FAN5069_08 Datasheet, PDF (6/22 Pages) Fairchild Semiconductor – PWM and LDO Controller Combo

Electrical Characteristics (Continued)
Unless otherwise noted, V_CC = 5V, T_A = 25°C, using circuit in Figure 1.
The ‘•’ denotes that the specifications apply to the full ambient operating temperature range. See Notes 4 and 5.
Symbol
Parameter
Conditions
Protection/Disable
I_LIM
I_SWPD
V_UV
ILIMIT Source Current
SW Pull-down Current
Under-Voltage Threshold
SW = 1V, EN = 0V
As % of set point; 2μS noise fil- •
ter
V_OV Over-Voltage Threshold
As % of set point; 2μS noise fil- •
ter
TSD Thermal Shutdown
Enable Threshold Voltage Enable Condition
•
Enable Threshold Voltage Disable Condition
•
LDO⁽⁷⁾
Enable Source Current
V_CC = 5V
V_LDOREF Reference Voltage (mea- T_A = 0°C to 70°C
•
sured at FBLDO pin) _{TA = -40°C to 85°C}
•
Regulation
0A ≤ I_LOAD ≤ 5A
•
V_{LDO_DO} Drop out Voltage
I_LOAD ≤ 5A and R_DS-ON < 50mΩ
External Gate Drive
V_CC = 4.75V
•
V_CC = 5.6V
•
Gate Drive Source Current
Gate Drive Sink Current
Min.
9
65
110
2.0
775
770
1.17
Typ.
10
2
75
115
160
50
800
800
1.2
1.2
400
Max. Unit
11
μA
mA
80
%
120
%
°C
V
0.8
V
μA
825
mV
830
mV
1.23
V
0.3
V
4.5
V
5.3
V
mA
μA
Notes:
4. All limits at operating temperature extremes are guaranteed by design, characterization, and statistical quality
control.
5. AC specifications guaranteed by design/characterization (not production tested).
6. For a case when V_CC is higher than the typical 5V V_CC; voltage observed at VCC pin when the internal shunt
regulator is sinking current to keep voltage on VCC pin constant.
7. Test Conditions: V_{LDO_IN} = 1.5V and V_{LDO_OUT} = 1.2V
© 2005 Fairchild Semiconductor Corporation
FAN5069 Rev. 1.1.5
6
www.fairchildsemi.com