參數(shù)資料
型號： 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)： 8/49頁
文件大?。?/td> 983K
代理商： MAX1994ETM
M
Dual Step-Down Controllers Plus Linear-
Regulator Controller for Notebook Computers
8
_______________________________________________________________________________________
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
= -40
°
C to +100
°
C
, unless otherwise noted.) (Note 6)
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)
FB2 = GND
FB2 = V
CC
FB2 = OUT2
-1.5
+1.5
%
2.463
1.773
0.985
1.0
1.425
1.900
3.800
2.538
1.827
1.015
5.5
1.575
2.100
4.200
BUCK2 Error Comparator
Threshold (DC Output-Voltage
Accuracy) (Note 1)
V+
= 4.5V to 28V
V
OUT2 Adjust Range
V
GAIN = REF
GAIN = open
GAIN = V
CC
Voltage-Positioning Gain
V/V
Current-Sense Differential Input
Range (CS1+, CS1-)
200
mV
Remote-Sense Differential Input
Range (CS1+, FBS)
300
mV
Remote-Sense Differential Input
Range (GDS, AGND)
200
mV
CS1+, FBS Input Bias Current
CS1- Input Bias Current
-300mV < V
CS1+
- V
FBS
< +300mV
-100mV < V
CS1+
- V
CS1-
< +100mV, V
CS1-
= V
FBS
252kHz nominal; R
TIME
=143k
53kHz nominal to 530kHz nominal; R
TIME
= 680k
to 68k
V+ = 5V, CS1- = 1.2V
-60
-60
-8
-12
230
165
320
465
630
495
495
740
+60
+60
+8
+12
290
215
390
565
810
605
605
910
500
375
μA
μA
TIME Frequency Accuracy
%
TON = GND (1000kHz)
TON = REF (550kHz)
TON = open (300kHz)
TON = V
CC
(200kHz)
TON = GND (715kHz)
TON = REF (390kHz)
TON = open (390kHz)
TON = V
CC
(260kHz)
BUCK1 On-Time (Note 2)
V+ = 12V, CS1- = 1.2V
ns
V+ = 5V, OUT2 = 2.5V
BUCK2 On-Time (Note 2)
V+ = 12V, OUT2 = 2.5V
ns
TON = open, TON = V
CC
(Note 2)
TON = GND, TON = REF (Note 2)
Measured at V
CC
, with FBS, OUT2, FB2, and LINFB
forced above the no-load regulation point
Minimum Off-Time
ns
Quiescent Supply Current (V
CC
)
4500
μA
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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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