LA5744 Datasheet, PDF (2/5 Pages) Sanyo Semicon Device – Monolithic Linear IC Separately-Excited Step-Down Switching Regulator (Variable Type)

LA5744
Electrical Characteristics at Ta = 25°C, VO = 5V
Parameter
Symbol
Reference voltage
Efficiency
VOS
η
Switching frequency
f
Line regulation
Load regulation
Output voltage temperature
coefficient
Ripple attenuation factor
ΔVOLINE
ΔVOLOAD
ΔVO/ΔTa
RREJ
Current limiter operating voltage
Thermal shutdown operating
temperature
Thermal shutdown Hysteresis
width
IS
TSD
ΔTSD
* Design target value : No measurement made.
Conditions
VIN = 15V, IO = 1.0A
VIN = 15V, IO = 1.0A
VIN = 15V, IO = 1.0A
VIN = 8 to 20V, IO = 1.0A
VIN = 20V, IO = 0.5 to 1.5A
Designed target value. *
f = 100 to 120Hz
VIN = 15V
Designed target value. *
Designed target value. *
min
1.20
240
Ratings
typ
1.23
83
300
40
10
±0.5
45
3.1
165
15
max
1.26
360
100
30
Unit
V
%
kHz
mV
mV
mV/°C
dB
A
°C
°C
Package Dimensions
unit : mm (typ)
3343
10.4MAX
3.6
10.0
4.5
1.3
0.9
1
5
2
0.8 0.4
(1.6)
1.7
2.7
4.5
8.4
Pd max -- Ta
10.0
8.0 _{100×100×1.5mm}3
7.5
Infinite heat sink θjc=5°C
6.0 50×50×1.5mm³
5.6
4.0 _{30×30×1.5mm3}
3.3
2.0 ^{No heat sink}
1.75
Al heat
sink
mounting
torque
39N⋅cm
silicone
grease
applied
0
-30 -20
0 20 40 60 80 100 120 140 160
Ambient temperature, Ta -- °C MSG07021
SANYO : 220-5HK
Pin Assignment
(1) VIN (2) SWOUT (3) GND (4) VOS (5) SS
No.A0717-2/5