AS1374-BWLT-285 austriamicrosystems, AS1374-BWLT-285 Datasheet
AS1374-BWLT-285
Specifications of AS1374-BWLT-285
Related parts for AS1374-BWLT-285
AS1374-BWLT-285 Summary of contents
Page 1
... Two active-High enable pins allows to switch on or off each output independently from each other. The AS1374 requires only 1µF output capacitor for stability at any load. The device is available in a 6-bump WLP package. Figure 1. AS1374 - Typical Application Circuit Input ...
Page 2
... GND www.austriamicrosystems.com/LDOs/AS1374 AS1374 Description Regulated Output Voltage 2. Bypass this pin with a capacitor to GND. See Selection and Regulator Stability on page 11 Input Supply Regulated Output Voltage 1. Bypass this pin with a capacitor to GND. See Selection and Regulator Stability on page 11 Enable 2. Pull this pin to logic low to disable Regulated Output 2 voltage. ...
Page 3
... Output Short-Circuit Duration Input Current (latch-up immunity) Electrostatic Discharge Electrostatic Discharge HBM Temperature Ranges and Storage Conditions Thermal Resistance Θ JA Junction Temperature Storage Temperature Range Package Body Temperature Humidity non-condensing Moisture Sensitive Level www.austriamicrosystems.com/LDOs/AS1374 Electrical Characteristics on page 4 Min Max Units -0 -0 0.3 V ...
Page 4
... Thermal Shutdown Hysteresis SHDN 1. Dropout is defined when V IN OUT OUT 2. Time needed for V to reach 90% of final value. OUT www.austriamicrosystems.com/LDOs/AS1374 = 1µF, Typ values are +25ºC (unless otherwise specified). All limits are guaranteed. AMB Condition I = 1mA +25ºC OUT AMB I = 100µA to 200mA +25º ...
Page 5
... Load Current (mA) Figure 7. Dropout Voltage vs. Load Current 150 125 100 100 125 Load Current (mA) www.austriamicrosystems.com/LDOs/AS1374 = 1µ 25°C (unless otherwise specified). AMB Figure 4. Output Voltage vs. Input Voltage 2.88 2.87 2.86 2.85 2.84 2.83 2. 3.35 Figure 6. Output Voltage vs. Input Voltage - Dropout 2.86 -40° ...
Page 6
... Input Voltage (V) Figure 13. Ground Pin Current vs. Input Voltage; both Channels on, no Load 100 Input Voltage (V) www.austriamicrosystems.com/LDOs/AS1374 Figure 10. Ground Pin Current vs. Temperature -40°C +25°C +85°C 25 150 175 200 -45 -30 -15 one Channel Figure 12. Ground Pin Current vs. Input Voltage; on, I LOAD -40°C 10 +25°C +85° ...
Page 7
... Load Current (mA) Figure 19. Load Transient Response, Crosstalk, between CH1 and CH2 200mA OUT 20µs/Div www.austriamicrosystems.com/LDOs/AS1374 Figure 16. Load Regulation vs. Temperature 0 -0.0002 -0.0004 -0.0006 -0.0008 -0.001 -0.0012 4 4.5 5 5.5 -45 -30 -15 Figure 18. Line Regulation vs. Temperature 0.2 ...
Page 8
... AS1374 Datasheet - Figure 21. Line Transient Response 100µs/Div Figure 23. Startup of CH1 when CH2 is Off 20µs/Div www.austriamicrosystems.com/LDOs/AS1374 Figure 22. Shutdown 100µs/Div Figure 24. Startup of CH1 when CH2 is On 20µs/Div Revision 1. ...
Page 9
... The AS1374 deliver preset output voltages from 1.2V to 3.6V, in 50mV increments Enable The AS1374 feature an actice high enable mode to shutdown each output indepentend. Driving EN 1 low disables Output 1, driving EN 2 low dis- ables Output 2. The disabled Output enters a high-impedance state. Figure 25. AS1374 - Block Diagram ...
Page 10
... Note: Thermal protection is designed to protect the devices in the event of fault conditions. For continuous operation, do not exceed the abso- lute maximum junction temperature rating of +150ºC. Operating Region and Power Dissipation The AS1374 maximum power dissipation is dependant on the thermal resistance of the case and PCB, the temperature difference between the die junction and T , and airflow rate. ...
Page 11
... Noise, PSRR, and Transient Response The AS1374 is designed to deliver ultra-low noise and high PSRR, as well as low dropout and low quiescent currents in battery-powered sys- tems. The power-supply rejection is 85dB at 1kHz and 50dB at 100kHz. When operating from sources other than batteries, improved supply-noise rejection and transient response can be achieved by increasing the values of the input and output capacitors, and through passive filtering techniques ...
Page 12
... AS1374 Datasheet - Package Drawings and Markings Figure 26. 6-bump WLP Marking Figure 27. 6-bump WLP Package www.austriamicrosystems.com/LDOs/AS1374 Package Code: XXXX - encoded Datecode Revision 1. ...
Page 13
... AS1374 Datasheet - Ordering Information The devices are available as the standard products shown in Table 4. Ordering Information Ordering Code Marking AS1374-BWLT-285 ASSH AS1374-BWLT1833 ASSJ AS1374-BWLT1818 ASSP AS1374-BWLT1218 ASSK AS1374-BWLT1214 ASSY AS1374-BWLT18285 ASSZ AS1374-BWLT1212 ASSW AS1374-BWLT1827 ASTB 1 ASTF AS1374-BWLT1533 1 ASTG AS1374-BWLT1820 1 ASTH AS1374-BWLT1821 1 ASTI ...
Page 14
... No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services. Contact Information Headquarters austriamicrosystems AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Tel: +43 (0) 3136 500 0 Fax: +43 (0) 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: http://www.austriamicrosystems.com/contact www.austriamicrosystems.com/LDOs/AS1374 Revision 1. ...