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、動態(tài)輸出和線性穩(wěn)壓器
文件頁數(shù)： 8/49頁
文件大?。?/td> 794K
代理商： MAX1540A
M
Dual Step-Down Controllers with Saturation
Protection, Dynamic Output, and Linear Regulator
8
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, V
CC
= V
DD
= ON1 = ON2 = 5V,
SKIP
= GND, LDOIN (MAX1541) = V+,
T
A
= -40°C to +85°C
, unless otherwise noted.)
(Note 4)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
5
UNITS
μA
Shutdown Supply Current (V
CC
)
Shutdown Supply Current
(V
DD
, MAX1541 Only)
ON1 = ON2 = LDOON = GND
ON1 = ON2 = LDOON = GND
5
μA
MAX1540A: ON1 = ON2 = LDOON = GND,
V+ = 28V, V
CC
= 0 or 5V
15
Shutdown Supply Current (V+)
MAX1541: ON1 = ON2 = LDOON = GND,
V+ = 28V, V
CC
= V
DD
= 0 or 5V
5
μA
Shutdown Supply Current
(LDOIN, MAX1541 Only)
LDOON = GND
10
μA
PWM CONTROLLERS
FB1 = GND
1.773
1.827
V
OUT1
Preset output,
V+ = 5.5V to 28V,
SKIP
= V
CC
FB1 = V
CC
1.182
1.218
MAX1540A Main Output-Voltage
Accuracy (OUT1) (Note 2)
V
FB1
Adjustable output, V+ = 5.5V to 28V,
SKIP
= V
CC
0.689
0.711
V
FB2 = GND
2.462
2.538
V
OUT2
Preset output,
V+ = 5.5V to 28V,
SKIP
= V
CC
FB2 = V
CC
1.477
1.523
MAX1540A Secondary Output-
Voltage Accuracy (OUT2)
(Note 2)
V
FB2
Adjustable output, V+ = 5.5V to 28V,
SKIP
= V
CC
0.689
0.711
V
REFIN1 = 0.35 x REF
REFIN1 = REF
0.689
1.97
0.711
2.03
MAX1541 Main Feedback
Voltage Accuracy (FB1)
V
FB1
V+ = 4.5V to 28V,
SKIP
= V
CC
V
FB2 = GND
2.462
2.538
V
OUT2
Preset output,
V+ = 4.5V to 28V,
SKIP
= V
CC
FB2 = V
CC
1.773
1.827
MAX1541 Secondary Output-
Voltage Accuracy (OUT2)
(Note 2)
V
FB2
Adjustable output, V+ = 4.5V to 28V,
SKIP
= V
CC
0.689
0.711
V
TON = G N D ( 620kH z)
TON = RE F ( 485kH z)
TON = op en ( 345kH z)
TON = V
CC
( 235kH z)
TON = G N D ( 460kH z)
TON = RE F ( 355kH z)
TON = op en ( 255kH z)
TON = V
CC
( 170kH z)
149
191
274
402
201
260
371
556
118
190
242
335
491
256
331
453
679
152
500
DH1 On-Time (Note 3)
t
ON1
V+ = 15V,
V
OUT1
= 1.5V
ns
DH2 On-Time (Note 3)
t
ON2
V+ = 15V,
V
OUT2
= 1.5V
ns
On-Time Tracking
Minimum Off-Time
LINEAR REGULATOR (LDO)
(Note 1)
t
ON2
with respect to t
ON1
(Note 3)
(Note 3)
%
ns
t
OFF(MIN)
0 < I
LDOOUT
< 10mA
0 < I
L D OOU T
< 100m A
4.85
4.65
5.10
5.10
MAX1540A LDO Output-Voltage
Accuracy
V
LDOOUT
ON1 = ON2 = GND,
V+ = 6V to 28V
V
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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 安裝風格: 封裝 / 箱體:CPAK
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