STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics (continued)
Characteristics noted under conditions -40°C ≤ TA ≤ 85°C unless otherwise noted. Input voltages VIN1 = VIN2 = 3.3 V using
the typical application circuit (see Figure 33) unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
Buck Converter (continued)
High-Side Power MOSFET Q1 RDS(ON) (8), (9)
R
mΩ
mΩ
DS(ON)Q1
DS(ON)Q2
–
60
–
ID = 500 mA, T = 25°C, VBST = 8.0 V
A
Low-Side Power MOSFET Q2 RDS(ON) (8), (9)
R
–
65
–
ID = 500 mA, T = 25°C, VBST = 8.0 V
A
Buck Converter Peak Current Limit (High Level)
VOUT Pulldown MOSFET Q3 Current Limit
I
-4.0
-2.7
-1.5
A
A
LIMH
I
LIMPQ3
0.75
–
2.0
T
= 25°C, VBST = 8.0 V
A
(9)
VOUT Pulldown MOSFET Q3 R
ID = 1.0 A, VBST = 8.0 V
R
Ω
DS(ON)
DS(ON)PQ3
–
150
–
–
1.9
190
–
Thermal Shutdown (VOUT Pulldown MOSFET Q3) (8)
Thermal Shutdown Hysteresis (8)
T
170
10
°C
°C
SD
T
HYS
Notes
8. Design information only. This parameter is not production tested.
9. ID is the MOSFET drain current.
34701
Analog Integrated Circuit Device Data
Freescale Semiconductor
7
FREESCALE [ Freescale ]
