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參數(shù)資料
| 型號： | ADP3155JRU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 5-Bit Programmable Triple Power Supply Controller for Pentium III Processors |
| 中文描述： | SWITCHING CONTROLLER, PDSO20 |
| 封裝： | TSSOP-20 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大小： | 200K |
| 代理商： | ADP3155JRU |
REV. A
ADP3155
–3–
PIN FUNCTION DESCRIPTIONS
Pin No.
Mnemonic
Function
1–4, 20
VID1–VID4,
VID0
Voltage Identification DAC Inputs. These pins are pulled up to an internal reference, providing a
Logic 1 if left open. The DAC output programs the SENSE– regulation voltage from 1.3 V to 3.5 V.
Leaving all five DAC inputs open results in placing the ADP3155 into shutdown.
Analog Ground. All internal signals of the ADP3155 are referenced to this ground.
Shutdown. A logic high will place the ADP3155 in shutdown and disable both outputs. This pin is
internally pulled down.
These pin are the feedback connections for the linear controllers. Connect each pin to the resistor
divider from each respective linear regulator output to set its output voltage.
Gate drives for the respective linear regulator N-channel MOSFETs.
Connects to the internal resistor divider that senses the output voltage. This pin is also the reference
input for the current comparator.
The (+) input for the current comparator. The output current is sensed as a voltage at this pin with
respect to SENSE–.
External capacitor C
T
connection to ground sets the off time of the device.
Error Amplifier output and compensation point. The voltage at this output programs the output cur-
rent control level between the SENSE pins.
Power Good. An open drain signal indicates that the output voltage is within a
±
5% regulation band.
Supply Voltage to ADP3155.
Gate Drive for the (bottom) synchronous rectifier N-channel MOSFET. The voltage at DRIVE2
swings from ground to V
CC
.
Gate Drive for the buck switch N-channel MOSFET. The voltage at DRIVE1 swings from ground to
V
CC
.
Power Ground. The drivers turn off the buck and synchronous MOSFETs by discharging their gate
capacitances to this pin. PGND should have a low impedance path to the source of the synchronous
MOSFET.
5
6
AGND
SD
7, 14
FB1, FB2
8, 13
9
V
LDO1
, V
LDO2
SENSE–
10
SENSE+
11
12
C
T
CMP
15
16
17
PWRGD
V
CC
DRIVE2
18
DRIVE1
19
PGND
PIN CONFIGURATION
TOP VIEW
(Not to Scale)
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
ADP3155
SENSE+
SENSE–
V
LDO1
VID2
VID3
VID4
FB1
SD
AGND
C
T
CMP
V
LDO2
PGND
DRIVE1
DRIVE2
FB2
PWRGD
V
CC
VID1
VID0
ABSOLUTE MAXIMUM RATINGS*
Input Supply Voltage (V
CC
) . . . . . . . . . . . . . . –0.3 V to +16 V
Shutdown Input Voltage . . . . . . . . . . . . . . . . –0.3 V to +16 V
Operating Ambient Temperature Range . . . . . 0
°
C to +70
°
C
Junction Temperature Range . . . . . . . . . . . . . 0
°
C to +150
°
C
θ
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
°
C/W
Storage Temperature Range . . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature (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
Temperature
Range
Package
Description
Package
Option
Model
ADP3155JRU
0
°
C to +70
°
C
Thin Shrink Small
Outline (TSSOP)
RU-20
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 ADP3155 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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADP3155JRU-REEL | 制造商:Rochester Electronics LLC 功能描述:5-BIT PROGRAMMBLE TRIPLE POWER SUPPLY - Tape and Reel |
| ADP3155JRU-REEL7 | 功能描述:IC PS TRPL PENTIUM III 20-TSSOP RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝 |
| ADP3156 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual Power Supply Controller for Desktop Systems |
| ADP3156JR-1.5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ADP3156JR-1.5-REEL | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
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