| Part Number | UCC35701DTR | UCC3570DTR | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | PMIC - AC DC Converters, Offline Switchers | PMIC - AC DC Converters, Offline Switchers | 
|   |   | |
| Product Status | Active | Obsolete | 
| Output Isolation | Isolated | Isolated | 
| Internal Switch(s) | No | No | 
| Voltage - Breakdown | - | - | 
| Topology | Boost, Buck, Flyback, Forward | Forward | 
| Voltage - Start Up | 13 V | 13 V | 
| Voltage - Supply (Vcc/Vdd) | 9V ~ 15V | 9V ~ 15V | 
| Duty Cycle | 99% | 80% | 
| Frequency - Switching | 700kHz | 500kHz | 
| Power (Watts) | - | - | 
| Fault Protection | Current Limiting | Current Limiting | 
| Control Features | Soft Start, Sync | Frequency Control, Soft Start | 
| Operating Temperature | -55°C ~ 150°C (TJ) | 0°C ~ 70°C (TA) | 
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 
| Supplier Device Package | 14-SOIC | 14-SOIC | 
| Mounting Type | Surface Mount | Surface Mount |