LM51501QURUMRQ1 is an automatic boost controller with a wide input voltage range. The device can be used to maintain stable output voltage by using vehicle battery or backup battery during vehicle startup.

LM51501-QRUMRQ1 can program the switching frequency of LM51501-Q1 in the range of 220kHz to 2.3MHz through a resistor. Fast switching frequency (≥ 2.2MHz) can reduce amplitude modulation band interference to a greater extent, and support the realization of small solution size and fast transient response.

LM51501QURUMRQ1 operates in low IQ standby mode when the input or output voltage is higher than the preset standby threshold, and automatically wakes up when the output voltage falls below the preset wake-up threshold.

The device can enter or exit the low IQ standby mode to extend the battery life under light load. A single resistor programs the target output stable voltage and configuration. Other features include low shutdown current, boost status indicator, adjustable cycle-by-cycle current limit and thermal shutdown. When the device is not in boost operation, the status indicator can be used to control the circuit to bypass the diode, thus reducing power dissipation. In the emergency call mode, the device can be used to control the disconnect switch and protect the backup battery.

Product parameters:

Product type: switch controller

RoHS: details

Topology: Boost

Number of outputs: 1 Output

Switching frequency: 220 kHz to 2.3 MHz

Duty cycle - maximum: 93%

Input voltage: 1.5 V to 42 V

Output voltage: 6 V to 11.5 V

Output current: 15 A

Minimum operating temperature: - 40 C

Maximum operating temperature:+150 C

Installation style: SMD/SMT

Package/box: WQFN-16

Package: Reel

Encapsulation: Cut Tape

Development kit: LM5150RUMEVM, LM5150RUMHDEVM

Insulation: Non-Isolated

Humidity sensitivity: Yes

Working power supply current: 30 uA

Product: Automotive Controllers

Product type: Switching Controllers

Series: LM51501-Q1

Subcategory: PMIC - Power Management ICs