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AS1363-BSTT-45 Datasheet(PDF) 1 Page - ams AG |
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AS1363-BSTT-45 Datasheet(HTML) 1 Page - ams AG |
1 / 19 page AS1363 1A Low Dropout Linear Voltage Regulator www.ams.com/LDO Revision 1.9 1 - 19 1 General Description The AS1363 is a low-dropout linear regulator that operates from a +2.0V to +5.5V supply and delivers a guaranteed 500mA load current with low 150mV dropout. The device is available in two versions (see Table 1). One version has a high-accuracy output with a preset voltage (1.2V, 1.5V, 1.8V, 3.0V, 3.3V, or 4.5V). This voltage is internally trimmed and also offers a Bypass pin. With a capacitor connected to this Bypass pin, the PSRR and the Noise performance is improved. At the other version the output voltage is user-adjustable (1.2V to 5.3V) and offers an SET pin for setting the output voltage. Table 1. Standard Products A low supply current (65µA typ.) at maximum load is making the device ideal for portable battery-operated equipment. Other features are included such as an active-low open-drain reset output that indicates when the output is out of regulation, a low- current (30nA typ.) shutdown mode, an integrated short-circuit and a thermal shutdown protection. When in shutdown, a 5k (typ) discharge path is connected between the output pin and ground. The AS1363 is available in a 6- pin SOT23 package. 2 Key Features Guaranteed Output Current: 500mA Low Dropout: 150mV @ 500mA 2.0V to 5.5V Input Voltage Fixed Output Voltage: 1.2V to 5.0V User-Adjustable Output Voltage: 1.2V to 5.3V Power OK Output Low Quiescent Current: 40µA Low Shutdown Current: 30nA Thermal Overload Protection Output Current Limit Output discharge path during shutdown 6-pin SOT23 Package 3 Applications The device is ideal for laptops, PDAs, portable audio devices, mobile phones, cordless phones, and any other battery-operated portable device. Model Output Type BYP SET AS1363-AD Adjustable No Yes AS1363-_ _ Fixed Yes No AS1363-AD COUT2 .2µF 1 IN 6 OUT 3 EN 2 POK 5 SET CIN 1µF VIN 2.0V to 5.5V VOUT 1.2V to 5.3V 4 GND On Off R1 R2 RPOK 100k VOUT Logic Sup- ply Voltage To Controller Figure 1. AS1363 - Typical Application Circuit |
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