CST6211C 概述/Description:
The CST6211C series are highly precise, low noise, positive voltage LDO regulators manufactured using CMOS processes. The series achieves high ripple rejection and low dropout and consists of a standard voltage source, an error correction, current limiter and a phase compensation circuit plus a driver transistor. Output voltage is selectable in 0.1V increments within a range of 1.2V ~ 3.6V. The series is also compatible with low ESR ceramic capacitors which give added output stability. This stability can be maintained even during load fluctuations due to the excellent transient response of the series. The limiter‘s feedback circuit also operates as a protect for the output current limiter The CE function enables the output to be turned off, resulting in greatly reduced power consumption.The CST6211C consumes less than 1μA in shutdown mode and has fast turn-on time less than 50s. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio.
CST6211C Features:
Low Power Consumption: 70uA(Typ)
Maximum Output Current: 300mA
Small Dropout Voltage
130mV@100mA (Vout=3.3V)
PSRR=70dB@1KHz
Input Voltage Range: 2.0V~6.5V
Output Voltage Range: 1.2V~3.6V
(customized on command in 0.1V steps)
Standby Current : less than 1μA
High Accurate: ±2%
Good Transient Response
Over-Temperature Protection
Support Fixed Output Voltage
Output Current Limit
Stable with Ceramic Capacitor
Available Package
SOT23-3 \ SOT23-5 \ SOT89-3 \ SC70-5
RoHS Compliant and Lead (Pb) Free
CST6211C Application:
Portable, Battery Powered Equipment
Power Management of MP3. PDA…
Audio/Video Equipment
Weighting Scales. Home Automation
CST6211C Application Circuits:
CST6211C Pin Configuration:
CST6211C Order Information:
CST6211C①②-③④
|
Designator
|
Symbol
|
Description
|
|
①②
|
S3/S5/P3/K5
|
SOT23-3L / SOT23-5L / SOT89-3L / SC70-5 |
|
③④
|
Integer
|
Output Voltage (12、15、18、25、28、30、33、36) |
|
Model
|
Marking**
|
Description
|
Package
|
T/R Qty
|
|
CST6211CS3-XX*
|
①②③④
|
CST6211C 300mA Low-Dropout Linear voltage regulator |
SOT23-3L
|
3,000 PCS
|
|
CST6211CS5-XX*
|
-----------
|
SOT23-5L
|
3,000 PCS
|
|
|
CST6211 P3-XX*
|
①②③④
|
SOT89-3L
|
1,000 PCS
|
|
|
CST6211 K5-XX*
|
-----------
|
SC70-5
|
3,000 PCS
|
CST6211C Function Block Diagram:
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