0
ACTIVE
Rating |
Catalog |
Topology |
Buck, Flybuck |
Iout (max) (A) |
0.3 |
Vin (max) (V) |
115 |
Vin (min) (V) |
6 |
Vout (max) (V) |
48 |
Vout (min) (V) |
1.2 |
Switch current limit (typ) (A) |
0.3 |
Features |
Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable |
Control mode |
Constant on-time (COT) |
Operating temperature range (°C) |
-55 to 150 |
Iq (typ) (A) |
0.00001 |
Duty cycle (max) (%) |
99 |
TI functional safety category |
Functional Safety-Capable |
HSOIC (DDA)-8-29.4 mm² 4.9 x 6
The LM5168E is an extended temperature range, (–55°C to +150°C) synchronous buck converter designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and design cost. The LM5168E operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for wide input supply range industrial and high cell count battery pack applications.
With integrated high-side and low-side power MOSFETs, the LM5168E delivers up to 0.3A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. The LM5168E is available in the auto mode version, which enables ultra-low IQ and diode emulation mode operation for high light-load efficiency.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
