ADP2164 Data Sheet

Rev. 0 | Page 4 of 20

Parameter Symbol Test Conditions/Comments Min Typ Max Unit

INTEGRATED SOFT START

Soft Start Time All switching frequencies 2048

Clock

cycles

EN PIN

EN Input Rising Threshold 1.12 1.2 1.28 V

EN Input Hysteresis 100 mV

EN Pull-Down Resistor 1 MΩ

THERMAL SHUTDOWN

Thermal Shutdown Threshold T

increasing 140 °C

Thermal Shutdown Hysteresis 15

°C

Pin-to-pin measurements.

Guaranteed by design.

Data Sheet ADP2164

Rev. 0 | Page 5 of 20

ABSOLUTE MAXIMUM RATINGS

Table 2.

Parameter Rating

PVIN, VIN, SW −0.3 V to +7 V

FB, SYNC, TRK, RT, EN, PGOOD −0.3 V to +7 V

PGND to GND −0.3 V to +0.3 V

Operating Junction Temperature Range −40°C to +125°C

Storage Temperature Range −65°C to +150°C

Soldering Conditions JEDEC J-STD-020

Stresses above those listed under Absolute Maximum Ratings

may cause permanent damage to the device. This is a stress

rating only; functional operation of the device at these or any

other conditions above those indicated in the operational

section of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect

device reliability.

THERMAL RESISTANCE

is measured using natural convection on a JEDEC 4-layer

board. The exposed pad is soldered to the printed circuit board

with thermal vias.

Table 3. Thermal Resistance

Package Type θ

Unit

16-Lead LFCSP 38.3 °C/W

ESD CAUTION

ADP2164 Data Sheet

Rev. 0 | Page 6 of 20

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

09944-003

PVIN

NOTES

1. THE EXPOSED PAD SHOULD BE SOLDERED

TO AN EXTERNAL GROUND PLANE UNDER

THE IC FOR THERMAL DISSIPATION.

YNC

TRK

PGN

GND

PGND

GND

PGOO

VIN

PVIN

ADP2164

TOP VIEW

(Not to Scale)

Figure 3. Pin Configuration

Table 4. Pin Function Descriptions

Pin No. Mnemonic Description

1 SYNC

Synchronization Input. To synchronize the switching frequency to an external clock, connect this pin to an

external clock with a frequency of 500 kHz to 1.4 MHz (see the Oscillator and Synchronization section for

more information).

2 RT

Frequency Setting. To select a switching frequency of 600 kHz, connect this pin to GND; to select a switching

frequency of 1.2 MHz, connect this pin to VIN. To program the frequency from 500 kHz to 1.4 MHz, connect a

resistor from this pin to GND (see the Oscillator and Synchronization section for more information).

3 TRK

Tracking Input. To track a master voltage, connect the TRK pin to a voltage divider from the master voltage. If

the tracking function is not used, connect the TRK pin to VIN. For more information, see the Voltage Tracking

section.

4 FB

Feedback Voltage Sense Input. Connect this pin to a resistor divider from V

OUT

. For the preset output version,

connect this pin directly to V

OUT

5 GND Analog Ground. Connect to the ground plane.

6, 7, 8 PGND Power Ground. Connect to the ground plane and to the output return side of the output capacitor.

9, 10, 11 SW Switch Node Output. Connect to the output inductor.

12, 13 PVIN

Power Input Pin. Connect this pin to the input power source. Connect a bypass capacitor between this pin

and PGND.

14 VIN

Bias Voltage Input Pin. Connect a bypass capacitor between this pin and GND; connect a small (10 Ω) resistor

between this pin and PVIN.

15 EN

Precision Enable Pin. The external resistor divider can be used to set the turn-on threshold. To enable the

part automatically, connect the EN pin to VIN. This pin has a 1 MΩ pull-down resistor to GND.

16 PGOOD Power-Good Output (Open Drain). Connect this pin to a resistor from any pull-up voltage lower than 6.5 V.

17 (EPAD) Exposed Pad The exposed pad should be soldered to an external ground plane under the IC for thermal dissipation.

Part #	C3225X5R0J107M
Description	Cap Ceramic 100uF 6.3V X5R 20% SMD 1210 85C Plastic T/R Additional Information:
Category	CAPACITOR
Availability	Out of Stock
Qty	0

C3225X5R0J107M

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