Datasheet ADP7182 (Analog Devices) - 9

Data Sheet ADP7182 VOUT 1 6 VIN VOUT 1 6 VIN ADP7182 ADP7182 TOP VIEW NC 2 TOP VIEW 5 GND ADJ 2 5 GND (Not to Scale) (Not to Scale) EXPOSED PAD EN 3 EXPOSED PAD 4 NC EN 3 4 NC NOTES NOTES 1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. 1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. 2. THE EXPOSED PAD ON THE BOTTOM OF THE LFCSP PACKAGE ENHANCES 2. THE EXPOSED PAD ON THE BOTTOM OF THE LFCSP PACKAGE ENHANCES THERMAL PERFORMANCE AND IS ELECTRICALLY CONNECTED TO VIN THERMAL PERFORMANCE AND IS ELECTRICALLY CONNECTED TO VIN INSIDE THE PACKAGE. THE EXPOSED PAD MUST BE CONNECTED TO THE INSIDE THE PACKAGE. THE EXPOSED PAD MUST BE CONNECTED TO THE
6 07
VIN PLANE ON THE BOARD FOR PROPER OPERATION. BECAUSE THIS IS A
1
VIN PLANE ON THE BOARD FOR PROPER OPERATION. BECAUSE THIS IS A
10
NEGATIVE VOLTAGE REGULATOR, VIN IS THE MOST NEGATIVE POTENTIAL NEGATIVE VOLTAGE REGULATOR, VIN IS THE MOST NEGATIVE POTENTIAL
0703-
IN THE CIRCUIT.
1 0703-
IN THE CIRCUIT.
1 Figure 7. 6-Lead LFCSP Pin Configuration, Fixed Output Voltage Figure 8. 6-Lead LFCSP Pin Configuration, Adjustable Output Voltage
Table 7. 6-Lead LFCSP Pin Function Descriptions LFCSP Pin No. Fixed Output Voltage Adjustable Output Voltage Mnemonic Description
1 1 VOUT Regulated Output Voltage. Bypass VOUT to GND with a 2.2 μF or greater capacitor. Not Applicable 2 ADJ Adjustable Input. An external resistor divider sets the output voltage. 3 3 EN Drive EN 2 V above or below ground to enable the regulator, or drive EN to ground to turn off the regulator. For automatic startup, connect EN to VIN. 2, 4 4 NC No Connect. Do not connect to this pin. 5 5 GND Ground. 6 6 VIN Regulator Input Supply. Bypass VIN to GND with a 2.2 μF or greater capacitor. 7 7 EPAD Exposed pad. The exposed pad on the bottom of the LFCSP package enhances thermal performance and is electrically connected to VIN inside the package. The exposed pad must be connected to the VIN plane on the board for proper operation. Because this is a negative voltage regulator, VIN is the most negative potential in the circuit. Rev. M | Page 9 of 32 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUITS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INPUT AND OUTPUT CAPACITANCE, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ADJUSTABLE MODE OPERATION APPLICATIONS INFORMATION ADIsimPower DESIGN TOOL CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties ENABLE PIN OPERATION SOFT START NOISE REDUCTION OF THE ADJUSTABLE ADP7182 CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS Thermal Characterization Parameter, ΨJB PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE