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Key Specs Summary(10)
- function
- Buck
- Number Of OutputsVerified
- 4
- Operating Temperature
- -40℃~+125℃
- Operating Voltage
- 1.7 to 5.5V
- Output CurrentEnriched
- 800mA
- Output VoltageEnriched
- 0.8 to 3.8V
- package
- LFCSP-24(4x4)
- Package Industry NameEnriched
- LFCSP
- Pin CountEnriched
- 24
- Frequency Switching
- 3MHz
Datasheet Extracted
Facts extracted directly from the datasheet (sourced)Pin Configuration · 24-lead LFCSP · 24 pins
| # | Name | Type | Function |
|---|---|---|---|
| 1 | FB4 | input | LDO2 Feedback Input |
| 2 | EN4 | input | LDO2 Enable Pin |
| 3 | VIN2 | power in | BUCK2 Input Supply (2.3 V to 5.5 V) |
| 4 | SW2 | output | BUCK2 Switching Node |
| 5 | PGND2 | power in | Dedicated Power Ground for BUCK2 |
| 6 | NC | no connect | No Connect |
| 7 | EN2 | input | BUCK2 Enable Pin |
| 8 | FB2 | input | BUCK2 Feedback Input |
| 9 | VOUT2 | output | BUCK2 Output Voltage Sensing Input |
| 10 | VOUT1 | output | BUCK1 Output Voltage Sensing Input |
| 11 | FB1 | input | BUCK1 Feedback Input |
| 12 | EN1 | input | BUCK1 Enable Pin |
| 13 | MODE | input | BUCK1/BUCK2 Operating Mode |
| 14 | PGND1 | power in | Dedicated Power Ground for BUCK1 |
| 15 | SW1 | output | BUCK1 Switching Node |
| 16 | VIN1 | power in | BUCK1 Input Supply (2.3 V to 5.5 V) |
| 17 | AVIN | power in | Analog Input Supply (2.3 V to 5.5 V) |
| 18 | AGND | power in | Analog Ground |
| 19 | FB3 | input | LDO1 Feedback Input |
| 20 | VOUT3 | output | LDO1 Output Voltage |
| 21 | VIN3 | power in | LDO1 Input Supply (1.7 V to 5.5 V) |
| 22 | EN3 | input | LDO1 Enable Pin |
| 23 | VIN4 | power in | LDO2 Input Supply (1.7 V to 5.5 V) |
| 24 | VOUT4 | output | LDO2 Output Voltage |
Absolute Maximum Ratings
| AVIN to AGND | -0.3 to 6V | |
| Storage Temperature Range | -65 to 150°C | |
| Operating Junction Temperature Range | -40 to 125°C |
Recommended Operating
| Main input voltage range | 2.3 to 5.5V | |
| LDO input supply voltage | 1.7 to 5.5V |
Thermal
- theta ja
- 35
- theta jc
- 3
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