参数资料
型号: LA5779MP-DL-E
厂商: ON Semiconductor
文件页数: 2/4页
文件大小: 0K
描述: IC REG BUCK ADJ SMP5
标准包装: 1,000
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 可调至 1.23V
输入电压: 4.5 V ~ 28 V
频率 - 开关: 160kHz
同步整流器:
工作温度: -30°C ~ 125°C
安装类型: 表面贴装
封装/外壳: TO-252-6,DPak(5 引线 + 接片)
包装: 带卷 (TR)
供应商设备封装: SMP5
LA5779MP
Electrical Characteristics at Ta = 25 ° C, VO = 3.3V
Parameter
Symbol
Conditions
min
Ratings
typ
max
Unit
Reference voltage
Efficiency
Switching frequency
Switching frequency when
VOS
η
f
fshort
VIN = 15V, IO = 1.0A
VIN = 15V, IO = 1.0A, Set VO = 5V
VIN = 15V, IO = 1.0A
VIN = 15V, VOS = 0V
1.20
128
15
1.23
84
160
30
1.26
192
45
V
%
kHz
kHz
short-circuit protection is active
Line regulation
Load regulation
Output voltage temperature
Δ VOLINE
Δ VOLOAD
Δ VO/ Δ Ta
VIN = 8 to 20V, IO = 1.0A
VIN = 15V, IO = 0.5 to 1.5A
Designed target value. *
40
10
± 0.5
100
30
mV
mV
mV/ ° C
coefficient
Ripple attenuation factor
Output leak current
Current limiter operating voltage
Operating current
RREJ
IOleak
IS
IVIN
f = 100 to 120Hz
VIN = 15V, SWOUT = -0.4V
VIN = 15V
VIN = 15V
3.1
45
5.6
50
dB
μ A
A
mA
Standby current
ENA pin LOW voltage range
ISTBY
VENAL
VIN = 15V, ENA = 5V
50
100
0.6
μ A
V
ENA pin HIGH voltage range
Thermal shutdown operating
VENAH
TSD
Designed target value. *
2.4
165
VIN
V
° C
temperature
Thermal shutdown Hysteresis
Δ TSD
Designed target value. *
15
° C
width
* Design target value: No measurement made.
Package Dimensions
unit : mm (typ)
3275
Pd max - Ta
10.0
4.5
1.3
4.5
4.0
3.90
Specified sbstrate: 76.1 × 114.3 × 1.6mm 3
Copper foil ratio 60% FR4
3.5
3.0
2.5
2.0
1.5
(1.6)
1.7
0.9
0.4
0.2
2.7
1.0
0.5
1
5
SANYO : SMP5
0
-30 -20
0
20 40 60 80 100
Ambient temperature, Ta - ° C
120
140 160
MSG06072
Pin Assignment
(1) VIN (2) SWOUT
(3) GND
(4) VOS
(5) ENA
No.A0498-2/4
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