FAN5355(2010) View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
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FAN5355 Datasheet PDF : 26 Pages
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Electrical Specifications
VIN = 3.6V, EN = VIN, VSEL = VIN, SYNC = GND, VSEL0(6) bit = 1, CONTROL2[4:3] = 00. TA = -40°C to +85°C, unless otherwise
noted. Typical values are at TA = 25°C. Circuit and components according to Figure 1.
Symbol Parameter
Conditions
Power Supplies
VIN
Input Voltage Range
IQ
Quiescent Current
ISD
Shutdown Supply Current
VUVLO Under-Voltage Lockout Threshold
VUVHYST Under-Voltage Lockout Hysteresis
ENABLE, VSEL, SDA, SCL, SYNC
IO = 0mA, PFM Mode
IO = 0mA, 3MHz PWM Mode
EN = GND
EN = VIN, EN_DCDC bit = 0,
SDA = SCL = VIN
VIN Rising
VIN Falling
VIH
HIGH-Level Input Voltage
VIL
LOW-Level Input Voltage
IIN
Input Bias Current
Input tied to GND or VIN
Power Switch and Protection
RDS(ON)P
P-Channel MOSFET On Resistance
VIN = 3.6V, CSP Package
VIN = 3.6V, MLP Package
VIN = 2.7V, MLP Package
ILKGP P-Channel Leakage Current
VDS = 6V
RDS(ON)N
N-Channel MOSFET On Resistance
VIN = 3.6V, CSP Package
VIN = 3.6V, MLP Package
VIN = 2.7V, MLP Package
ILKGN N-Channel Leakage Current
VDS = 6V
RDIS
Discharge Resistor for Power-Down
Sequence
Options 03 and 06
ILIMPK P-MOS Current Limit
TLIMIT Thermal Shutdown
THYST Thermal Shutdown Hysteresis
Frequency Control
2.7V ≤ VIN ≤ 4.2V, Options 00 and 02
2.7V ≤ VIN ≤ 5.5V, Options 00 and 02
2.7V ≤ VIN ≤ 4.2V, Options 03 and 06
2.7V ≤ VIN ≤ 5.5V, Options 03 and 06
fSW
fSYNC
DSYNC
Oscillator Frequency
Synchronization Range
Synchronization Duty Cycle
Min. Typ. Max. Units
2.7
5.5
V
37
50
μA
4.8
mA
0.1
2.0
μA
0.1
2.0
2.40 2.60
V
2.00
2.15 2.30
V
200
250
300
mV
1.2
V
0.4
V
0.01 1.00
μA
145
165
mΩ
200
1
μA
75
95
mΩ
101
1
μA
60
120
Ω
1150 1350 1600
1050 1350 1600
mA
1350 1550 1800
1250 1550 1800
150
°C
20
°C
2.65
3.00 3.35
2.7
3.0
3.3
20
80
MHz
MHz
%
Continued on the following page…
© 2008 Fairchild Semiconductor Corporation
5
FAN5355 • Rev. 1.0.6
www.fairchildsemi.com
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