參數(shù)資料
型號： MAX1777EEI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： 32-Bit Digital Signal Controller with ROM 100-BGA MICROSTAR -40 to 125
中文描述： DUAL SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO28
封裝： 0.150 INCH, 0.025 INCH PITCH, QSOP-28
文件頁數(shù)： 2/32頁
文件大小： 497K
代理商： MAX1777EEI
M
High-Effic ienc y, Quad Output, Main Power-
S upply Controllers for Notebook Computers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V+,
SHDN
to GND..................................................-0.3V to +25V
BST_ to GND ..........................................................-0.3V to +30V
LX_ to BST_ ..............................................................-6V to +0.3V
CS_ to GND (MAX1777/MAX1977 only)......................-2V to +6V
V
CC
, LDO5, LDO3, OUT3, OUT5, ON3, ON5, REF,
FB3, FB5,
SKIP
,
PRO
, PGOOD to GND ...............-0.3V to +6V
DH3 to LX3..............................................-0.3V to (V
BST3
+ 0.3V)
DH5 to LX5..............................................-0.3V to (V
BST5
+ 0.3V)
ILIM3, ILIM5 to GND...................................-0.3V to (V
CC
+ 0.3V)
DL3, DL5 to GND....................................-0.3V to (V
LDO5
+ 0.3V)
TON to GND (MAX1999 only)...................................-0.3V to +6V
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1 and Figure 2, no load on LDO5, LDO3, OUT3, OUT5, and REF, V+ = 12V, ON3 = ON5 = V
CC
, V
SHDN
= 5V,
T
A
= 0°C to +85°C
, unless otherwise noted. Typical values are at T
A
= +25°C.)
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.
LDO3, LDO5, REF Short Circuit to GND ....................Momentary
LDO3 Current (Internal Regulator) Continuous ..............+100mA
LDO3 Current (Switched Over to OUT3) Continuous.....+200mA
LDO5 Current (Internal Regulator) Continuous ..............+100mA
LDO5 Current (Switched Over to OUT5) Continuous.....+200mA
Continuous Power Dissipation
28-Pin QSOP (derate 10.8mW/°C above +70°C).........860mW
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
CONDITIONS
MIN
TYP
MAX
UNITS
MAIN SMPS CONTROLLERS
LDO5 in regulation
V+ = LDO5, V
OUT5
< 4.43V
6
24
5.5
V+ Input Voltage Range
4.5
V
3.3V Output Voltage in
Fixed Mode
V+ = 6V to 24V, FB3 = GND, V
SKIP
= 5V
3.285
3.330
3.375
V
V+ = 6V to 24V, FB5 = GND, V
SKIP
= 5V,
MAX1777/MAX1999 (TON = V
CC
)
5V Output Voltage in Fixed Mode
V+ = 7V to 24V, FB5 = GND, V
SKIP
= 5V,
MAX1977/MAX1999 (TON = GND)
4.975
5.050
5.125
V
Output Voltage in
Adjustable Mode
V+ = 6V to 24V, either SMPS
1.975
2.00
2.025
V
Output Voltage Adjust Range
Either SMPS
2.0
5.5
V
FB3, FB5 Adjustable-Mode
Threshold Voltage
Dual-mode comparator
0.1
0.2
V
Either SMPS, V
SKIP
= 5V, 0 to 5A
Either SMPS,
SKIP
= GND, 0 to 5A
Either SMPS, V
SKIP
= 2V, 0 to 5A
Either SMPS, 6V < V+ < 24V
-0.1
-1.5
-1.7
0.005
DC Load Regulation
%
Line Regulation
%/V
Current-Limit Threshold
(Positive, Default)
ILIM_ = V
CC
, GND - CS_ (MAX1777/MAX1977),
GND - LX_ (MAX1999)
93
100
107
mV
V
ILIM_
= 0.5V
V
ILIM_
= 1V
V
ILIM_
= 2V
40
93
185
50
100
200
60
107
215
Current-Limit Threshold
(Positive, Adjustable)
GND - CS_
(MAX1777/MAX1977),
GND - LX_ (MAX1999)
mV
Zero-Current Threshold
SKIP
= GND, ILIM_ = V
CC
, GND - CS_
(MAX1777/MAX1977), GND - LX_ (MAX1999)
3
mV
Current-Limit Threshold
(Negative, Default)
SKIP
= ILIM_ = V
CC
, GND - CS_ (MAX1777/MAX1977),
GND - LX_ (MAX1999)
-120
mV
Soft-Start Ramp Time
Zero to full limit
1.7
ms
相關(guān)PDF資料
PDF描述
MAX1777 High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers
MAX1777-MAX1999 High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers
MAX1977 High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers
MAX1999 High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers
MAX1977EEI High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1777EEI+ 功能描述:DC/DC 開關(guān)控制器 Quad-Out Main Power Sply Ctlr for Ntbk 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
MAX1777EEI+T 功能描述:DC/DC 開關(guān)控制器 Quad-Out Main Power Sply Ctlr for Ntbk 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
MAX1777EEI-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
MAX1778EUG 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT
MAX1778EUG+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Quad-Output TFT LCD w/Buffer RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT
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