The LM5009MMX/NOPB buck switching regulator has all the features needed to implement a low cost and efficient buck regulator. The device is capable of driving 150mA of load current from a 9.5V to 95V input source. The switching frequency can exceed 600kHz, depending on the input and output voltages. The output voltage can be set from 2.5V to 85V. This high voltage regulator contains an N-channel buck switch and an internal startup regulator. The device is easy to implement and is available in 8-lead VSSOP and thermally enhanced 8-lead WSON packages. The regulator is based on a control scheme with on-time inversely proportional to VIN. With this feature, the device's operating frequency remains relatively constant as the load and input voltage vary. The control scheme does not require any loop compensation and enables ultra-fast transient response. The device implements a smart current limit with forced off time inversely proportional to VOUT. This scheme ensures short-circuit control while providing less foldback. Additional features include thermal shutdown, VCC undervoltage lockout, gate drive undervoltage lockout and maximum duty cycle limiter.

Product Specifications:

Product Category: Switching Regulators

RoHS: Details

Installation style: SMD/SMT

Package/Case: VSSOP-8

Topology: Buck

Output voltage: 2.5 V to 85 V

Output current: 150 mA

Number of outputs: 1 Output

Input voltage (min): 9.5 V

Input voltage (max): 95 V

Switching frequency: 600 kHz

Minimum operating temperature: - 40 C

Maximum operating temperature: + 125 C

Series: LM5009

Development Kit: LM5009EVAL/NOPB

Height: 0.86 mm

Input Voltage: 9.5 V to 95 V

Length: 3 mm

Operating Supply Current: 485 uA

Product Type: Switching Voltage Regulators

Shutdown: Shutdown

Subcategory: PMIC - Power Management ICs

Supply Voltage - Min: 9.5 V

Type: Step Down

Width: 3 mm

Unit weight: 140 mg