The CST75XX 36V series is a highvoltage，ultralow-power，low dropout voltage regulator.
The device can deliver 150mA output current with a dropout voltage of 300mV and allows an input voltage as high as 36V. The typical quiescent current is only 1.5µA. The device is available in fixed output voltages of 1.8,2.5,2.8,3.0,3.3,3.6,4.0,4.2,4.4 and 5.0V.The device features integrated short-circuit and thermal shutdown protection.Although designed primarily as fixed voltage regulators, the device can be used with external components to obtain variable voltages.
CST75XX 36V series Features:
Low Power Consumption: 1.5µA (Typ)
Maximum Output Current: 150mA
Small Dropout Voltage
300mV@100mA (Vout=3.3V)
CST7550(B)±2% Output Voltage
CST7550(A) ±1% Output Voltage
RoHS Compliant and Lead (Pb) Free
Good Transient Response
Integrated Short-Circuit Protection
Over-Temperature Protection
Output Current Limit
Stable with Ceramic Capacitor
Support Fixed Output Voltage
1.8,2.5,3.0,3.3,3.6,4,0,4.2 and 5.0V
SOT23-3/SOT89-3
CST75XX 36V series Application:
Portable, Battery Powered Equipment
Smoke detector and sensor
Battery-powered equipment
Audio/Video Equipmen
Weighting Scales
Home Automation
CST75XX 36V series Application Circuits:
CST75XX 36V series Pin Configuration:
CST75XX 36V series Pin Description:
CST75XX 36V series Order Information:
CST7550①②③④⑤
|
Designator
|
Symbol
|
Description
|
|
①②
|
S3/P3
|
SOT23-3L/SOT89-3L
|
|
③④
|
Integer
|
Output Voltage 1.8,2.5,2.8,3.0,3.3,3.6,4.0,4.2and5.0
|
|
⑤
|
A
|
Accurate±1%
|
|
B
|
Accurate±2%
|
|
Model
|
Marking
|
Description
|
Package
|
T/R Qty
|
|
CST7550S3-XX*
|
AFXXA(B)
|
CST7550 36V;1.5μAIQ
150mA Low-Dropout LDO
|
SOT23-3L
|
3000PCS
|
|
CST7550P3-XX*
|
AFXXA(B)
|
SOT89-3L
|
1000PCS
|
Note:(*)XX Represents the Output Voltage
CST75XX 36V series Marking Information:
①②Represents the product name
|
Mark①②
|
Product Series
|
|
AF
|
CST7550 S3/P3
|
③④Represents the Output Voltage
|
Mark
|
Output Voltage(V)
|
Mark
|
Output Voltage(V)
|
||||
|
18
|
—
|
1.8
|
—
|
36
|
—
|
3.6
|
—
|
|
25
|
—
|
2.5
|
—
|
40
|
—
|
4.0
|
—
|
|
28
|
—
|
2.8
|
—
|
42
|
—
|
4.2
|
—
|
|
30
|
—
|
3.0
|
—
|
50
|
—
|
5.0
|
—
|
|
33
|
—
|
3.3
|
—
|
—
|
—
|
|
—
|
⑤Represents the Output Voltage Accurate
|
Mark⑤
|
Product Series
|
|
|
±1% Output Voltage
|
±2%Output Voltage
|
CST7550(AorB)
|
|
A
|
B
|
|
CST75XX 36V Function Block Diagram：
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