參數資料
型號: SI-3025ZD
廠商: Allegro MicroSystems, Inc.
英文描述: High-Current, Low-Dropout, 2.5 V Regulator
中文描述: 大電流,低壓差,2.5 V穩(wěn)壓器
文件頁數: 1/4頁
文件大小: 44K
代理商: SI-3025ZD
Parameter
Input Voltage
DC Output Current
Ambient Operating Temperature
Symbol
V
IN
I
O
T
op
I
Features
Compact surface-mount package (SOT-89-5)
Output current: 250 mA
Low current consumption lq (OFF)
1
μ
A (V
C
= 0 V)
Low dropout voltage: V
DIF
0.5 V (at I
O
= 250 mA)
5 types of output voltages (Adj, 1.8 V, 2.5 V, 3.3 V, 5.0 V) available
Built-in dropping type overcurrent, thermal protection circuits
I
Applications
Auxiliary power supply for PC
Battery-driven electronic equipment
I
Absolute Maximum Ratings
Parameter
SI-3000LU Series
Surface-Mount, Low Current Consumption, Low Dropout Voltage Dropper Type
G
SI-3000LU
Series
Ratings
min.
max.
V
O
+2
*1
250
*2, *3
0
–20
85
Unit
V
mA
°
C
Unit
V
mA
W
°
C
°
C
°
C/W
Ratings
18
250
0.75
–40 to +135
–40 to +125
146
Symbol
V
IN
I
O
P
D*1
T
j*2
T
op*2
θ
j-a*1
DC Input Voltage
DC Output Current
Power Dissipation
Junction Temperature
Storage Temperature
Thermal Resistance (Junction to Ambient Air)
*1: When mounted on glass-epoxy board 40
×
40 mm (copper laminate area 2%)
*2: Thermal protection circuits may operate if the junction temperature exceeds 135
°
C
(T
a
=25
°
C)
I
Recommended Operating Conditions
*1: V
IN
(max) and I
O
(max) are restricted by the relationship P
D
= (V
IN
- V
O
)
×
I
O
.
Calculate these values referring to the reference data.
*2: Refer to the dropout voltage section.
*3: For the SI-3012LU, set the input voltage to at least 2.4 V, and secure the minimum voltage as explained in Setting DC Input Voltage,
Dropper Type Application Note.
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