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FAN2106 Datasheet, PDF (5/14 Pages) Fairchild Semiconductor – TinyBuck 6A, 24V Input Integrated Synchronous Buck Regulator
Electrical Specifications
Recommended operating conditions are the result of using the circuit shown in Figure 1 unless otherwise noted.
Parameter
Conditions
Min.
Power Supplies
VCC Current
VCC UVLO Threshold
SW = Open, FB = 0.7V, VCC = 5V,
FSW = 600KHz
Shutdown: EN=0, VCC = 5V
Power Saving Mode, VCC = 5V, FMIN
Rising VCC
4.1
Hysteresis
Power Output Section
N-Channel (Q1) RDS(ON)
N-Channel (Q2) RDS(ON)
Oscillator
VCC = 5V, 25°C
VCC = 5V, 25°C
Frequency
RT = 50KΩ
255
RT = 24KΩ
540
Minimum On-Time(2)
Ramp Amplitude, pk–pk
Minimum Off-Time(2)
16VIN, 1.8VOUT, RT = 30KΩ,
RRAMP = 200KΩ
Reference
FAN2106M, 25°C
794
Reference Voltage (VFB)
FAN2106EM, 25°C
795
Error Amplifier
DC Gain(2)
Gain Bandwidth Product(2)
Output Voltage (VCOMP)
Output Current, Sourcing
Output Current, Sinking
FB Bias Current
Protection and Shutdown
VCC = 5V
VCC = 5V
VCC = 5V
VCC = 5V, VCOMP = 2.2V
VCC = 5V, VCOMP = 1.2V
VFB = 0.8V, 25°C
80
12
0.4
1.5
0.8
-850
Current Limit
RILIM open
6
ILIM Current
-11
Over-Temperature Shutdown
Die temperature
Over-Temperature Hysteresis
Die temperature
Over-Voltage Threshold
2 consecutive clock cycles
110
Under-Voltage Shutdown
16 consecutive clock cycles
68
Fault Discharge Threshold
Measured at FB pin
Fault Discharge Hysteresis
Measured at FB pin (VFB ~500mV)
Note:
2. Specifications guaranteed by design and characterization; not production tested.
Typ. Max. Unit
8
12
mA
7
10
µA
2.2
4.5
mA
4.3
4.5
V
300
mV
30
35
mΩ
14
16
mΩ
300
345 KHz
600
660 KHz
50
65 nsec
0.53
V
100
150 nsec
800
806
mV
800
805
mV
85
15
2.2
1.2
-650
3.2
-450
dB
MHz
V
mA
mA
nA
8
10
A
-10
-9
µA
150
°C
25
°C
115
120 %VOUT
73
78
%VOUT
250
mV
250
mV
© 2006 Fairchild Semiconductor Corporation
FAN2106 Rev. 1.0.1
5
www.fairchildsemi.com