Product Summary

The C1185 IS is a high accuracy (typically ±0.5%) cmos upgrade for older (bipolar) low dropout regulator (ldo) such as the lp2980. designed specifically for battery-operated systems, the devices cmos construction eliminates wasted ground current, significantly extending battery life. total supply current is typically 50 μa at full load (20 to 60 times lower than in bipolar regulators). It is ideal for: (1)battery-operated systems; (2)portable computers; (3)medical instruments; (4)instrumentation; (5)cellular/gsm/phs phones; (6)linear post-regulator for smps; (7)pagers.

Parametrics

C1185 absolute maximum ratings: (1)input voltage: 6.5v; (2)output voltage: (-0.3v)to (vin + 0.3v); (3)power dissipation: internally limited (note 7); (4)maximum voltage on any pin: vin +0.3v to -0.3v; (5)operating temperature range: -40°c < tj < 125°c; (6)storage temperature: -65°c to +150°c.

Features

C1185 features: (1)low supply current (50 μa, typical); (2)low dropout voltage; (3)choice of 50 ma (tc1014), 100 ma (tc1015)and 150 ma (tc1185)output; (4)high output voltage accuracy; (5)standard or custom output voltages; (6)power-saving shutdown mode; (7)reference bypass input for ultra low-noise operation; (8)overcurrent and overtemperature protection; (9)space-saving 5-pin sot-23 package; (10)pin-compatible upgrades for bipolar regulators; (11)standard output voltage options: 1.8v, 2.5v, 2.6v, 2.7v, 2.8v, 2.85v, 3.0v, 3.3v, 3.6v, 4.0v, 5.0v.

Diagrams

C1185 pin connection