參數(shù)資料
型號： MAX8550
廠商： Maxim Integrated Products, Inc.
英文描述： Integrated DDR Power-Supply Solutions for Desktops. Notebooks. and Graphic Cards
中文描述： 集成DDR電源方案，適用于臺式機(jī)、筆記本電腦及圖形卡
文件頁數(shù)： 2/14頁
文件大?。?/td> 296K
代理商： MAX8550
M
PWM Buc k Converters with Bypass FET
for N-CDMA/W-CDMA Handsets
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
BATTP, BATT, OUT,
SHDN
,
SKIP
, HP,
REFIN, FB to GND....................................................-0.3V to +6V
PGND to GND .......................................................-0.3V to +0.3V
REF, COMP to GND ................................-0.3V to (V
BATT
+ 0.3V)
LX Current (Note 1).............................................................2.25A
Output Short-Circuit Duration........................................Indefinite
ELECTRICAL CHARACTERISTICS
(V
BATT
= V
BATTP
= 3.6V,
SHDN
=
SKIP
= BATT, V
REFIN
= 1.932V (MAX8500, MAX8502), V
REFIN
= 1.70V (MAX8501, MAX8503), C
REF
= 0.22μF, T
A
= -40
°
C to +85
°
C, unless otherwise noted. Typical values are at T
A
= +25
°
C.) (Note 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Continuous Power Dissipation (T
A
= +70
°
C)
12-Lead Thin QFN (derate 16.9mW/
°
C above +70
°
C).1349mW
Operating Temperature Range ...........................-40
°
C to +85
°
C
J unction Temperature......................................................+150
°
C
Storage Temperature Range.............................-65
°
C to +150
°
C
Lead Temperature (soldering, 10s) .................................+300
°
C
PARAMETER
SYMBOL
V
BATT
V
UVLO
CONDITIONS
MIN
2.6
2.15
TYP
MAX
5.5
2.50
450
2200
UNITS
V
V
Input BATT Voltage
Undervoltage Lockout Threshold
V
BATT
rising, 1% hysteresis
SKIP
= GND
SKIP
= BATT, no switching
SKIP
= BATT, switching
2.35
280
450
3300
Quiescent Current
I
Q
μA
Quiescent Current in Dropout
V
REFIN
= 2.2V (MAX8500, MAX8503),
HP = BATT (MAX8504)
400
700
μA
Shutdown Supply Current
I
SHDN
SHDN
= GND, V
BATT
= V
BATTP
= 5.5V
V
REFIN
= 1.932V, load = 0 to 600mA
V
REFIN
= 0.227V
V
REFIN
= 1.700V, load = 0 to 600mA
V
REFIN
= 0.200V
0.1
3.40
0.40
3.40
0.40
-0.05
0.007
245
0.1
1.76
1.68
2
1.909
1.25
5
μA
3.33
0.35
3.33
0.35
3.47
0.45
3.47
0.45
OUT Voltage Accuracy
(MAX8500, MAX8502)
V
OUT
V
OUT Voltage Accuracy
(MAX8501, MAX8503)
V
OUT
V
OUT Voltage-Load Regulation
OUT Voltage-Line Regulation
OUT Input Resistance
REFIN Input Current
%/A
%/V
k
μA
MAX8500, MAX8503
100
-1
I
REF
+1
PWM buck
LDO linear regulator
PWM buck
LDO linear regulator
REFIN to OUT Gain
(MAX8500, MAX8502)
A
V
V/V
REFIN to OUT Gain
(MAX8501, MAX8503)
A
V
V/V
Reference Voltage
Reference Load Regulation
Reference UVLO
FB Voltage Accuracy (MAX8504)
FB Input Current (MAX8504)
V
REF
1.225
1.275
6.25
1.10
1.275
150
0.70
V
10μA < I
REF
< 100
μA
mV
V
V
nA
0.86
1.225
0.96
1.250
10
0.35
0.45
V
FB
I
FB
V
FB
= 1.3V
I
LX
= 180mA, V
BATT
= 3.6V
I
LX
= 180mA, V
BATT
= 2.6V
P-Channel On-Resistance
P
RDS
Note 1:
LX has internal clamp diodes to PGND and BATTP. Applications that forward bias these diodes should take care not to
exceed the IC
’
s package power dissipation limits.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX8550AETI 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX8550AETI+ 功能描述:電壓模式 PWM 控制器 Integrated DDR Power Supply Solution RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX8550AETI+T 功能描述:電壓模式 PWM 控制器 Integrated DDR Power Supply Solution RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX8550AETI-T 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX8550ETI 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
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