ILC6375 查看數據表（PDF） - Impala Linear Corporation
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ILC6375 Datasheet PDF : 4 Pages
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1 Amp SOT-89 Step Down PWM Switcher Controller
Electrical Characteristics ILC6375CP-33
o
VOUT = 3.3V FOSC = 100kHz TA = 25 C,unless otherwise specified, VIN = 4V, I OUT = 55mA, See test circuit, figure 1.
Parameter
Output Voltage
Input Voltage
Supply Current 1
Supply Current 2
EXT “High” ON Resistance
EXT “Low” ON Resistance
Oscillator Frequency
Maximum Duty Ratio
Efficiency
Soft Start Time
Symbol
VOUT
VIN
IDD 1
IDD 2
REXTH
REXTL
FOSC
MAXDTY
EFFI
TSS
Conditions
3V applied to VOUT with no
external components
3.6V applied to VOUT with no
external components
3.6V applied to VOUT with no
external components,VEXT = 3.6V
3V applied to VOUT with no
external components, VEXT = 0.4V
Measure Frequency at EXT pin
Measure Duty Cycle at EXT pin
Min
3.218
Typ
3.300
20
Max
3.383
10
33
16 27
57 95
46 76
85 100 115
100
90
10
Units
V
V
µA
µA
Ω
Ω
kHz
%
%
ms
Applications Circuits
Tr
CI N +
VIN
RB
( 5V to 10V )
3
2
1
ILC6375
4
5
G ND
L
VOU T
( 5V )
SD
+
CL
Figure 1: ILC6375 Typical Application
L:
100mH (SUMIDA CD-54)
SD: Shottkey Diode (MATSUSHITA MA735
CIN: 10mF/16V Tantalum Capacitor (NICHICON F93)
CL: 47mF/10V Tantalum Capacitor (NICHICON F93)
Tr: PNP Transistor (TOSHIBA 2SA1213)
RB
1kΩ
Impala Linear Corporation
ILC6375 1.1
(408) 574-3939 www.impalalinear.com
June 1999 3
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