FAN5308 Fairchild Semiconductor, FAN5308 Datasheet - Page 4

• Manufacturer Part Number: FAN5308
• Description: 800mA High-Efficiency Step-Down DC-DC Converter
• Manufacturer: Fairchild Semiconductor

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FAN5308 Rev. 1.0.1
Electrical Characteristics
otherwise noted. Typical values are at T
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
V
Symbol
R
(PFM mode).
IN
I
I
V
V
DS-ON
lkg_(N)
lkg_(P)
Vref
I
V
I
ENH
LIM
I
ENL
EN
= V
Q
IN
OUT
Input Voltage
Quiescent Current
Shutdown Supply Current
Undervoltage
Threshold
Enable High Input Voltage
Enable Low Input Voltage
EN input bias current
PMOS On Resistance
NMOS On Resistance
P-channel current limit
Oscillator frequency
N-channel leakage current
P-channel leakage current
Line regulation
Load regulation
Reference Voltage
Output DC Voltage Accuracy
(Note 6)
Over-Temperature Protection PWM Mode Only
Start-Up Time
+ 0.6V(min. 2.5V) to 5.5V, I
Parameter
Lockout
0 mA ≤ I
I
I
switching (Note 5)
EN = GND
V
Hysteresis
EN = V
V
V
V
V
2.5V < V
V
V
I
350 mA ≤ I
0 mA ≤ I
350 mA ≤ I
I
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
DS
DS
= V
= V
Rising
= V
= V
= 5.5V
= 5.5V
= 0mA, Device is not switching
= 0mA, Device is
= 10 mA
= 800mA, C
OUT
A
IN
GS
GS
GS
GS
= 25°C.
OUT
OUT
IN
or GND
= 5.5V
= 2.5V
= 5.5V
= 2.5V
= 350mA, V
< 5.5V
OUT
OUT
≤ 800 mA
≤ 800 mA
Conditions
≤ 800 mA
≤ 800 mA
OUT
= 20µF
4
OUT
R2 =10KΩ
R2 =100KΩ
Rising
Temperature
Hysteresis
=1.2V, EN = V
Min.
1300
1000
2.5
1.9
1.3
-3
IN
, T
A
= -40°C to +85°C, Unless
Typ.
1500
1300
0.01
0.16
0.15
150
250
300
200
250
150
800
0.1
2.1
0.1
0.1
0.8
20
50
25
20
Max.
1500
2000
350
400
300
350
5.5
2.3
0.4
0.1
35
+3
1
1
1
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Units
KHz
%/V
mV
mΩ
mΩ
mA
µ
µ
µ
µ
µ
µ
µ
µS
°C
°C
%
%
V
V
V
V
V
A
A
A
A
A
A
A