參數(shù)資料
型號: LT1500IS-3
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述: 1.3 A SWITCHING REGULATOR, 500 kHz SWITCHING FREQ-MAX, PDSO14
封裝: 0.150 INCH, PLASTIC, SO-14
文件頁數(shù): 6/16頁
文件大?。?/td> 190K
代理商: LT1500IS-3
6
LT1500/LT1501
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
Peak-to-Peak Inductor Ripple
Current
220
V
IN
= 3.3V
V
OUT
= 5V
L
μ
H
NOTE THAT RIPPLE CURRENT
INCREASES WITH SMALLER
INDUCTORS DUE TO
PROPAGATION DELAY
IN THE CURRENT
COMPARATOR
AVERAGE SWITCH CURRENT
0
200
180
160
140
120
100
80
0.3
0.5
LT1500/01 TPC07
0.1
0.2
0.4
0.6
0.7
P
Switch Saturation Voltage
1.0
T
J
= 25
°
C
SWITCH CURRENT (A)
0
S
0.8
0.6
0.4
0.2
0
0.8
LT1500/01 TPC06
0.2
0.4
0.6
1.0
INPUT VOLTAGE (V)
0
L
120
100
80
60
40
20
0
2
4
6
8
LT1500/01 TPC01
10
12
T
J
= 25
°
C
LOAD CURRENT IS
REDUCED UNTIL Burst
Mode OPERATION STARTS
V
OUT
= 3.3V
V
OUT
= 5V
V
OUT
= 12V
Burst Mode Threshold
SINK CURRENT (mA)
0
V
0.6
0.5
0.4
0.3
0.2
0.1
0
1
2
3
4
LT1500/01 TPC02
5
6
T
J
= 25
°
C
V
LBI
1.2V
Low-Battery Output Saturation
Voltage
Quiescent Input Supply Current
INPUT VOLTAGE (V)
0
S
μ
A
15
25
LT1500/01 TPC04
5
10
20
400
350
300
250
200
150
100
50
0
T
J
= 25
°
C
V
OR V
HELD 5% HIGH,
SO THAT Burst Mode
OPERATION IS ACTIVATED.
DOES NOT INCLUDE
OUTPUT DIVIDER CURRENT
INPUT VOLTAGE (V)
0
C
μ
A
20
16
12
8
4
0
20
LT1500/01 TPC03
5
10
15
25
T
J
= 25
°
C
V
SHDN
= 0V
Input Current in Shutdown
Shutdown Input Current vs
Feedback Pin Voltage
140
T
J
= 25
°
C
V
= 5V
ADJUSTABLE PARTS ONLY.
FIXED VOLTAGE PARTS DO
NOT SHOW SHUTDOWN
CURRENT INCREASE WITH
FEEDBACK VOLTAGE
FEEDBACK PIN VOLTAGE (V)
0
120
100
80
60
40
20
0
0.6
1.0
LT1500/01 TPC05
0.2
0.4
0.8
1.2
1.4
C
μ
A
相關(guān)PDF資料
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LT1500IS-5 RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
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