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參數資料
| 型號： | MP8640DL |
| 廠商： | MONOLITHIC POWER SYSTEMS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 800 kHz SWITCHING FREQ-MAX, DSO14 |
| 封裝： | 3 X 4 MM, MO-229VGED-3, QFN-14 |
| 文件頁數： | 2/10頁 |
| 文件大?。?/td> | 351K |
| 代理商： | MP8640DL |
MP8640 – 3A, 23V, 600KHz STEP-DOWN WITH SYNCHRONOUS GATE DRIVER
MP8640 Rev. 1.0
12/13/2007
www.MonolithicPower.com
2
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2007 MPS. All Rights Reserved.
PACKAGE REFERENCE
Part Number*
MP8640DL
Package
3x4 QFN14
Temperature
–40
°
C to +85
°
C
*
For Tape & Reel, add suffix –Z (eg. MP8640DL–Z)
For RoHS Compliant Packaging, add suffix –LF
(eg. MP8640DL–LF–Z)
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage V
IN
....................................... 25V
V
SW
............................................................... 26V
V
BS
....................................................... V
SW
+ 6V
All Other Pins.................................–0.3V to +6V
Junction Temperature...............................150
°
C
Lead Temperature....................................260
°
C
Storage Temperature ..............–65
°
C to +150
°
C
Recommended Operating Conditions
(2)
Supply Voltage V
IN
...........................4.5V to 23V
Output Voltage V
OUT
........................0.8V to 15V
Operating Temperature .............–40
°
C to +85
°
C
Thermal Resistance
(3)
3x4 QFN14 48 ...... 11...
°
C/W
θ
JA
θ
JC
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
operating conditions.
3) Measured on approximately 1” square of 1 oz copper.
ELECTRICAL CHARACTERISTICS
V
IN
= 12V, T
A
= +25
°
C, unless otherwise noted.
Parameters
Feedback Voltage
Feedback Current
Switch On Resistance
(4)
Switch Leakage
Current Limit
(4)
Oscillator Frequency
Fold-back Frequency
Maximum Duty Cycle
Minimum On Time
(4)
Under Voltage Lockout Threshold Rising
Under Voltage Lockout Threshold Hysteresis
EN Input Low Voltage
En Input High Voltage
Symbol
V
FB
I
FB
R
DS(ON)
f
SW
t
ON
Condition
4.5V
≤
V
IN
≤
23V
V
FB
= 0.8V
V
EN
= 0V, V
SW
= 0V
V
FB
= 0.6V
V
FB
= 0V
V
FB
= 0.6V
V
FB
= 1V
V
EN
= 2V
V
EN
= 0V
V
EN
=
0V
V
EN
=
2V, V
FB
= 1V
PG Sink 4mA
Min
0.788
4
400
60
85
3.9
1.2
4.5
0.69
Typ
0.808
10
80
0
600
150
90
100
4.1
880
2
0
0
0.9
150
5
1
4
20
0.74
40
Max
0.828
Units
V
nA
m
μ
A
A
KHz
KHz
%
ns
V
mV
V
V
10
800
240
4.3
0.4
10
1.1
2
5.5
0.79
0.4
EN Input Current
μ
A
Supply Current (Shutdown)
Supply Current (Quiescent)
Thermal Shutdown
BG Driver Bias Supply Voltage
Gate Driver Sink Impedance
(4)
Gate Driver Source Impedance
(4)
Gate Drive Current Sense Trip Threshold
Power Good Threshold
Power Good Threshold Hysteresis
PG Pin Level
Note:
4) Guaranteed by design.
μ
A
mA
°C
V
mV
V
mV
V
V
CC
R
SINK
R
SOURCE
V
PG
TOP VIEW
FB
PG
EN/SYNC
IN
IN
IN
N/C
1
2
3
4
5
6
7
GND
BG
VCC
BST
SW
SW
SW
14
13
12
11
10
9
8
EXPOSED PAD
ON BACKSIDE
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相關代理商/技術參數 |
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| MP8640DL-LF-P | 功能描述:開關變換器、穩(wěn)壓器與控制器 3A 23V 600kHz Step Dwn w/Sync Gate Drvr RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MP8640DL-LF-Z | 功能描述:開關變換器、穩(wěn)壓器與控制器 3A 23V 600kHz Step Dwn w/Sync Gate Drvr RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MP8642DU-LF-P | 功能描述:開關變換器、穩(wěn)壓器與控制器 Dual 3A, 23V 600kHz Step-Down RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MP8642DU-LF-Z | 功能描述:開關變換器、穩(wěn)壓器與控制器 Dual 3A, 23V 600kHz Step-Down RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MP8666DN-LF | 功能描述:開關變換器、穩(wěn)壓器與控制器 6A, 600kHz Step-Down w/Sync Gate Driver RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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