參數(shù)資料
型號(hào)： MC33998
廠(chǎng)商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： Switching Power Supply with Linear Regulators(帶線(xiàn)性穩(wěn)壓器的開(kāi)關(guān)電源)
中文描述： 開(kāi)關(guān)電源與線(xiàn)性穩(wěn)壓器（帶線(xiàn)性穩(wěn)壓器的開(kāi)關(guān)電源）
文件頁(yè)數(shù)： 7/20頁(yè)
文件大?。?/td> 437K
代理商： MC33998
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
33998
7
STATIC ELECTRICAL CHARACTERISTICS (continued)
Characteristics noted under conditions 9.0 V
≤
V
PWR
≤
16 V, -40
°
C
≤
T
J
= T
A
≤
125
°
C, using the typical application circuit (see
Figure 8
) unless otherwise noted. Typical values noted reflect the approximate parameter mean at T
A
= 25
°
C under nominal
conditions unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
LINEAR REGULATOR V
DDL
V
DDL
Output Voltage
V
PWR
= KA_V
PWR
= 14 V, I
VDDL
= 200 mA
V
DDL
2.5
2.6
2.7
V
V
DDL
Line Regulation
V
DDH
= 4.8 V to 5.2 V, I
VDDL
= 400 mA
RegLn
VDDL
-30
–
30
mV
V
DDL
Load Regulation
V
PWR
= KA_V
PWR
= 14 V, I
VDDL
= 10 mA to 400 mA
RegLd
VDDL
-70
–
70
mV
DRVL Output Current
V
PWR
= KA_V
PWR
= 14 V, VDRVL = 1.0 V
I
DRVL
5.0
11
25
mA
V
DDL
Active Discharge Resistance
V
PWR
= KA_V
PWR
= 14 V, EN = 0 V, I
FBL
= 10 mA
R
LDisch
1.0
–
10
V
DDH
to V
DDL
Active Clamp Resistance
V
PWR
= KA_V
PWR
= 14 V, EN = 0 V, I
VDDH
= 50 mA, V
FBKB
= 0 V
R
CLAMP
0.6
–
10
V
DDL
Output Capacitor Capacitance (Note 12)
C
VDDL
–
68
–
μ
F
V
DDL
Output Capacitor ESR (Note 12)
ESR
VDDL
–
0.125
–
KEEP-ALIVE (STANDBY) REGULATOR V
KAM
V
KAM
Output Voltage
I
VKAM
= 5.0 mA, VPWR = KA_V
PWR
= 18 V, EN = 5.0 V
V
KAM
2.5
–
2.7
V
V
KAM
Output Voltage, EN = 0 V (Standby Mode)
V
PWR
= KA_V
PWR
= 26 V, I
VKAM
= 0.5 mA
V
PWR
= KA_V
PWR
= 18 V, I
VKAM
= 5.0 mA
V
PWR
= KA_V
PWR
= 5.0 V, I
VKAM
= 10.0 mA
V
PWR
= 0 V, KA_V
PWR
= 3.5 V, I
VKAM
= 5.0 mA
V
KAM
2.5
2.5
2.5
2.0
–
–
–
–
2.7
2.7
2.7
2.7
V
V
KAM
Line Regulation, EN = 0 V (Standby Mode)
V
PWR
= KA_V
PWR
= 5.0 V to 18 V, I
VKAM
= 2.0 mA
RegLn
VKAM
-20
–
20
mV
V
KAM
Load Regulation, EN = 0 V (Standby Mode)
V
PWR
= KA_V
PWR
= 14 V, I
VKAM
= 1.0 mA to 10 mA
RegLd
VKAM
0
–
100
mV
Differential Voltage V
KAM
- V
DDL
EN = 5.0 V, I
VKAM
= 5.0 mA, V
PWR
= KA_V
PWR
= 14 V, I
VDDL
= 200 mA
Reg
VKAM
-20
–
60
mV
V
KAM
Output Capacitor Capacitance (Note 12)
C
VKAM
–
4.7
–
μ
F
V
KAM
Output Capacitor ESR (Note 12)
ESR
VKAM
–
1.4
–
Notes
12.
Recommended value.
F
Freescale Semiconductor, Inc.
Go to: www.freescale.com
n
.
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