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| Part Number | LM3643YFFR | LM3644YFFR | LM3648YFFR | LM3643AYFFR |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Active | Active |
| Type | DC DC Regulator | DC DC Regulator | DC DC Regulator | DC DC Regulator |
| Topology | Step-Up (Boost) | Step-Up (Boost) | Step-Up (Boost) | Step-Up (Boost) |
| Internal Switch(s) | Yes | Yes | Yes | Yes |
| Number of Outputs | 2 | 2 | 1 | 2 |
| Voltage - Supply (Min) | 2.5V | 2.5V | 2.5V | 2.5V |
| Voltage - Supply (Max) | 5.5V | 5.5V | 5.5V | 5.5V |
| Voltage - Output | - | - | - | - |
| Current - Output / Channel | 750mA | 1.5A | 1.5A (Flash) | 1.9A (Switch) |
| Frequency | 2MHz, 4MHz | 2MHz, 4MHz | 4MHz | 4MHz |
| Dimming | I²C | I²C | - | I²C |
| Applications | Camera Flash | Camera Flash | Camera Flash | Camera Flash |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 12-UFBGA, DSBGA | 12-UFBGA, DSBGA | 12-UFBGA, DSBGA | 12-UFBGA, DSBGA |
| Supplier Device Package | 12-DSBGA | 12-DSBGA | 12-DSBGA | 12-DSBGA |
