參數(shù)資料
型號(hào)： S-8520B50MC-ASJ-T2
英文描述： Analog IC
中文描述： 模擬IC
文件頁(yè)數(shù)： 6/37頁(yè)
文件大?。?/td> 599K
代理商： S-8520B50MC-ASJ-T2
PWM Control & PWM/PFM Control Step-Down Switching Regulator-Controllers
S-8520/8521 Series
Rev.7.2
Seiko Instruments Inc.
6
3. S-8520/21 E & F Series
(Ta = 25
°
C unless otherwise specified)
Typ.
Max.
Parameter
Symbol
Conditions
Min.
Units
Measurement
Circuit
3
Output voltage
VOUT
VOUT
X 0.976
2.5
VOUT
VOUT
X 1.024
10.0
V
Input voltage
VIN
S-8520/21E Series
V
2
S-8520/21F Series
2.5
16.0
Current consumption 1
Current consumption during
power-off
ISS1
ISSS
VOUT =Output voltage x 1.2
Power-off pin = 0V
60
100
0.5
μ
A
μ
A
2
2
S-8520/21X15
24
-2.3
-4.5
S-8520/21X25
34
-3.7
-7.0
IEXTH
VEXT = VIN-0.4 V
S-8520/21X35
44
-5.3
-9.3
S-8520/21X45
54
-6.7
-11.3
EXT pin output current
S-8520/21X55
60
-8.0
-13.3
mA
S-8520/21X15
24
+4.3
+8.4
S-8520/21X25
34
+7.0
+13.2
IEXTL
VEXT = 0.4 V
S-8520/21X35
44
+9.9
+17.5
S-8520/21X45
54
+12.6
+21.4
S-8520/21X55
60
+15.0
+25.1
Line regulation
Load regulation
VOUT1 Vin = Output voltage x1.2 to x1.4 *3
VOUT2 Load current =10
μ
A to IOUT(See below)
x1.25
VOUT
/
Ta
fosc
Measure waveform
at EXT pin
30
30
60
60
mV
mV
3
3
Output voltage temperature
coefficient
Oscillation frequency
Ta = - 40
°
C to 85
°
C
±
VOUT
x 5E-5
300
V/
°
C
3
VOUT
≥
2.5V
240
360
kHz
3
VOUT
≤
2.4V
225
300
375
PWM/PFM-control switch duty
ratio *1
Power-Off pin
input voltage
Power-Off pin
input leakage current
Soft-Start time
Overload detection time *2
PFM Duty Measure waveform at EXT pin under no
load.
VSH
Evaluate oscillation at EXT pin
VSL
Evaluate oscillation stop at EXT pin
ISH
ISL
TSS
TPRO
Duration from the time Vout is reduced to
0 V to the time the EXT pin obtains Vin.
EFFI
15
25
40
%
3
1.8
2.0
1.3
V
2
0.3
0.1
-0.1
9.2
4.5
μ
A
μ
A
ms
ms
1
1
3
2
4.5
2.6
Efficiency
90
%
3
Conditions:
The recommended components are connected to the IC, unless otherwise indicated. Vin = Vout x 1.2 [V],
Iout = 120 [mA] (Vin = 2.5 V, if Vout
≤
2.0 V.)
Peripheral components:
Coil
: Sumida Electric Co., Ltd. CD54 (47
μ
H).
Diode
: Matsushita Electronics Corporation MA720 (Schottky type).
Capacitor
: Matsushita Electronics Corporation TE (16 V, 22
μ
F tantalum type).
Transistor
: Toshiba 2SA1213Y.
Base resistance (Rb)
: 0.68K
Base capacitor (Cb)
: 2200 pF (Ceramic type)
The power-off pin is connected to VIN.
Notes:
The output voltage indicated above represents a typical output voltage set up. These specifications apply in
common to both S-8520 and S-8521, unless otherwise noted.
*1: Applicable to the S-8521E Series and S-8521F Series.
*2: Applicable to the S-8520E Series and S-8521E Series.
*3: Vin = 2.5 V to 2.94 V, if Vout
≤
2.0 V.
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S-8520B50MC-ASJT2G 功能描述:DC/DC 開(kāi)關(guān)控制器 5.0V Step-Down PWM RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
S-8520B53MC-ASMT2G 功能描述:DC/DC 開(kāi)關(guān)控制器 Step Down SWR PWM 180kHz 60uA Iq RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
S-8520C25MC-BRK-T2 功能描述:DC/DC 開(kāi)關(guān)控制器 2.5V Step-Down PWM RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
S-8520C25MC-BRKT2G 功能描述:DC/DC 開(kāi)關(guān)控制器 2.5V Step-Down PWM RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
S-8520C25MC-BVK-T2 制造商:SII 制造商全稱(chēng):Seiko Instruments Inc 功能描述:PWM CONTROL & PWM/PFM CONTROL STEP-DOWN SWITCHING REGULATOR-CONTROLLERS
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