Note: Plan the maximum voltage while including coil and surge voltages, so that the maximum voltage is not exceeded even for an instant.
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,
damage may occur and reliability may be affected.
Recommended Operating Conditions
at Ta = 25°C
Parameter
VIN pin voltage
BOOT pin voltage
SW pin voltage
BOOT pin-SW pin voltage
FB, EN, COMP, SS pin voltage
Symbol
VIN
VBT
VSW
VBS-SW
VFSO
Conditions
Ratings
8 to 28
-0.3 to 34
-0.4 to VIN
6.5
6
Unit
V
V
V
V
V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended
Operating Ranges limits may affect device reliability.
Electrical Characteristics
at Ta = 25°C VIN = 12V, unless otherwise specified.
Ratings
Parameter
IC current drain in standby
IC current drain in operation
Efficiency
Reference voltage
FB pin bias current
High-side ON resistance
Low-side ON resistance
Oscillation frequency
Oscillation frequency during
short-circuit protection
EN high-threshold voltage
EN low-threshold voltage
EN pull-up corrent
Maximum ON DUTY
Current limit peak value
Thermal shutdown temperature
Thermal shutdown temperature
hysteresis
Soft start current
ISS
SS=0V
6
10
14
μA
Venh
Venl
Ien
D max
Icl
Ttsd
Dtsd
VIN=12V, VOUT=5V, L=10μH
*Design guarantee *2
*Design guarantee *2
3.8
160
40
EN=0V
0.8
16
80
1.9
V
V
μA
%
A
°C
°C
Symbol
ICC1
ICC2
Effcy
Vref
Iref
RonH
RonL
FOSC
FOSCS
296
30
EN=0V
EN=open, FB=1V
VIN=12V, IOUT=1A, VOUT=5V
Design target: *1
VIN=8V to 28V (±2%)
FB=0.8V application
BOOT=5V
-2%
Conditions
min
typ
70
5
90
0.8
10
0.13
7
370
38
444
46
+2%
100
max
Unit
μA
mA
%
V
nA
Ω
Ω
kHz
kHz
*1: Design target (not tested before shipment)
*2: Design guarantee (value guaranteed by design and not tested before shipment)
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be
indicated by the Electrical Characteristics if operated under different conditions.
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
