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參數(shù)資料
| 型號(hào)： | L5973D |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開(kāi)關(guān)穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 2/13頁(yè) |
| 文件大?。?/td> | 166K |
| 代理商： | L5973D |
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L5973AD
2/13
THERMAL DATA
(*) Package mounted on board
PIN CONNECTION
PIN DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
R
th (j-amb)
Thermal Resistance Junction to ambient
Max.
40 (*)
°C/W
N.
Name
Description
1
OUT
Regulator Output.
2
SYNC
Master/Slave Synchronization. When it is open, a signal synchronous with the turn-off of the inter-
nal power is present at the pin. When connected to an external signal at a frequency higher than
the internal one, then the device is synchronized by the external signal.
Connecting together the SYNC pin of two devices, the one with the higher frequency works as
master and the other one, works as slave.
3
INH
A logical signal (active high) disables the device. With IHN higher than 2.2V the device is OFF and with
INH lower than 0.8V, the device is ON.
If INH is not used the pin must be grounded. When it is open, an internal pull-up disables the device.
4
COMP
E/A output to be used for frequency compensation.
5
FB
Stepdown feedback input. Connecting the output voltage directly to this pin results in an output
voltage of 1.235V. An external resistor divider is required for higher output voltages (the typical
value for the resistor connected between this pin and ground is 4.7K).
6
V
REF
Reference voltage of 3.3V. No filter capacitor is needed to stability.
7
GND
Ground.
8
V
CC
Unregulated DC input voltage.
Symbol
Parameter
Value
Unit
V
8
Input Voltage
40
V
V
1
Output DC voltage
Output peak voltage at t = 0.1
μ
s
Maximum output current
-1 to 40
-5 to 40
V
V
I
1
int. limit.
V
4
, V
5
V
3
V
2
P
tot
T
j
T
stg
Analog pins
4
V
INH
-0.3V to V
CC
-0.3 to 4
SYNC
V
Power dissipation at T
amb
≤
60°C
Operating junction temperature range
2.25
W
-40 to 150
°C
Storage temperature range
-55 to 150
°C
OUT
SYNC
INH
COMP
1
3
2
4
VCC
VREF
GND
FB
8
7
6
5
D98IN955
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| L5974ADTR | 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 2A SD switch reg BCD5 220nF 5V RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L5974D | 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 2.5A SD switch reg BCD5 220nF 5V RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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