Datasheet ADP7112 (Analog Devices) - 6

ADP7112 Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS BALL A1 INDICATOR 1 2 A VIN VOUT B SENSE/ SS ADJ C EN GND
003 08- 125
ADP7112 TOP VIEW (BALL SIDE DOWN) Not to Scale
Figure 3. Pin Configuration
Table 5. Pin Function Descriptions Pin Mnemonic Description
A1 VIN Regulator Input Supply. Bypass VIN to GND with a 2.2 μF or greater capacitor. B1 SS Soft Start. An external capacitor connected to this pin determines the soft start time. Leave this pin open for a typical 380 μs start-up time. Do not ground this pin. C1 EN The enable pin controls the operation of the LDO. Drive EN high to turn on the regulator. Drive EN low to turn off the regulator. For automatic startup, connect EN to VIN. A2 VOUT Regulated Output Voltage. Bypass VOUT to GND with a 2.2 μF or greater capacitor. B2 SENSE/ADJ Sense Input (SENSE). Connect to load. Adjustable Model (ADJ). The adjustable model has a fixed output set to 1.2 V. The output can be set to a voltage higher than 1.2 V by connecting an external resistor divider to the ADJ pin. C2 GND Ground. Rev. D | Page 6 of 21 Document Outline Features Applications Typical Application Circuits General Description Revision History Specifications Input and Output Capacitance, Recommended Specifications Absolute Maximum Ratings Thermal Data Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Applications Information Capacitor Selection Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties Programable Precision Enable Soft Start Noise Reduction of the ADP7112 in Adjustable Mode Current-Limit and Thermal Overload Protection Effect of Noise Reduction on Start-Up Time Thermal Considerations PCB Layout Considerations Outline Dimensions Ordering Guide