TC1187

The TC1070, TC1071, and TC1187 are adjustable LDOs designed to supersede a variety of older (bipolar) voltage regulators. Total supply current is typically 50uA at full load, 20 to 60 times lower than in bipolar regulators! The devices’ key features include ultra low noise operation, very low dropout voltage — typically 85mV (TC1070); 180mV (TC1071); and 270mV (TC1187) at full load, and fast response to step changes in load. Supply current is reduced to 0.5 µA (max) when the shutdown input is low. The devices incorporate both over-temperature and over-current protection. Output voltage is programmed with a simple resistor divider from VOUT to ADJ to GND. The TC1070, TC1071, and TC1187 are stable with an output capacitor of only 1F and have a maximum output current of 50mA, 100mA, and 150mA, respectively. For higher output versions, please see the TC1174 (IOUT = 300mA) data sheet.

Features
  • Very Low Ground Current for Longer Battery Life
  • Adjustable Output Voltage
  • Very Low Dropout Voltage
  • Choice of 50mA, 100mA, 150mA Output (TC1070, TC1071, TC1187, Respectively)
  • Power-Saving Shutdown Mode
  • Over-Current and Over-Temperature Protection
  • Pin Compatible with Bipolar Regulators
Parameter
Parameter Name Value Value
Product Type Single LDOs Single LDOs
# of Out 1 1
IOUT #1
IOUT #2
IOUT #3
IOUT #4
IOUT (mA) 150 150
VIN Min (V) 2.7 2.7
VIN Max (V) 6 6
VOUT (V) 1.23 - 5.5 1.23 - 5.5
Voltage Drop Typ (mV) 270 270
IGND Typ (µA) 50 50
Tol Typ %
PSRR 1 kHz (dB) 64 64
Soft Start Pin
Load Dump
Rev Bat
Reverse Current Protect
Documents
TC1070/1071/1187 Data SheetData Sheets11/18/2010247KB
AN761 - LDO Thermal ConsiderationsAppNote11/12/2002266KB
AN776 - DC Performance Comparisons of CMOS vs Bipolar LDOs When Operating in "Dropout" (Vin = Nominal Vout) Mode (list devices)AppNote11/12/2002229KB
Analog & Interface Guide (Volume 2)Brochures10/11/20051067KB
Quick Guide to Microchip Development ToolsBrochures10/15/201411223KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
TC1187VCT7135SOT-23-40C to +125CT/R0.420.350.320.310.30
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
TC1187VCT7130.0160000.0490005SOT-23-Matte Tine3
TC1187VCT713-VAO0.0160000.0490005SOT-23-Matte Tine3
TC1070/1071/1187 Data Sheet TC1187
AN761 TC2185
AN776 TC2185
Analog & Interface Guide (Volume 2) MCP23S08
Quick Guide to Microchip Development Tools ENC28J60
Analog & Interface Product Selector Guide ENC624J600