FAN5308_07 FAIRCHILD [Fairchild Semiconductor], FAN5308_07 Datasheet - Page 4

• Manufacturer Part Number: FAN5308_07
• Description: 800mA High-Efficiency Step-Down DC-DC Converter
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

© 2005 Fairchild Semiconductor Corporation
FAN5308 Rev. 1.0.2
Electrical Characteristics
V
wise noted. Typical values are at T
Notes:
4. Refer to the Application section for details.
5. For output voltages ≤ 1.2V, a 40µF output capacitor value is required to achieve a maximum output accuracy of 3%
Symbol
IN
R
V
I
I
V
lkg_(N)
V
lkg_(P)
V
while operating in power-save mode (PFM mode).
f
DS-ON
I
V
UVLO
OSC
I
I
t
= V
ENH
LIM
I
ENL
REF
SD
EN
ST
Q
IN
OUT
Input Voltage
Quiescent Current
Shutdown Supply Current
Under-Voltage Lockout
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 V
P-Channel Leakage Current V
Line Regulation
Load Regulation
Reference Voltage
Output DC Voltage
Accuracy
Over-Temperature
Protection
Start-Up Time
+ 0.6V (minimum 2.5V) to 5.5V, I
Parameter
(5)
A
= 25°C.
2.5V < V
0 mA ≤ I
I
I
is switching
EN = GND
V
Hysteresis
EN = V
V
V
V
V
I
350mA ≤ I
0mA ≤ I
PWM Mode Only
350mA ≤ I
800mA
I
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
DS
DS
= V
= V
Rising
= V
= V
OUT
= 5.5V
= 5.5V
= 0mA, Device is not switching
= 0mA, Device
= 10mA
= 800mA, C
IN
GS
GS
GS
GS
OUT
OUT
IN
= 350mA, V
or GND
OUT
OUT
= 5.5V
= 2.5V
= 5.5V
= 2.5V
< 5.5V
Conditions
(4)
≤ 800mA
≤ 800 mA
≤ 800mA
≤
OUT
4
OUT
= 20µF
R2 =10kΩ
R2 =100kΩ
Rising
Temperature
Hysteresis
=1.2V, EN = V
IN
Min.
1300
1000
2.5
1.9
1.3
-3
, T
A
= -40°C to +85°C, unless other-
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
50
25
20
20
Max.
2000
1500
0.10
350
400
300
350
5.5
1.0
2.3
0.4
+3
35
1
1
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Units
KHz
%/V
mV
mΩ
mΩ
mA
µA
µA
µA
µA
µA
µA
µA
°C
°C
µs
%
%
V
V
V
V
V