.
Input
Voltage: 3.0V – 5.5V
Input
Quiescent Current: 3.5mA typical
Oscillator
Frequency: 200kHz – 2.2MHz
External
Sync. Frequency Range: 0.1MHz – 2.5MHz
Internal
Driver RDSON P-Channel: 5Ω max.
Internal
Driver RDSON N-Channel: 5Ω max.
PWM
DIMM Driver RDSON P-Channel: 100Ω max.
PWM
DIMM Driver RDSON N-Channel: 100Ω max.
UVLO
Threshold: 3.0V max. with 100mV hysteresis
OVP
Default Threshold: 1.23V
Thermal
Shutdown Threshold: 1600C
with 200C hysteresis
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