ZMDI Releases New Power Management ICs
Dresden-based semiconductor company ZMDI which specialises in enabling energy-efficient solutions, has released the ZSPM4121 and ZSPM4141.
As a global supplier of analogue and mixed-signal solutions for automotive, industrial, medical, information technology and consumer applications, ZMDI is introducing this family of ultra-low power, low drop-out (LDO) regulators and under-voltage battery protection switches. The ZSPM4141 has a standby power consumption of 20nA while the ZSPM4121 uses 70nA.
The ZSPM4121 protects batteries from destructive discharge by connecting or disconnecting the battery from the load based on a set threshold voltage. Even during the off-mode, charger current can be delivered to the battery through the ZSPM4121's internal Schottky diode. In this off-mode state, the ZSPM4121 will only draw 100pA standby current (Iqq-off).
With its low on-mode standby current of only 70nA, the ZSPM4121 is suited for voltage monitoring in conventional or solar trickle-charging applications. The open-drain pull-down power-good-not (NPG ) pin allows connecting an LED for power-good indication. The factory-programmable threshold voltage from 1.2V to 4.2V (in 100mV steps) gives the ZSPM4121 a wide application range. The integrated over-current protection (3A) eliminates external components, minimizing the application footprint and engineering effort.
The ZSPM4141 is an ultra-low power LDO capable of driving up to 200mA while consuming just 20nA in standby and 100pA in power-down mode. Its power consumption is up to 100 times lower than conventional LDOs. The ZSPM4141 is a perfect match for any battery-operated application, extending battery life to its maximum. A wide Vin range of 2.5V to 5.5V and voltage output of 1.2V to 4.2V (factory-programmable in 100mV steps) provide maximum application flexibility.
"ZMDI is a market leader developing technologies that enable our customers to create systems that further optimize energy efficiency, system operation and battery life. The ZSPM4121 and ZSPM4141 family of power management ICs truly benefits our customers by offering solutions for applications that require ultra-low power," commented Edward Lam, Vice President of Product Marketing and Business Development at ZMDI.
The ZSPM41x1 series features an under voltage threshold range of 1.2V to 4.2V, which is factory-programmed in 100mV steps. Its temperature (junction) range is -200C to 850C and comes as a 8-L DFN 2x2mm package.
The ZSPM4121 battery-protection under-voltage switch has a Vin of 1.2V to 5.5V and is integrated over-current protection of 3A. The standby current is 70nA in the on-mode and 100pA in the off-mode.
The ZSPM4141 ultra-low power LDO has a Vin of 2.5V to 5.5V and an integrated over-current protection of 250mA. The standby current is 20nA (Iqq), 100pA (Iqq-disable).
ZSPM4121 is priced at $0.75/€ 0.56 @ 1Ku, while the ZSPM4141 costs $0.35/€0.26 @ 1Ku.
