參數(shù)資料
型號: MAX774
廠商: Maxim Integrated Products, Inc.
英文描述: High-Efficiency, Low I Q Inverting DC-DC Controllers(可調(diào),高效率,低IQ值,DC-DC控制器)
中文描述: -5V/-12V/-15V或可調(diào)、高效率、低IQ、反相、DC-DC控制器
文件頁數(shù): 8/16頁
文件大?。?/td> 204K
代理商: MAX774
M
-5V/-12V/-15V or Adjustable,
High-Efficiency, Low I
Q
Inverting DC-DC Controllers
8
_______________________________________________________________________________________
______________________________________________________________Pin Desc ription
PIN
NAME
FUNCTION
1
OUT
2
FB
3
SHDN
4
REF
1.5V reference output that can source 100
μ
A. Bypass to ground with 0.1
μ
F.
5
V+
Positive power-supply input
6
CS
Noninverting input to the current-sense comparator. Typical trip level is 210mV (relative to V+).
7
EXT
The gate-drive output for an external P-channel power MOSFET. EXT swings from OUT to V+.
8
GND
Ground
The sense input for fixed-output operation (V
FB
= V
REF
). OUT is connected to the internal voltage divider,
and it is the negative supply input for the EXT driver.
Feedback input. When V
FB
= V
REF
, the output will be the factory preset value. For adjustable operation,
use an external voltage divider, as described in the Adjustable Output section.
Active-high shutdown input. With SHDN high, the part is in shutdown mode and the supply current is less
than 5
μ
A. Connect to GND for normal operation.
____________________________Typic al Operating Charac teristic s (c ontinued)
(T
A
= +25°C, unless otherwise noted.)
CIRCUIT OF FIGURE 2
V+ = 6V, V
OUT
= -5V
A: I
LOAD
, 30mA TO1A, 1A/div
B: V
OUT
, 100mV/div, AC-COUPLED
LOAD-TRANSIENT RESPONSE
100
μ
s/div
A
B
CIRCUIT OF FIGURE 2
V
OUT
= -5V, I
LOAD
= 1A
A: V+, 3V TO8V, 5V/div
B: V
OUT
, 100mV/div, AC-COUPLED
LINE-TRANSIENT RESPONSE
2ms/div
A
B
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MAX775 -5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ Inverting DC-DC Controllers
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相關代理商/技術(shù)參數(shù)
參數(shù)描述
MAX774C/D 功能描述:DC/DC 開關控制器 -5V or Adjustable High-Efficiency Low Iq Inverting DC-DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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
MAX774CPA 功能描述:DC/DC 開關控制器 5/12/15/AdjV- Inv DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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
MAX774CPA+ 制造商:Maxim Integrated Products 功能描述:Bulk 制造商:Maxim Integrated Products 功能描述:Inverting dc-dc PWM controller,MAX774CPA
MAX774CSA 功能描述:DC/DC 開關控制器 5/12/15/AdjV- Inv DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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
MAX774CSA+ 功能描述:DC/DC 開關控制器 5/12/15/AdjV- Inv DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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