ADP3153 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADP3153 Datasheet PDF : 12 Pages
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ADP3153
Pin
1–4, 20
5
6
7
8, 18
9
10
11
12
13
14
15
16
17
19
Mnemonic
VID1–VID4,
VID0
AGND
SD
FB
NC
VLDO
SENSE–
SENSE+
CT
CMP
PWRGD
VCC
DRIVE2
DRIVE1
PGND
PIN FUNCTION DESCRIPTIONS
Function
Voltage Identification DAC Input Pins. These pins are internally pulled up to VREG providing a
logic high if left open. The DAC output range is 600 mV to 1.167 V. Leaving all five DAC
inputs open results in placing the ADP3153 into shutdown.
Analog Ground Pin. This pin must be routed separately to the (–) terminal of COUT.
Shutdown Pin. A logic high will place the ADP3153 in shutdown and disable both outputs. This
pin is internally pulled down.
This pin is the feedback connection for the linear controller. Connect this pin to the resistor
divider network to set the output voltage of the linear regulator.
No Connect.
Gate Drive for the Linear Regulator N-channel MOSFET.
Connects to the internal resistor divider which along with the VID code, sets the output voltage.
Pin 10 is also the (–) input for the current comparator.
The (+) input for the current comparator. A threshold between Pins 10 and 11 set by the error
amplifier in conjunction with RSENSE, sets the current trip point.
External Capacitor CT from Pin 12 to ground sets the off time of the device.
Error Amplifier Compensation Point. The current comparator threshold increases with the Pin
13 voltage.
Power Good Pin. An open drain signal to indicate that the output voltage is within a ± 5% regu-
lation band.
Input Voltage Pin.
Gate Drive for the Synchronous Rectifier N-channel MOSFET. The voltage at Pin 16 swings
from ground to VCC.
Gate Drive for the buck switch N-channel MOSFET. The voltage at Pin 17 swings from ground
to VCC.
Driver Power Ground. Connects to the source of the bottom N-channel MOSFET onto the (–)
terminal of CIN.
ABSOLUTE MAXIMUM RATINGS*
Input Supply Voltage (Pin 15) . . . . . . . . . . . . –0.3 V to +16 V
Shutdown Input Voltage . . . . . . . . . . . . . . . . –0.3 V to +16 V
Power Dissipation . . . . . . . . . . . . . . . . . . . . Internally Limited
Operating Temperature Range . . . . . . . . . . . . . 0°C to +70°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
θJA␣ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110°C/W
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature Range (Soldering 10 sec) . . . . . . . . +300°C
*This is a stress rating only; operation beyond these limits can cause the device to
be permanently damaged.
ORDERING GUIDE
Model
Temperature Package
Range
Description
Package
Option
ADP3153ARU 0°C to +70°C Thin Shrink Small RU-20
Outline (TSSOP)
PIN CONFIGURATION
20-Lead Thin Shrink Small Outline (TSSOP)
(RU-20)
VID1 1
20 VID0
VID2 2
19 PGND
VID3 3
18 NC
VID4 4
17 DRIVE 1
AGND 5 ADP3153 16 DRIVE 2
SD
6
TOP VIEW
(Not to Scale)
15
VCC
FB 7
14 PWRGD
NC 8
13 CMP
VLDO 9
SENSE– 10
12 CT
11 SENSE+
NC = NO CONNECT
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 ADP3153 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.
WARNING!
ESD SENSITIVE DEVICE
REV. 0
–3–
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