S-8550 regulators equivalent, (s-8550 / s-8551) pwm control switching regulators.
* Oscillation frequency : 1.2 MHz
* Input voltage range : 2.0 to 5.5 V
* Output voltage range : Arbitrarily settable by external output voltage setting resist.
* Mobile devices, such as mobile phones, Bluetooth devices, wireless devices, digital audio players, digital still c.
IC power supply pin GND pin Shutdown pin “H” : Power on (normal operation) “L” : Power off (standby) Output voltage feedback pin External inductor connection pin VIN VSS
Pin No. 1 2 3 4 5
Symbol
ON/OFF FB CONT
1
2
3
Figure 2
Table 2
Pin No. 1.
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