The LM2696 is a pulse width modulation (PWM) buck regulator capable of delivering up to 3A into a load. The control loop utilizes a constant on-time control scheme with input voltage feed forward. This provides a topology that has excellent transient response without the need for compensation. The input voltage feed forward ensures that a constant switching frequency is maintained across the entire VIN range.
The LM2696 is capable of switching frequencies in the range of 100 kHz to 500 kHz. Combined with an integrated 130 mΩ high side NMOS switch the LM2696 can utilize small sized external components and provide high efficiency. An internal soft-start and power-good flag are also provided to allow for simple sequencing between multiple regulators.
The LM2696 is available with an adjustable output in an exposed pad HTSSOP-16 package.
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| Vin (min) (V) | 4.5 |
| Vin (max) (V) | 24 |
| Vout (min) (V) | 1.254 |
| Vout (max) (V) | 20 |
| Iout (max) (A) | 3 |
| Iq (typ) (mA) | 1 |
| Switching frequency (min) (kHz) | 100 |
| Switching frequency (max) (kHz) | 500 |
| Features | Power good |
| Operating temperature range (°C) | -40 to 125 |
| Rating | Catalog |
| Regulated outputs (#) | 1 |
| Control mode | Constant on-time (COT) |
| Duty cycle (max) (%) | 70 |
| Type | Converter |
| HTSSOP (PWP) | 16 | 32 mm² 5 x 6.4 |
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