Datasheet ADP1706, ADP1707, ADP1708 (Analog Devices) - 6

ADP1706/ADP1707/ADP1708 Data Sheet PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS EN 1 8 SS EN 1 8 SS GND ADP1706 2 7 SENSE GND 2 7 SENSE ADP1706 IN 3 TOP VIEW 6 OUT TOP VIEW (Not to Scale) IN 3 6 OUT (Not to Scale) IN 4 5 OUT IN 4 5 OUT NOTES NOTES 1. EXPOSED PAD. THE EXPOSED PAD ENHANCES THERMAL PERFORMANCE 1. EXPOSED PAD. THE EXPOSED PAD ENHANCES THERMAL PERFORMANCE AND IS ELECTRICALLY CONNECTED TO GND INSIDE THE PACKAGE. IT IS AND IS ELECTRICALLY CONNECTED TO GND INSIDE THE PACKAGE. IT IS
-004
RECOMMENDED TO CONNECT THE EXPOSED PAD TO THE GROUND PLANE
007 40
RECOMMENDED TO CONNECT THE EXPOSED PAD TO THE GROUND PLANE ON THE BOARD.
40- 066
ON THE BOARD.
066 Figure 4. 8-Lead SOIC, ADP1706 Figure 5. 8-Lead LFCSP, ADP1706
Table 4. ADP1706 Pi n Function Descriptions Pin No. SOIC LFCSP Mnemonic Description
1 1 EN Enable Input. Drive EN high to turn on the regulator; drive it low to turn off the regulator. For automatic startup, connect EN to IN. 2 2 GND Ground. 3, 4 3, 4 IN Regulator Input Supply. Bypass IN to GND with a 4.7 μF or greater capacitor. 5, 6 5, 6 OUT Regulated Output Voltage. Bypass OUT to GND with a 4.7 μF or greater capacitor. 7 7 SENSE Sense. Measures the actual output voltage at the load and feeds it to the error amplifier. Connect SENSE as close as possible to the load to minimize the effect of IR drop between the regulator output and the load. 8 8 SS Soft Start. A capacitor connected to this pin determines the soft start time. 0 0 EP Exposed Pad. The exposed pad enhances thermal performance and is electrically connected to GND inside the package. It is recommended to connect the exposed pad to the ground plane on the board. Rev. A | Page 6 of 20 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUITS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION SOFT START FUNCTION (ADP1706) ADJUSTABLE OUTPUT VOLTAGE (ADP1708) TRACK MODE (ADP1707) ENABLE FEATURE APPLICATIONS INFORMATION CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties VOLTAGE TRACKING APPLICATIONS CURRENT LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE NOTES