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FAN2002 数据表(PDF) 4 Page - Fairchild Semiconductor

部件名 FAN2002
功能描述  1A High-Efficiency Step-Down DC-DC Converter
Download  11 Pages
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

FAN2002 数据表(HTML) 4 Page - Fairchild Semiconductor

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FAN2001/FAN2002 Rev. 1.0.2
Electrical Characteristics
Notes:
5. Refer to the application section for further details.
6. For output voltages
≤ 1.2V a 40µF output capacitor value is required to achieve a maximum output accuracy of 3% while operating in power save
mode (PFM mode).
VIN = VOUT + 0.6V(min. 2.5V) to 5.5V, IOUT = 350mA, VOUT =1.2V, EN = VIN, TA = -40°C to +85°C,
Unless otherwise noted. Typical values are at TA = 25°C.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
VIN
Input Voltage
0 mA
≤ IOUT ≤ 600 mA
2.5
5.5
V
0 mA
≤ IOUT ≤ 1000 mA
2.7
5.5
V
IQ
Quiescent Current
IOUT = 0mA, Device is not switching
20
35
µA
IOUT = 0mA, Device is
switching (Note 5)
R2 =10K
50
µA
R2 =100K
25
µA
Shutdown Supply Current
EN = GND
0.1
1
µA
Undervoltage
Lockout
Threshold
VIN Rising
1.9
2.1
2.3
V
Hysteresis
150
mV
VENH
Enable High Input Voltage
1.3
V
VENL
Enable Low Input Voltage
0.4
V
IEN
EN input bias current
EN = VIN or GND
0.01
0.1
µA
RDS-ON
PMOS On Resistance
VIN = VGS = 5.5V
250
350
m
VIN = VGS = 2.5V
300
400
NMOS On Resistance
VIN = VGS = 5.5V
200
300
m
VIN = VGS = 2.5V
250
350
ILIM
P-channel current limit
2.5V < VIN < 5.5V
1300
1500
2000
mA
Oscillator frequency
1000
1300
1500
KHz
Ilkg_(N)
N-channel leakage current
VDS = 5.5V
0.1
1
µA
Ilkg_(P)
P-channel leakage current
VDS = 5.5V
0.1
1
µA
Line regulation
IOUT ≤ 10 mA
0.16
%/V
Load regulation
350 mA
≤ IOUT ≤ 1000 mA
0.15
%
Vref
Reference Voltage
0.8
V
Output DC Voltage Accuracy
(Note 6)
0 mA
≤ IOUT ≤ 1000 mA
-3
+3
%
Over-Temperature Protection PWM Mode Only
350 mA
≤ IOUT ≤ 1000 mA
Rising
Temperature
150
°C
Hysteresis
20
°C
Start-Up Time
IOUT = 1000 mA, COUT = 20 µF
800
µS


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