FAN5601 Datasheet, PDF (4/14 Pages) Fairchild Semiconductor – Regulated Step-Down Charge Pump DC/DC Converter

PRODUCT SPECIFICATION
FAN5601
Electrical Characteristics
V_IN = 2.2V to 5.5V, I_OUT = 1mA, C_B = 1µF, C_IN = 10µF, C_OUT = 10µF, T_A = -40°C to +85°C, typical values measured
at T_A = 25°C, unless otherwise noted.
Parameter
Conditions
Min.
Typ.
Max. Units
Input Undervoltage Lockout
1.9
2.0
2.17
V
Output Voltage
Vnom
V
Output Voltage Accuracy
Output Voltage Temperature Coefficient
Load Regulation
T_A = 25°C, V_IN = 3.3V
-2
V_IN = 3.3V
-2.5
V_IN = 3.3V
25
0.133
+2
%
+2.5
%
ppm
mV/mA
Line Regulation
No load Supply Current (Note 4)
Shutdown Supply Current
Output Short-circuit Current (Note 5)
Efficiency
V_IN at Configuration Change
T_A = 25°C
I_OUT = 0mA,
V_IN = 2.2V
ENABLE =GND.
V_OUT = 0
V_OUT = GND.
V_IN = 2.35 × V_OUT
I_OUT =150mA
From 2:1 to 1:1 mode
1.35
2
mV/V
30
60
µA
0.1
1
µA
25
mA
85
%
2.22 x
V
Vnom
Oscillator Frequency
2.0
MHz
Thermal Shutdown Threshold
Thermal Shutdown Threshold Hysteresis
150
°C
15
°C
ENABLE Logic Input High Voltage, V_IH
V_IN = 2.2V to 5.5V
1.3
V
ENABLE Logic Input Low Voltage, V_IL
V_IN = 2.2V to 5.5V
0.4
V
ENABLE Logic Input Current
ENABLE = V_IN or GND -1
1
µA
V_OUT Turn On Time
V_IN = 3.6V, I_OUT = 0mA,
1
mS
10% to 90%
Notes:
4. No load supply current is measured when the oscillator is off.
5. The short circuit protection is designed to protect against pre-existing short circuit conditions, i.e. assembly shorts that exist
prior to device power-up. The short circuit current limit is 25mA_Average. Short circuit currents in normal operation are inherently
limited by the ON-resistance of internal device. Since this resistance is in the range of 1Ω, in some cases thermal shutdown
may occur. However, immediately following the first thermal shutdown event, the short circuit condition will be treated as pre-
existing, and the load current will reduce to 25mA_Average.
4
REV. 1.0.4 4/4/05