–3–

REV. 0

ADP3161

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

SUPPLY

DC Supply Current

Normal Mode

3.8

5.5

mA

UVLO Mode

VCC

220

400

µA

UVLO Threshold Voltage

5.9

6.4

6.9

V

UVLO Hysteresis

0.1

0.4

0.6

V

NOTES

Specifications subject to change without notice.

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily

accumulate on the human body and test equipment and can discharge without detection.

Although the ADP3161 features proprietary ESD protection circuitry, permanent damage may

occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD

precautions are recommended to avoid performance degradation or loss of functionality.

PIN FUNCTION DESCRIPTIONS

Pin

No.

Name

Function

1

NC

No Connect.

2–5

VID3–

Voltage Identification DAC Inputs.

VID0

These pins are pulled up to an internal refer-

ence, providing a Logic 1 if left open. The

DAC output programs the FB regulation

voltage from 1.3 V to 2.05 V.

6

COMP

Error Amplifier Output and Compensation

Point. The voltage at this output programs

the output current control level between

CS+ and CS–.

7

FB

Feedback Input. Error amplifier input for

remote sensing of the output voltage.

8

CT

External capacitor CT connection to ground

sets the frequency of the device.

9

GND

Ground. All internal signals of the ADP3161

are referenced to this ground.

10

PWRGD

Open drain output that signals when the output

voltage is in the proper operating range.

11

CS+

Current Sense Positive Node. Positive input

for the current comparator. The output

current is sensed as a voltage at this pin with

respect to CS–.

12

PWM2

Logic-level output for the phase 2 driver.

13

PWM1

Logic-level output for the phase 1 driver.

14

CS–

Current Sense Negative Node. Negative

input for the current comparator.

15

REF

3.0 V Reference Output.

16

VCC

Supply Voltage for the ADP3161.

ABSOLUTE MAXIMUM RATINGS

*

VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +15 V

CS+, CS– . . . . . . . . . . . . . . . . . . . . . . –0.3 V to VCC + 0.3 V

All Other Inputs and Outputs . . . . . . . . . . . . –0.3 V to +10 V

Operating Ambient Temperature Range . . . . . . . 0

°C to 70°C

Operating Junction Temperature . . . . . . . . . . . . . . . . . . 125

°C

Storage Temperature Range . . . . . . . . . . . . –65

°C to +150°C

Two-Layer Board . . . . . . . . . . . . . . . . . . . . . . . . . . 125

°C/W

Four-Layer Board . . . . . . . . . . . . . . . . . . . . . . . . . . 81

°C/W

Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300

°C

Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

°C

Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

°C

*This is a stress rating only; operation beyond these limits can cause the device to

be permanently damaged. Unless otherwise specified, all voltages are referenced

to GND.

PIN CONFIGURATION

R-16A

TOP VIEW

(Not to Scale)

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

ADP3161

VCC

REF

GND

CT

COMP

PWM1

PWM2

PWRGD

CS–

CS+

FB

NC

VID3

VID2

VID1

VID0

NC = NO CONNECT

ORDERING GUIDE

Temperature

Package

Package

Model

Range

Description

Option

ADP3161JR 0

°C to 70°C

Narrow Body SOIC

R-16A (SO-16)

WARNING!

ESD SENSITIVE DEVICE