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參數(shù)資料
| 型號： | LT1054CN8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Switched-Capacitor Voltage Converter with Regulator |
| 中文描述： | SWITCHED CAPACITOR REGULATOR, 25 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 2/26頁 |
| 文件大?。?/td> | 444K |
| 代理商： | LT1054CN8 |
SLVS033F FEBRUARY 1990 REVISED NOVEMBER 2004
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
functional block diagram
VREF
Ref
+
OSC
Q
Q
Drive
CAP +
VCC
GND
VOUT
FB/SD
OSC
2.5 V
CAP
COUT
5
CIN
External capacitors
Pin numbers shown are for the P package.
Drive
Drive
Drive
R
R
1
7
3
2
4
8
6
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
(see Note 1)
Input voltage range, V
I
: FB/SD
16 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Junction temperature, T
J
(see Note 2): LT1054C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LT1054I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θ
JA
(see Notes 3 and 4): DW package
0 V to V
CC
0 V to V
ref
125
°
C
135
°
C
57
°
C/W
85
°
C/W
55
°
C to 150
°
C
OSC
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
P package
Storage temperature range, T
stg
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. The absolute maximum supply-voltage rating of 16 V is for unregulated circuits. For regulation-mode circuits with VOUT
≤
15 V, this
rating may be increased to 20 V.
2. The devices are functional up to the absolute maximum junction temperature.
3. Maximum power dissipation is a function of TJ(max),
θ
JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) TA)/
θ
JA. Operating at the absolute maximum TJ of 150
°
C can impact reliability.
4. The package thermal impedance is calculated in accordance with JESD 51-7.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
recommended operating conditions
MIN
MAX
UNIT
VCC
Supply voltage
3.5
15
V
TA
Operating free-air temperature range
LT1054C
LT1054I
0
70
85
°
C
40
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