- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385501 > LT1622 (Linear Technology Corporation) Low Input Voltage Current Mode Step-Down DC/DC Controller(低輸入電壓，電流模式步降DC/DC控制器) PDF資料下載
參數(shù)資料
| 型號： | LT1622 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Low Input Voltage Current Mode Step-Down DC/DC Controller(低輸入電壓，電流模式步降DC/DC控制器) |
| 中文描述： | 低輸入電壓電流模式降壓DC / DC控制器（低輸入電壓，電流模式步降直流/直流控制器） |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 223K |
| 代理商： | LT1622 |
3
LTC1622
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 4.2V
SYMBOL
PDRV t
r
PDRV t
f
V
SENSE(MAX)
PARAMETER
Gate Drive Rise Time
Gate Drive Fall Time
Maximum Current Sense Voltage
CONDITIONS
C
LOAD
= 3000pF
C
LOAD
= 3000pF
MIN
TYP
80
100
110
MAX
140
140
140
UNITS
ns
ns
mV
G
80
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
T
J
is calculated from the ambient temperature T
A
and power
dissipation P
D
according to the following formula:
LTC1622CS8; T
J
= T
A
+ (P
D
150
°
C/W),
LTC1622CMS8; T
J
= T
A
+ (P
D
250
°
C/W)
Note 3:
The LTC1622 is tested in a feedback loop that servos V
FB
to the
feedback point for the error amplifier (V
ITH
= 0.8V).
Note 4:
Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
TYPICAL PERFOR
M
A
N
CE CHARACTERISTICS
SUPPLY VOLTAGE (V)
2
3
S
μ
A
10
1622 G01
4
5
6
7
8
9
45
40
35
30
25
20
15
10
5
0
DUTY CYCLE (%)
20
30
T
100
1622 G03
40
50
60
70
80
90
110
100
90
80
70
60
50
40
30
V
IN
= 4.2V
UNSYNC
TEMPERATURE (
°
C)
–55 –35
U
125
1622 G06
–15
5
25
45
65
85 105
2.10
2.05
2.00
1.95
1.90
1.85
1.80
1.75
RUN/SS Current vs Supply Voltage
SUPPLY VOLTAGE (V)
2
S
μ
A
8
1622 G02
4
6
10
3.50
3.00
2.50
2.00
1.50
1.00
3
5
7
9
TEMPERATURE (
°
C)
–55 –35
R
125
1622 G05
–15
5
25
45
65
85 105
0.810
0.805
0.800
0.795
0.790
0.785
0.780
0.775
V
IN
= 4.2V
Shutdown Current
vs Supply Voltage
Maximum Current Sense Voltage
vs Duty Cycle
Undervoltage Lockout Voltage
vs Temperature
Reference Voltage
vs Temperature
TEMPERATURE (
°
C)
–55 –35
N
125
1622 G04
–15
5
25
45
65
85 105
10.0
7.5
5.0
2.5
0
–2.5
–5.0
–7.5
–10.0
V
IN
= 4.2V
Normalized Oscillator Frequency
vs Temperature
The
G
denotes specifications which apply over the full operating
相關PDF資料 |
PDF描述 |
|---|---|
| LT1632 | 45MHz, 45V/us, Dual/Quad Rail-to-Rail Input and Output Precision Op Amps |
| LT1632CN8 | 45MHz, 45V/us, Dual/Quad Rail-to-Rail Input and Output Precision Op Amps |
| LT1632CS8 | 45MHz, 45V/us, Dual/Quad Rail-to-Rail Input and Output Precision Op Amps |
| LT1633 | 45MHz, 45V/us, Dual/Quad Rail-to-Rail Input and Output Precision Op Amps |
| LT1633CS | 45MHz, 45V/us, Dual/Quad Rail-to-Rail Input and Output Precision Op Amps |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1624IS8 | 制造商:Linear Technology 功能描述: |
| LT-1625S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:T1/CEPT/ISDN-PRI TRANSFORMER |
| LT1627 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower Low Dropout Regulators with Shutdown |
| LT1629 | 制造商:EDSYN 功能描述: |
| LT1630 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:30MHz, 10V/us, Dual/Quad Rail-to-Rail Input and Output Precision Op Amps |
發(fā)布緊急采購，3分鐘左右您將得到回復。