TC2185

Features:

• Low Supply Current: 80 µA (Max)
• Low Dropout Voltage: 140 mV (Typ) @ 150 mA
• High Output Voltage Accuracy: ±0.4% (Typ)
• Standard or Custom Output Voltages
• Power-Saving Shutdown Mode
• Reference Bypass Input for Ultra Low-Noise Operation
• Fast Shutdown Response Time: 60 µsec (Typ)
• Over-Current Protection
• Space-Saving 5-Pin SOT-23A Package
• Pin Compatible Upgrades for Bipolar Regulators
• Wide Operating Temperature Range: -40 to +125




Application

• Battery Operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Cellular / GSM / PHS Phones
• Linear Post-Regulator for SMPS
• Pagers




Pinout






Specifications

Input Voltage ................................................................. 6.5V
Output Voltage .................................... ( 0.3) to (V_IN + 0.3)
Operating Temperature ......................... 40 < T_J < 125
Storage Temperature ................................ 65 to +150
Maximum Voltage on Any Pin ................ V_IN +0.3V to 0.3V
Maximum Junction Temperature .................................. 150

† Notice: Stresses above those listed under "Maximum Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

Parameter NameValueMax Input Voltage6Output Voltage (v)1.8, 2.5, 2.7, 2.8, 2.85, 3.0, 3.3Typical Active Current (A)55Typical Dropout Voltage @ Max. lout (mV)140Typical Output Voltage Accuracy (%)0.4Output Capacitor TypeCeramic/Aluminum/Tantalum

Parameter Name	Value
Max Input Voltage	6
Output Voltage (v)	1.8, 2.5, 2.7, 2.8, 2.85, 3.0, 3.3
Typical Active Current (A)	55
Typical Dropout Voltage @ Max. lout (mV)	140
Typical Output Voltage Accuracy (%)	0.4
Output Capacitor Type	Ceramic/Aluminum/Tantalum

Description

The TC2014, TC2015 and TC2185 are high-accuracy (typically ±0.4%) CMOS upgrades for bipolar low dropout regulators, such as the LP2980. Total supply current is typically 55 µA; 20 to 60 times lower than in bipolar regulators.

The key features of the device include low noise operation (plus bypass reference), low dropout voltage typically 45 mV for the TC2014, 90 mV for the TC2015, and 140 mV for the TC2185, at full load and fast response to step changes in load. Supply current is reduced to 0.5 µA (max) and V_OUT falls to zero when the shutdown input is low. The devices also incorporate over-current protection.

The TC2014, TC2015 and TC2185 are stable with an output capacitor of 1 µF and have a maximum output current of 50 mA, 100 mA and 150 mA, respectively. For higher output versions, see the TC1107 (DS21356), TC1108 (DS21357) and TC1173 (DS21362) (I_OUT = 300 mA) datasheets.

The TC2014, TC2015, and TC2185 are high accuracy (typically ±0.4%) CMOS upgrades for older (bipolar) low dropout regulators such as the LP2980. Total supply current is typically 55A (20 to 60 times lower than in bipolar regulators!). The devices' key features include ultra low noise operation (plus bypass reference), very low dropout voltage - typically 45 mV (TC2014); 90 mV (TC2015); and 140 mV (TC2185) at full load - and fast response to step changes in load. Supply current is reduced to 0.5 A (max) and VOUT falls to zero when the shutdown input is low. The devices also incorporate over-current protection. The TC2014, TC2015 and TC2185 are stable with an output capacitor of only 1F and have a maximum output current of 50 mA, 100 mA, and 150 mA, respectively. For higher output versions, see the TC1107, TC1108 and TC1173 (IOUT = 300 mA) data sheets.