mc33702 Freescale Semiconductor, Inc, mc33702 Datasheet - Page 6

• Manufacturer Part Number: mc33702
• Description: 3.0 A Switch-mode Power Supply With Linear Regulator
• Manufacturer: Freescale Semiconductor, Inc

33702
6
STATIC ELECTRICAL CHARACTERISTICS
Characteristics noted under conditions -40°C T
application circuit (see
GENERAL
BUCK CONVERTER
Operating Voltage Range (V
Start-Up Voltage Threshold (Boost Switching)
V
Input DC Supply Current (Normal Operation Mode, Enabled)
V
V
V
V
Buck Converter Output Voltage Range
Buck Converter Feedback Voltage
Buck Converter Voltage Margining Step
Buck Converter Line Regulation
Buck Converter Load Regulation
V
High-Side Power MOSFET Q1 R
Low-Side Power MOSFET Q2 R
Buck Converter Peak Current Limit (High Level)
Buck Converter Valley Current Limit (Low Level)
V
V
Thermal Shutdown (Switcher, V
Thermal Shutdown Hysteresis
BST
IN1
IN2
DDI
DDI
OUT
OUT
OUT
I
I
Includes Load Regulation Error
V
I
V
I
I
T
I
VOUT
VOUT
VOUT
D
D
D
IN1
OUT
A
Pin Input Supply Current (EN1 = EN2 = 0)
Pin Input Leakage Current (EN1 = EN2 = 0)
Internal Supply Voltage
Maximum Output Current
= 1.0 A, T
= 1.0 A, T
= 1.0 A, T
Undervoltage Lockout
Input Leakage Current
Pull-Down MOSFET Q3 Current Limit
= 25°C, V
Pull-Down MOSFET Q3 R
= V
= 5.0 V
= 30 mA to 3.0 A, V
= 30 mA to 3.0 A, V
= 30 mA to 3.0 A
IN2
= 2.8 V to 6.0 V, I
A
A
A
BST
= 25°C, V
= 25°C, V
= 25°C, V
= 8.0 V
Figure
BST
BST
BST
IN1
IN1
IN1
Characteristic
, V
= 8.0 V
= 8.0 V
= 8.0 V
OUT
DS(ON)
DS(ON)
20) unless otherwise noted.
VOUT
DS(ON)
= V
= V
IN2
IN2
IN2
FET)
)
= 3.0 A
= 2.8 V to 6.0 V
= 2.8 V to 6.0 V. No R
Freescale Semiconductor, Inc.
For More Information On This Product,
J
125 C unless otherwise noted. Input voltages V
Go to: www.freescale.com
B
Resistor.
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
V
REG
REG
BST_UVLO
Symbol
I
R
R
R
I
VOUTLK
T
I
Q3_LIM
V
I
V
DS(ON)
DS(ON)
H_LIM
DS(ON)
V
V
L_LIM
SDHys
V
I
T
I
I
V
I
DDI
OUT
MVO
IN1
IN2
DDI
INV
IN
SD
ST
IN
LNVO
LDVO
0.784
Min
-1.0
-1.0
150
2.8
3.0
0.8
3.4
1.7
–
–
–
–
–
–
–
–
–
–
–
–
–
IN1
= V
TBD
TBD
TBD
2.25
Typ
170
1.6
6.0
9.0
0.8
1.0
4.5
2.0
60
15
IN2
–
–
–
–
–
–
–
–
= 3.3 V using the typical
0.816
Max
190
6.0
1.8
3.3
5.0
1.0
1.0
6.0
3.0
1.0
50
50
–
–
–
–
–
–
–
–
–
Unit
m
m
mA
mA
°C
°C
%
%
%
V
V
V
V
V
V
A
A
A
A
A
A