- Efficient sleep mode
- 40 μA typical IQ in sleep mode
- 10μA typical IQ in shutdown mode
- 3.0V minimum input voltage
- 4.0V to 18V continuous input range
- 2.0% reference accuracy
- Cycle-by-cycle current limit
- Adjustable frequency (from 150 kHz to 500 kHz)
- Synchronize to an external clock
- Power good flag
- Mandatory PWM function
- Adjustable soft-start
- Packaged with TSSOP-16 exposed pads
- Thermal shutdown
illustrate
The LM26001B is a switching regulator designed for high efficiency requirements in standby mode. The device features low-current sleep mode to maintain light load conditions and current-mode control to precisely regulate efficiency over a wide input voltage range. Quiescent current drops to 10μA in typical shutdown mode and less than 40μA in sleep mode. Forced PWM mode can also disable sleep mode.
The LM26001B can supply up to 1.5A of continuous load current with a fixed current limit through an internal N-channel switch. The device features a wide input voltage range of 4.0V to 18V and can operate during low-line transients with an input voltage of 3V.
The operating frequency is adjustable from a single resistor from 150 kHz to 500 kHz and can be synchronized to an external clock.
Other features include a good power supply, adjustable soft-start, enable pins, input undervoltage protection, and an internal bootstrap diode to reduce component count.
apply
- Automotive telematics
- Navigation system
- In instrumentation
- Battery-powered applications
- The standby power is home gateway/set-top box
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