參數(shù)資料
型號(hào): S-8327
廠商: Seiko Instruments Inc.
英文描述: CMOS PWM-Control Step-Up Switching Regulator(External Transistor)(CMOS PFM(頻率脈沖調(diào)制)控制步升開(kāi)關(guān)穩(wěn)壓器)
中文描述: 的CMOS脈寬調(diào)制控制升壓開(kāi)關(guān)穩(wěn)壓器(外部晶體管)(烤瓷的CMOS(頻率脈沖調(diào)制)控制步升開(kāi)關(guān)穩(wěn)壓器)
文件頁(yè)數(shù): 25/65頁(yè)
文件大小: 569K
代理商: S-8327
SMALL PACKAGE PWM CONTROL STEP-UP SWITCHING REGULATOR
S-8323/8327 Series
24
Seiko Instruments Inc.
Figure 28
8.
Flash Memory Power Supply
The following are a circuit example and its characteristics for a 5 V Flash Memory, 16 Mbit (5V/120mA) on a single lithium
battery (2.4 V to 4.4 V).
4.90
4.94
4.98
5.02
5.06
5.10
0.01
0.1
Output Current I
OUT
1.
10.
(mA)
100.
1000.
VIN=2.0V
VIN=2.4V
VIN=3.6V
VIN=4.4V
0
0.01
20
40
60
80
100
0.1
Output Current I
OUT
1.
10.
(mA)
100.
1000.
VIN=2.0V
VIN=2.4V
VIN=3.6V
VIN=4.4V
(a)Output Current - Output Voltage
(b)Output Current - Efficiency
Output
Voltage
V
OUT
(V)
Efficiency
η
(%)
27
28
29
30
31
32
33
0.01
0.1
1.
10.
100.
(mA)
VIN=2.7V
VIN=3.0V
VIN=4.5V
VIN=5.0V
0
0.01
20
40
60
80
100
0.1
1.
10.
100.
(mA)
VIN=2.7V
VIN=3.0V
VIN=4.5V
VIN=5.0V
(a)Output Current - Output Voltage
(b)Output Current - Efficiency
Output Current I
OUT
Output Current I
OUT
Output
Voltage
V
OUT
(V)
Efficiency
η
(%)
S-8327B50
-
+
-
+
V
OUT
47
μ
F
EXT
C
IN
V
IN
5V
F93
C
OUT
CD54/47
μ
H
1 k
Control
Signal
0.0022
μ
F
Cb
R
b
ON/OFF
V
S
MA720
SD
L
2SD1628
Figure 29
Figure 30
相關(guān)PDF資料
PDF描述
S-8324 CMOS PWM/PFM-Control Step-Up Switching Regulator(CMOS PWM/PFM控制步升開(kāi)關(guān)穩(wěn)壓器)
S-8328 CMOS PWM/PFM-Control Step-Up Switching Regulator(CMOS PWM/PFM控制步升開(kāi)關(guān)穩(wěn)壓器)
S-8330 Step-Up Switching Regulator For LCD Bias Supply(用于LCD偏置電源的步升開(kāi)關(guān)穩(wěn)壓器)
S-8331 Step-Up Switching Regulator For LCD Bias Supply(用于LCD偏置電源的步升開(kāi)關(guān)穩(wěn)壓器)
S-8340 PWM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM控制,高頻步升開(kāi)關(guān)穩(wěn)壓器-控制器)
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