AS1301A-BWLT austriamicrosystems, AS1301A-BWLT Datasheet

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... Key Features Up to 92% Efficiency ! 2.7 to 5.25V Input Voltage ! Regulated 5V Output ! Automatic Mode Up-Switching ! Figure 1. AS1301 - Typical Application Diagram VBATT + www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 <5µA Shutdown Current ! 5V Tolerant Enable Signal ! Up to 50mA Load Current ! Overload Protection ! Output Disconnected During Shutdown ! Soft-Start ! No Inductor Required ...

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... Exposed Pad A2 www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 EN 10 C1- 9 VBATT VOUT 8 C2- 7 C1+ C1 C2+ Pin Name Connector 2+. Positive terminal of flying cap 2. C2+ +5V Output Voltage. This pin must be bypassed with a ≥ 2.2µF low ESR VOUT ceramic capacitor. Connected to GND or left floating. NC Connected to GND or left floating. ...

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... Table 2. Absolute Maximum Ratings Parameter All pins to GND Operating Temperature Range Storage Temperature Range ESD Package Body Temperature www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 Section 6 Electrical Characteristics on page 4 Min Max Units -0.3 +7.0 V -40 +85 º ...

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... The device is tested in a proprietary test mode. 2. The inrush current is limited by the internal soft-start circuitry. Note: All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality Control) methods. www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 = 2.2µ =220nF -40 to +85º ...

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... Input Voltage (V) Figure 7. Efficiency vs. Input Voltage; I =50mA LOAD 100 1:2 2:3 mode mode 2.75 3.25 3.75 4.25 4.75 Input Voltage (V) www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 = 2.2µ =220nF +25ºC, unless otherwise specified. FLY1 FLY2 AMB Figure 4. Efficiency vs. Input Voltage; I 100 1:2 1:1 mode mode 2.75 3 ...

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... OUT 5.05 5.04 VBATT = 3.1V 5.03 5.02 VBATT = 4.2V 5.01 VBATT = 3.6V 5 4.99 4.98 -40 - Temperature(°C) www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 Figure 10. Output Voltage vs. Output Current 5.3 5.2 5.1 5 4.9 4.8 4.7 0.1 100 Figure 12. Output Voltage vs. Temperature; I 5.07 5.06 VBATT = 3.6V 5.05 5.04 5.03 5 ...

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... Figure 17. Efficiency vs. Output Current; V =3.5V IN 100 2:3 mode 0 Output Current (mA) Figure 19. Efficiency vs. Output Current; V =4.3V IN 100 0 Output Current (mA) www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 Figure 16. Efficiency vs. Output Current; V 100 100 0.1 Figure 18. Efficiency vs. Output Current; V 100 1:2 mode 100 0.1 Figure 20. Efficiency vs. Output Current; V 100 2:3 ...

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... Figure 21. Load Transient; V =5.2V BATT 50µs/Div Figure 23. Start-Up Time; V =3V BATT 200µs/Div Figure 25. Line Transient 4.5V to 3.5V BATT f = 1kHz RLOAD = 1kΩ Duty Cycle = 20% 200µs/Div www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 Figure 22. Load Transient; V =3.6V BATT 50µs/Div Figure 24. Start-Up Time; V =5.25V BATT 200µs/Div Revision 1. ...

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... Based on adjusting the amount of charge transferred, this regulation concept delivers the smallest voltage ripple possible. Figure 26. AS1301 - Functional Block Diagram VBATT + C BAT POR Ref Temp State Machine Control Logic CLK EN On Off www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 C C FLY1 FLY2 C2- C1+ C1- C2+ Double-H Bridge Topology V ctrl Soft Start Vmode trig Mode Select & ...

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... If the top-plate voltage is higher than 5V the regulation loop limits the charge transfer to the output. In collaboration with the second flying BATT capacitor this mode features dual-phase operation. Figure 28. 1:2 Operating Mode Charging Phase SW1 SW2 C FLY1 VBATT SW4 www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 FLY1 VOUT C VBATT FLY2 SW3 VOUT C FLY2 VBATT SW3 Revision 1 ...

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... The AS1301 offers thermal shutdown, which prevents eventual damage due to an over-temperature condition. Thermal shutdown will be initiated if the junction temperature exceeds 145°C. If the temperature drops below this value, the thermal shutdown will be released automatically and the device will resume operation. www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 will drop to 0V. During shutdown the output is set to a high-Z condition can be forced Revision 1.05 ...

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... Therefore low ESR capacitors, e.g. tantalum or ceramic, are recommended for the flying capacitors as well. Table 5. Recommended Flying Capacitor Part Number C GRM188R71E224KA88 220nF www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 and output filter capacitor C is used, but it will affect the performance of the charge BAT OUT ripple. Multi-layer ceramic capacitors are recommended since they have OUT voltage during pumping phase ...

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... REF L1 0.03 L2 aaa 0.15 bbb 0.10 ccc 0.10 ddd 0.05 eee 0.08 ggg 0.10 Notes: 1. All dimensions are in millimeters, angle are in degrees the total number of terminals. www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 SEE DETAIL PIN 1 INDEX AREA (D/2 xE/ ccc 0.08 C SIDE VIEW Max Symbol 0.80 D BSC 0 ...

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... AS1301 Datasheet - Figure 30. WL-CSP 8-bumps Package Diagram www.austriamicrosystems.com/DC-DC_Step-Up/AS1301 Revision 1.05 250 typ ...

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... AS1301 Datasheet - Ordering Information The device is available as the standard products shown in Table 6. Ordering Information Ordering Code Marking AS1301A-BWLT 5V/50mA Low Noise Inductorless Boost Converter ASO4 AS1301A-BTDT 5V/50mA Low Noise Inductorless Boost Converter ASO4 Note: All products are RoHS compliant. Buy our products or get free samples online at ICdirect: Technical Support is found at http://www ...

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... AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application ...