參數(shù)資料
型號(hào): LTC1981ES5
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Single and Dual Micropower High Side Switch Controllers in SOT-23
中文描述: SWITCHED CAPACITOR REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO5
封裝: PLASTIC, SOT-23, 5 PIN
文件頁數(shù): 4/8頁
文件大小: 154K
代理商: LTC1981ES5
LTC1981/LTC1982
4
TYPICAL PERFOR AU
SUPPLY VOLTAGE (V)
2.0
T
μ
s
1982 G06
1.5
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
400
350
300
250
200
150
100
50
0
C
GATE
= 1000pF
T
A
°
C
V
GS
= 2V
V
GS
= 1V
SUPPLY VOLTAGE (V)
2.0
T
μ
s
1982 G07
1.5
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
40
35
30
25
20
15
10
5
0
C
GATE
= 1000pF
T
°
C
TIME FOR V
GATE
< 0.1V
TEMPERATURE (
°
C)
–60
G
7.50
7.45
7.40
7.35
7.30
7.25
7.20
7.15
7.10
7.05
7.00
–20
20
40
1982 G08
–40
0
60
80
100
V
CC
= 3.3V
Turn-Off Time (LTC1982)
Turn-On Time (LTC1982)
GATE Drive Voltage vs
Temperature
Turn-On Time (LTC1981)
GATE Drive Current (LTC1981)
Turn-Off Time (LTC1981)
GATE DRIVE VOLTAGE (V)
0
1
100
10
1
0.1
2
3
4
5
6
7
8
G
μ
A
1981/82 G09
V
CC
= 2.7V
V
CC
= 1.8V
V
CC
= 5V
V
CC
= 3.3V
SUPPLY VOLTAGE (V)
1.5
T
μ
s
2.5
3.5 4.0
6.0
1981/82 G10
2.0
3.0
4.5 5.0 5.5
300
250
200
150
100
50
0
C
GATE
= 1000pF
T
A
°
C
V
GS
= 2V
V
GS
= 1V
SUPPLY VOLTAGE (V)
1.5
0
T
μ
s
5
15
20
25
2.5
3.5 4.0
6.0
1981/82 G11
10
2.0
3.0
4.5 5.0 5.5
C
GATE
=1000pF
T
°
C
TIME FOR V
GATE
< 0.1
PI
FU
CTIO
N
S
U
U
LTC1981:
GDR (Pin 1):
Gate Drive Ready Active High Open Drain
Output. Used to indicate when the gate drive output is
greater than 90% of its final value.
GND (Pin 2):
Ground.
SHDN (Pin 3):
SHDN Active Low Input. Used to shut down
the part and force the GATE output pin to ground.
GATE (Pin 4):
Gate Drive Output to an External High Side
Switch. Fully enhanced by internal charge pump. Con-
trolled by the SHDN input pin. Output voltage on this pin
will be approximately 2.5 times V
CC
or 7.25V, whichever is
less.
V
CC
(Pin 5):
Input Supply Voltage. Range from 1.8V to
5.5V.
LTC1982:
SHDN 1 (Pin 1):
SHDN 1 Active Low Input. Used to shut
down the GATE 1 charge pump and force the GATE 1
output pin to ground.
GND (Pin 2):
Ground.
SHDN 2 (Pin 3):
SHDN 2 Active Low Input. Used to shut
down the GATE 2 charge pump and force the GATE 2
output pin to ground.
相關(guān)PDF資料
PDF描述
LTC1982 Single and Dual Micropower High Side Switch Controllers in SOT-23
LTC1983-3 100mA REGULATED CHARGE-PUMP INVERTERS IN THINSOT
LTC1983ES6-3 100mA REGULATED CHARGE-PUMP INVERTERS IN THINSOT
LTC1983ES6-5 100mA REGULATED CHARGE-PUMP INVERTERS IN THINSOT
LTPC 100mA REGULATED CHARGE-PUMP INVERTERS IN THINSOT
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