ZMDI announced the release of the ZSPM4121 and ZSPM4141 low-power, low-dropout (LDO) regulators and under-voltage battery protection switches.
The ZSPM4121 protects batteries from destructive discharge by connecting or disconnecting the battery from the load based on a set threshold voltage. Even in the off-mode, charger current can be delivered to the battery through the IC’s internal Schottky diode. In this off-mode state, it will only draw 100 pA standby current.
With its low on-mode standby current of only 70 nA, the ZSPM4121 is well 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 1,2 V to 4,2 V (in 100 mV steps) gives the ZSPM4121 a wide application range. The integrated over-current protection (3 A) eliminates external components.
The ZSPM4141 is a low-power LDO capable of driving up to 200 mA while consuming only 20 nA in standby and 100 pA in power-down mode, making it a good match for any battery-operated application. A wide input voltage range of 2,5 V to 5,5 V and voltage output of 1,2 V to 4,2 V (factory programmable in 100 mV steps) provide application flexibility.
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