FAN21SV06_12 Datasheet, PDF (6/17 Pages) Fairchild Semiconductor – TinyBuck™ 6 A, 24V Single-Input Integrated Synchronous Buck Regulator with Synchronization Capability

Electrical Characteristics (Continued)
Recommended operating conditions using the circuit in Figure 1 with V_IN, VIN_Reg=12 V, unless otherwise noted.
Parameter
Conditions
Control Functions
EN Threshold, Rising
EN Hysteresis
EN Pull-Up Current
EN Discharge Current
VIN_Reg >6.5 V
Auto-Restart Mode, VIN_Reg>6.5 V
FB OK Drive Resistance
PGOOD LOW Threshold
PGOOD Low Voltage
PGOOD Leakage Current
Protection and Shutdown
Current Limit
I_LIM Current
Over-Temperature Shutdown
Over-Temperature Hysteresis
Over-Voltage Threshold
Under-Voltage Shutdown
Fault-Discharge Threshold
Fault-Discharge Hysteresis
FB < V_REF, 2 Consecutive Clock Cycles⁽³⁾
FB > V_REF, 2 Consecutive Clock Cycles⁽³⁾
I_OUT < 2 mA
V_PGOOD=5 V
R_ILIM Open, fsw=500 KHz,, V_OUT=1.8 V,
Rramp=200 kΩ, 16 Consecutive Clock
Cycles⁽³⁾
VIN_Reg > 6.5 V, 25°C
Internal Temperature
2 Consecutive Clock Cycles⁽³⁾
16 Consecutive Clock Cycles⁽³⁾
Measured at FB pin
Measured at FB pin (V_FB ~50 mV)
Note:
3. Delay times are not tested in production. Guaranteed by design.
Min.
-8
-14.5
+6.5
Typ. Max. Units
1.35
250
-6
1
800
-11.0
+10.0
0.2
2.00
-4
1000
-8.0
+13.5
0.4
1.0
V
mV
µA
µA
KΩ
%V_REF
%V_REF
V
µA
7
9
11
A
-11
-10
-9
µA
155
°C
30
°C
110
115
120 %V_OUT
68
73
78
%V_OUT
250
mV
250
mV
© 2006 Fairchild Semiconductor Corporation
FAN21SV06 Rev. 1.0.3
6
www.fairchildsemi.com