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參數(shù)資料
| 型號： | SP6641A |
| 英文描述： | 500mA Alkaline DC/DC Boost Regulator in SOT-23 |
| 中文描述： | 堿性500mA的DC / DC升壓穩(wěn)壓器采用SOT - 23 |
| 文件頁數(shù)： | 3/13頁 |
| 文件大小： | 120K |
| 代理商： | SP6641A |
3
Rev. 3/5/02, *Patent Pending
SP6641A/6641B 500mA Alkaline DC/DC Boost Regulator in SOT-23
Copyright 2002 Sipex Corporation
PIN DESCRIPTION
PIN NO.
1
PIN NAME
LX
DESCRIPTION
Inductor switching node. Connect one terminal of the inductor to the
positive terminal of the battery. Connect the second terminal of the
inductor to this pin. The inductor charging current flows into LX,
through the internal charging N-channel FET, and out through the GND
pin.
Ground pin. The internal regulator bias currents and the inductor
charging current flows out of this pin.
Output voltage sense pin, internal regulator voltage supply, and
minimum off-time one shot input. Kelvin connect this pin to the positive
terminal of the output capacitor, but for SP6641B, use 10
series
resistor and 1
μ
F bypass per Figure 1 schematic.
Shutdown. Tie this pin to V
BATT
for normal operation. Tie this pin the
ground to disable all circuitry inside the chip. In shutdown mode, the
output voltage will float at a diode drop below the battery potential.
Battery voltage pin. The startup circuitry runs off of this pin. The
regulating circuitry also uses this voltage to control the minimum off-
time. T
OFF
≥
K
OFF
/ (V
OUT
– V
IN
).
2
GND
3
V
OUT
4
SHDN
5
V
BATT
BLOCK DIAGRAM
IV
BATT
V
BATT
Internal
SHDN
V
OUT
Ref
REFREADY
REF
GND
Internal
I
PK
/M
V
OUT(LOW)
LX
+
-
C
SU
OSC
EN
Min.
T
OFF
+
-
C
FB
SHDN
V
BATT
V
OUT
V
OUT
SHDN
V
OUT
NGATE
DRIVER
CHARGE
R
Q
S
Qn
T
OFF
SUGATE
V
BATT
V
OUT
LX
M
1
ICHN
SP6641
LOAD
V
BATT
V
OUT
ITH
相關PDF資料 |
PDF描述 |
|---|---|
| SP6641B | 500mA Alkaline DC/DC Boost Regulator in SOT-23 |
| sp6641 | 500mA Alkaline DC/DC Boost Regulator in SOT-23(500mA堿性DC/DC升壓穩(wěn)壓器(SOT-23封裝)) |
| SP6641AEK-33TR | Circular Connector; No. of Contacts:3; Series:MS27466; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:9; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:9-98 RoHS Compliant: No |
| SP6641AEK-50TR | 500mA Alkaline DC/DC Boost Regulator in SOT-23 |
| SP6641BEK-50TR | MS3120E20-39PXF0 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SP6641A_05 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:500mA Alkaline DC/DC Boost Regulator in SOT-23 |
| SP6641AEK-3.3 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Noise Evaluation Board |
| SP6641AEK-3.3/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:500mA Alkaline DC/DC Boost Regulator in SOT-23 |
| SP6641AEK-3-3/TR | 功能描述:開關變換器、穩(wěn)壓器與控制器 100mA Alkaline DC/DC RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SP6641AEK-33TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:500mA Alkaline DC/DC Boost Regulator in SOT-23 |
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