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參數(shù)資料
| 型號(hào)： | MAX1994ETM |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Dual Step-Down Controllers Plus Linear- Regulator Controller for Notebook Computers |
| 中文描述： | DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CQCC48 |
| 封裝： | 7 X 7 MM, 0.80 MM HEIGHT, THIN, QFN-48 |
| 文件頁數(shù)： | 2/49頁 |
| 文件大?。?/td> | 983K |
| 代理商： | MAX1994ETM |
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M
Dual Step-Down Controllers Plus Linear-
Regulator Controller for Notebook Computers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V+ to AGND............................................................-0.3V to +30V
V
CC
, V
DD
to AGND...................................................-0.3V to +6V
PGND, GDS to AGND.........................................................
±
0.3V
SKP1/
SDN
, SKP2/
SDN
, LIN/
SDN
to AGND............-0.3V to +16V
LINBSE, SUS, PERF,
DPSLP
, PGOOD,
LINGOOD, CS1+, CS1-, FBS, D0
–
D4,
OUT2 to AGND.....................................................-0.3V to +6V
OFS0, OFS1, OFS2, ILIM1, ILIM2,
FB2, REF, TON, TIME, OVPSET, S0, S1,
GAIN, CC, LINFB to AGND ....................-0.3V to (V
CC
+ 0.3V)
DL1, DL2 to PGND .....................................-0.3V to (V
DD
+ 0.3V)
DH1 to LX1 ..............................................-0.3V to (V
BST1
+ 0.3V)
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.
DH2 to LX2 ..............................................-0.3V to (V
BST2
+ 0.3V)
BST1 to LX1..............................................................-0.3V to +6V
BST2 to LX2..............................................................-0.3V to +6V
LX1, LX2, CS2 to AGND............................................-2V to +30V
REF Short Circuit to AGND.........................................Continuous
LINBSE Short Circuit to +6V.......................................Continuous
Continuous Power Dissipation (T
A
= +70
°
C)
48-Pin Thin QFN (derate 26.3mW/
°
C above +70
°
C) .2105mW
Operating Temperature Range .........................-40
°
C to +100
°
C
Junction Temperature......................................................+150
°
C
Storage Temperature Range.............................-65
°
C to +150
°
C
Lead Temperature (soldering, 10s).................................+300
°
C
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = 15V, V
OUT1
= 1.20V, V
OUT2
= 2.50V, V
CC
= V
DD
= 5.0V, V
SKP1/
SDN
= V
SKP2/
SDN
= V
LIN/
SDN
= 5.0V,
T
A
= 0°C to +85°C
. Typical values are at T
A
= +25
°
C, unless otherwise noted.)
PARAMETER
CONDITIONS
TON = REF, open, or V
CC
TON = GND
MIN
2
2
4.5
TYP
MAX
28
16
5.5
UNITS
Battery voltage V+
Input Voltage Range
V
CC
, V
DD
V
DAC codes from 0.600V to
1.750V (MAX1816)
BUCK1 DC Output Voltage
Accuracy
V+
= 4.5V to 28V,
includes load
regulation errors,
OFS_ = GDS = AGND,
CS1+ = CS1- = FBS
DAC codes from 0.700V to
2.000V (MAX1994)
-1
+1
%
FB2 = GND
FB2 = V
CC
FB2 = OUT2
2.475
1.782
0.990
1.0
2.500
1.800
1.000
2.525
1.818
1.010
5.5
BUCK2 Error Comparator Threshold
(DC Output Voltage Accuracy)
(Note 1)
V+
= 4.5V to 28V
V
OUT2 Adjust Range
V
FB2 GND Level
Voltage level to enable internal feedback for BUCK2
with V
OUT2
= 2.5V
0.05
V
FB2 External Feedback Level
Voltage level to enable external feedback for BUCK2
with FB2 regulated to 1.0V nominal
0.15
1.90
V
FB2 V
CC
Level
Voltage level to enable internal feedback for BUCK2
with V
OUT2
= 1.8V
GAIN = GND
GAIN = REF
GAIN = open
GAIN = V
CC
2.10
V
0
1.425
1.900
3.800
1.500
2.000
4.000
1.575
2.100
4.200
Voltage-Positioning Gain
V/V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1994ETM+ | 功能描述:DC/DC 開關(guān)控制器 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1994ETM+T | 功能描述:DC/DC 開關(guān)控制器 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1994ETM-T | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1994EVKIT | 功能描述:DC/DC 開關(guān)控制器 Evaluation Kit for the MAX1816 MAX1980 MAX1994 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1995EGI | 功能描述:顯示驅(qū)動(dòng)器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
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