參數(shù)資料
型號： MAX8562
廠商： Maxim Integrated Products, Inc.
元件分類： DC/DC變換器
英文描述： 4MHz. 500mA Synchronous Step-Down DC-DC Converters in Thin SOT and TDFN
中文描述： 4MHz、500mA同步降壓型DC-DC轉(zhuǎn)換器，薄型SOT和TDFN封裝
文件頁數(shù)： 2/14頁
文件大?。?/td> 296K
代理商： MAX8562
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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相關代理商/技術(shù)參數(shù)
參數(shù)描述
MAX8562ETA 制造商:Maxim Integrated Products 功能描述:4MHZ 500MA SYNCHRONOUS STEP-DOWN DC-DC CONVERTERS IN THIN SO - Rail/Tube
MAX8562ETA+ 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX8562ETA-T 功能描述:直流/直流開關轉(zhuǎn)換器 4MHz 500mA Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
MAX8563EEE 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
MAX8563EEE+ 功能描述:低壓差控制器 - LDO Dual & Triple Linear n-FET Controller RoHS:否 制造商:Micrel 最大輸入電壓:5.5 V 輸出電壓:Adjustable 輸出電流:10 mA 負載調(diào)節(jié): 輸出類型:Adjustable, Fixed 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-6
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