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参数资料
| 型号： | S-T111B51MC-OHKTFU |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 5.1 V FIXED POSITIVE LDO REGULATOR, 0.26 V DROPOUT, PDSO5 |
| 封装： | HALOGEN FREE AND LEAD FREE, SOT-23, 5 PIN |
| 文件页数： | 20/23页 |
| 文件大小： | 225K |
| 代理商： | S-T111B51MC-OHKTFU |
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-T111 Series
Rev.3.0_00
Seiko Instruments Inc.
6
Electrical Characteristics
Table
4
(Ta
= 25°C unless otherwise specified)
Item
Symbol
Conditions
Min.
Typ.
Max.
Unit
Test
Circuit
Output voltage
*1
VOUT(E)
VIN = VOUT(S) + 1.0 V, IOUT = 30 mA
VOUT(S)
× 0.99
VOUT(S)
× 1.01
V
1
Output current
*2
IOUT
VIN ≥ VOUT(S) + 1.0 V
150
*5
mA
3
Dropout voltage
*3
Vdrop
IOUT = 50 mA
1.5 V
≤ V
OUT(S) ≤ 2.7 V
Not specified
V
1
2.8 V
≤ V
OUT(S) ≤ 5.5 V
0.08
0.14
V
1
IOUT = 100 mA
1.5 V
≤ V
OUT(S) ≤ 1.6 V
0.32
0.55
V
1
1.7 V
≤ V
OUT(S) ≤ 1.8 V
0.28
0.47
V
1
1.9 V
≤ V
OUT(S) ≤ 2.3 V
0.25
0.35
V
1
2.4 V
≤ V
OUT(S) ≤ 2.7 V
0.20
0.29
V
1
2.8 V
≤ V
OUT(S) ≤ 5.5 V
0.19
0.26
V
1
Line regulation
OUT
IN
OUT1
V
Δ
VOUT(S) + 0.5 V ≤ VIN ≤ 6.5 V,
IOUT = 30 mA
0.05
0.2
% / V
1
Load regulation
ΔV
OUT2
VIN = VOUT(S) + 1.0 V,
1.0 mA
≤ I
OUT ≤ 80 mA
12
40
mV
1
Output voltage
temperature coefficient
*4
OUT
V
Ta
V
Δ
VIN = VOUT(S) + 1.0 V, IOUT = 10 mA,
40°C ≤ Ta ≤ 85°C
±100
ppm /
°C1
Current consumption
during operation
ISS1
VIN = VOUT(S) + 1.0 V, ON/OFF pin = ON,
no load
50
90
μA
2
Current consumption
during shutdown
ISS2
VIN = VOUT(S) + 1.0 V, ON/OFF pin = OFF,
no load
0.1
1.0
μA
2
Input voltage
VIN
2.0
6.5
V
Shutdown pin
input voltage “H”
VSH
VIN = VOUT(S) + 1.0 V, RL = 1.0 kΩ
1.5
V
4
Shutdown pin
input voltage “L”
VSL
VIN = VOUT(S) + 1.0 V, RL = 1.0 kΩ
0.3
V
4
Shutdown pin
input current “H”
ISH
VIN = 6.5 V, VON/OFF = 6.5 V
0.1
0.1
μA
4
Shutdown pin
input current “L”
ISL
VIN = 6.5 V, VON/OFF = 0 V
0.1
0.1
μA
4
Ripple rejection
RR
VIN = VOUT(S) + 1.0 V, f = 1.0 kHz,
ΔV
rip = 0.5 Vrms, IOUT = 30 mA
80
dB
5
Short-circuit current
Ishort
VIN = VOUT(S) + 1.0 V, ON/OFF pin = ON,
VOUT = 0 V
200
mA
3
*1. VOUT(S): Specified output voltage
VOUT(E): Actual output voltage at the fixed load
The output voltage when fixing IOUT(= 30 mA) and inputting VOUT(S) + 1.0 V
*2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output current.
*3. Vdrop = VIN1 (VOUT3 × 0.98)
VOUT3 is the output voltage when VIN = VOUT(S) + 1.0 V and IOUT = 50 mA or IOUT = 100 mA.
VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input voltage.
*4. The change in temperature [mV/°C] is calculated using the following equation.
1000
]
C
/
ppm
[
V
Ta
V
]
V
[
V
]
C
/
mV
[
Ta
V
OUT
)
S
(
OUT
÷
°
Δ
×
=
°
Δ
*3
*2
*1
*1. The change in temperature of the output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
*5. The output current can be at least this value.
Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the
power dissipation of the package when the output current is large.
This specification is guaranteed by design.
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