參數(shù)資料
型號(hào): S-8328
廠商: Seiko Instruments Inc.
英文描述: CMOS PWM/PFM-Control Step-Up Switching Regulator(CMOS PWM/PFM控制步升開關(guān)穩(wěn)壓器)
中文描述: 的CMOS PWM / PFM切換,控制升壓型開關(guān)穩(wěn)壓器的CMOS(PWM / PFM切換控制步升開關(guān)穩(wěn)壓器)
文件頁(yè)數(shù): 21/68頁(yè)
文件大?。?/td> 647K
代理商: S-8328
SMALL PACKAGE PWM/PFM CONTROL STEP-UP SWITCHING REGULATOR
S-8324/8328 Series
20
Seiko Instruments Inc.
4.
PDA/Digital Camera Power Supply
The following are a circuit example and its characteristics showing a 3-V system drive (3V/200mA) powered by 4 secondary
Nicd batteries (3.6 to 4.8V), 2 lithium-ion batteries (4.8 to 8.8V) or 4 alkaline-manganese batteries (3.6 to 6.0V).
(a) Output Current - Output Voltage
3.05
(b)Output Current - Efficiency
100
2.95
2.97
2.99
3.01
3.03
0.01
0.1
Output Current I
OUT
1.
10.
(mA)
100.
1000.
Output Voltage
V
OUT
(V)
VIN=3.3V
VIN=3.6V
VIN=4.8V
VIN=7.2V
50
60
70
80
90
0.01
0.1
Output Current I
OUT
(mA)
1.
10.
100.
1000.
Efficiency
η
(%)
VIN=3.3V
VIN=3.6V
VIN=4.8V
VIN=7.2V
t (10
μ
sec/div)
Output
Voltage
(10mV/div)
0V
Point A
Voltage
(1V/div)
3V
VIN=3.6V IOUT=300mA
Figure 22
V
DD
S-8324D30
-
C
IN
+
-
+
V
OUT
V
SS
C
OUT
R
E
R
b
CONT
V
IN
3V
2SA1213/TOSHIBA
5.1k
750
A
MA72
SD
CD54/100
μ
H
F93
22
μ
F
L
Figure 20
Figure 21
(c) Ripple Characteristics
相關(guān)PDF資料
PDF描述
S-8330 Step-Up Switching Regulator For LCD Bias Supply(用于LCD偏置電源的步升開關(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,高頻步升開關(guān)穩(wěn)壓器-控制器)
S-8340A PWM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM控制,高頻步升開關(guān)穩(wěn)壓器-控制器)
S-8340B PWM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM控制,高頻步升開關(guān)穩(wěn)壓器-控制器)
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