參數(shù)資料
型號： MAX1540A
廠商： Maxim Integrated Products, Inc.
英文描述： Dual Step-Down Controllers with Saturation Protection, Dynamic Output, and Linear Regulator
中文描述： 雙路、降壓型控制器，帶有電感飽和保護(hù)、動態(tài)輸出和線性穩(wěn)壓器
文件頁數(shù)： 2/49頁
文件大?。?/td> 794K
代理商： MAX1540A
M
Dual Step-Down Controllers with Saturation
Protection, Dynamic Output, and Linear Regulator
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V+, LDOON to GND...............................................-0.3V to +28V
LDOOUT to GND (MAX1540A, Note 1)....................-0.3V to +6V
LDOOUT to GND (MAX1541, Note 1)....................-0.3V to +28V
V
DD
to GND (MAX1541, Note 1) ..............................-0.3V to +6V
V
CC
, ON_ to GND.....................................................-0.3V to +6V
SKIP
, PGOOD_ to GND............................................-0.3V to +6V
FB_, CSP_, ILIM_ to GND.........................................-0.3V to +6V
TON, OVP/UVP, LSAT to GND ...................-0.3V to (V
CC
+ 0.3V)
REF, OUT_ to GND.....................................-0.3V to (V
CC
+ 0.3V)
LDOIN to GND (MAX1541).....................................-0.3V to +28V
REFIN1, GATE, OD, FBLDO to GND (MAX1541).....-0.3V to +6V
FBLANK, CC1 to GND (MAX1541).............-0.3V to (V
CC
+ 0.3V)
DL_ to GND (Note 1)..................................-0.3V to (V
DD
+ 0.3V)
CSN_ to GND ............................................................-2V to +30V
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.
Note 1:
For the MAX1540A, the gate-driver input supply (V
DD
) is internally connected to the fixed 5V linear-regulator output
(LDOOUT), and the linear-regulator input supply (LDOIN) is internally connected to the battery voltage input (V+).
DH_ to LX_..................................................-0.3V to (BST + 0.3V)
LX_ to GND................................................................-2V to +30V
BST_ to LX_..............................................................-0.3V to +6V
REF Short Circuit to GND...........................................Continuous
Continuous Power Dissipation (T
A
= +70
°
C)
32-Pin 5mm x 5mm Thin QFN (derated 21.3mW/
°
C
above +70
°
C).............................................................1702mW
40-Pin 6mm x 6mm Thin QFN (derated 26.3mW/
°
C
above +70
°
C).............................................................2105mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS
(V+ = 15V, V
CC
= V
DD
= ON1 = ON2 = 5V,
SKIP
= GND, LDOIN (MAX1541) = V+,
T
A
= 0°C to +85°C
, unless otherwise noted. Typical
values are at T
A
= +25
°
C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT SUPPLIES (Note 1)
MAX1540A: battery voltage, V+ > V
LDOOUT
MAX1541: battery voltage, V+ > V
LDOOUT
V
CC,
V
DD
(MAX1541)
MAX1541: LDO input supply,
V
LDOIN
> V
LDOOUT
5.5
2
4.5
28
28
5.5
V
IN
V
BIAS
Input Voltage Range
V
LDOIN
4.5
28
V
FB1 and FB2 forced above the regulation
point, LSAT = GND
0.7
1.5
Quiescent Supply Current (V
CC
)
I
CC
FB1 and FB2 forced above the regulation
point, ON1 or ON2 = V
CC
, V
LSAT
> 0.5V
1.8
mA
Quiescent Supply Current
(V
DD
, MAX1541 Only)
I
DD
FB1 and FB2 forced above the regulation
point, ON1 or ON2 = V
CC
<1
5
μA
MAX1540A: FB1 and FB2 forced above the
regulation point, ON1 or ON2 = V
CC
,
V
LDOON
= V+ = 28V
150
Quiescent Supply Current (V+)
I
V+
MAX1541: ON1 or ON2 = V
CC
,
V
LDOON
= V+ = 28V
25
40
μA
Quiescent Supply Current
(LDOIN, MAX1541 Only)
I
LDOIN
FB1 and FB2 forced above the regulation
point, ON1 or ON2 = V
CC
,
V
LDOON
= V+ = 28V
110
μA
Standby Supply Current (V
CC
)
ON1 = ON2 = GND, V
LDOON
= V+ = 28V
<1
5
μA
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1540AETJ+ 功能描述:DC/DC 開關(guān)控制器 Dual Step-Down Ctlr w/Saturation Prot 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
MAX1540AETJ+T 功能描述:DC/DC 開關(guān)控制器 Dual Step-Down Ctlr w/Saturation Prot 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
MAX1540ETJ 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
MAX1540ETJ+ 功能描述:DC/DC 開關(guān)控制器 Dual Step-Down Ctlr 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
MAX1540ETJ+T 功能描述:DC/DC 開關(guān)控制器 Dual Step-Down Ctlr 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
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