Datasheet

ADP1614 Data Sheet
Rev. A | Page 6 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
1COMP
2FB
3EN
4GND
5GND
10 SS
9 CLRES/FREQ
8 VIN
7 SW
6 SW
ADP1614
TOP VIEW
(Not to Scale)
NOTES
1. THE EXPOSED PAD IS NOT ELECTRICALLY
CONNECTED; CONNECT THIS PAD TO A GROUND
PLANE FOR BETTER HEAT DISTRIBUTION.
10293-002
Figure 3. Pin Configuration
Table 4. Pin Function Descriptions
Pin No. Mnemonic Description
1 COMP Compensation Input. Connect a series resistor-capacitor network from COMP to GND to compensate the
regulator.
2 FB Output Voltage Feedback Input. Connect a resistive voltage divider from the output voltage to FB to set the
regulator output voltage.
3
EN
Enable Input. Drive EN low to shut down the regulator; drive EN high to turn on the regulator.
4, 5 GND Ground.
6, 7 SW Switching Output. Connect the power inductor from the input voltage to SW and connect the external rectifier
from SW to the output voltage to complete the step-up converter.
8 VIN Main Power Supply Input. VIN powers the ADP1614 internal circuitry. Connect VIN to the input source voltage.
Bypass VIN to GND with a 10 µF or greater capacitor as close to the ADP1614 as possible.
9 CLRES/FREQ Current-Limit Resistor (CLRES). Connect a resistor to GND to set the peak inductor current.
Fr
equency Setting Input (FREQ). Connect FREQ to GND to program the oscillator to 650 kHz, or connect FREQ to
VIN to program it to 1.3 MHz. Do not leave this pin floating.
10 SS Soft Start. A capacitor connected from SS to GND brings up the output slowly at power-up and reduces inrush
current.
11
EP
Exposed Die Attach Pad. The exposed pad is not electrically connected; connect this pad to a ground plane for
better heat distribution.