Product Summary

The LP2985-28DBVR is a micropower voltage regulator with very low quiescent current (130 μA typical at 1 mA load) and very low dropout voltage (typ. 60 mV at light load and 470 mV at 250 mA load current). The device is ideally suited for battery-powered systems. Furthermore, the quiescent current increases only slightly at dropout, which prolongs battery life. The LP2985-28DBVR retains all the desirable characteristics of the LP2951, but offer increased output current, additional features, and an improved shutdown function. The internal crowbar pulls the output down quickly when the shutdown is activated. The applications of the LP2985-28DBVR include High-efficiency linear regulator, Regulator with under-voltage shutdown, Low dropout battery-powered regulator, Snap-ON/Snap-OFF regulator.

Parametrics

LP2985-28DBVR absolute maximum ratings: (1)Storage Temperature Range: -65℃ ≤ TA ≤ +150℃; (2)Operating Temperature Range: -40℃ ≤ TJ ≤ +125℃; (3)Lead Temp (Soldering, 5 seconds): 260℃; (4)Power Dissipation (Note 2): Internally Limited; (5)Input Supply Voltage: -20V to +30V; (6)Feedback Input Voltage (Note 3): -0.3V to +5V; (7)Comparator Input Voltage (Note 4): -0.3V to +30V; (8)Shutdown Input Voltage (Note 4): -0.3V to +30V; (9)Comparator Output Voltage (Note4): -0.3V to +30V; (10)ESD Rating (Note 15): 2 kV.

Features

LP2985-28DBVR features: (1)Output voltage adjusts from 1.23V to 29V; (2)Guaranteed 250 mA output current; (3)Extremely low quiescent current; (4)Low dropout voltage; (5)Extremely tight line and load regulation; (6)Very low temperature coefficient; (7)Current and thermal limiting; (8)Reverse battery protection; (9)50 mA (typical) output pulldown crowbar; (10)5V and 3.3V versions available.

Diagrams

LP2985-28DBVR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LP2985-28DBVR
LP2985-28DBVR

Texas Instruments

Low Dropout (LDO) Regulators 150-mA Low-Noise 1.5% tolerance

Data Sheet

0-1: $0.34
1-25: $0.26
25-100: $0.23
100-250: $0.20
LP2985-28DBVRE4
LP2985-28DBVRE4

Texas Instruments

Low Dropout (LDO) Regulators 150-mA Low-Noise 1.5% tolerance

Data Sheet

0-1: $0.32
1-25: $0.25
25-100: $0.22
100-250: $0.19
LP2985-28DBVRG4
LP2985-28DBVRG4

Texas Instruments

Low Dropout (LDO) Regulators Sgl Output 150mA Fixed(2.8V) Lo Quies

Data Sheet

0-1: $0.32
1-25: $0.25
25-100: $0.22
100-250: $0.19