E-L5973D013TR STMicroelectronics, E-L5973D013TR Datasheet
E-L5973D013TR
Specifications of E-L5973D013TR
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E-L5973D013TR Summary of contents
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... A switch step down switching regulator Description The L5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2 able to deliver more than current to the load depending on the application conditions. The output voltage can be set from 1.235 ...
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... Contents 1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Application ideas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2/17 ...
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... D98IN955 Regulator output. Master/slave synchronization. A logical signal (active high) disables the device. If INH not used the pin must be grounded. When it is open an internal pull-up disable the device. E/A output for frequency compensation. Feedback input. Connecting directly to this pin results in an output voltage of 1 ...
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... Electrical data 2 Electrical data 2.1 Maximum ratings Table 2. Absolute maximum ratings Symbol V Input voltage 8 Output DC voltage V 1 Output peak voltage 0.1 µs I Maximum output current Analog pins INH 3 V SYNC 2 P Power dissipation at T TOT T Operating junction temperature range J T Storage temperature range STG 2 ...
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... J Symbol Operating input V CC voltage range Mosfet on R DS(on) Resistance Maximum limiting I l current f Switching frequency s Duty cycle Dynamic characteristics (see test circuit ). V Voltage feedback 5 h Efficiency DC characteristics Total operating I qop quiescent current I Quiescent current q Total stand-by I qst-by quiescent current Inhibit ...
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... ( 0.74 V sync V = 2.33 V sync source no load 1.65 V sync REF REF REF from -40 to 125 °C. Specification over the -40 to +125 T J L5973D Min Typ Max Unit µA 2 2 REF 0.74 V 0.11 0.25 mA 0.21 0. µs 0.20 ...
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... Fsw (KHz) 260 250 240 Vcc = 12V 230 Vcc=12V 220 -50 50 100 150 Tj (°C) 100 150 50 Tj (°C) Typical characteristics Shutdown current vs junction temperature Vcc = 12V 0 50 100 Tj (°C) Switching frequency vs junction temperature Vcc = 12V 100 Tj (°C) 150 150 7/17 ...
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... Figure 9. Tj (°C) 120 110 Vo=3.3V Vo=2.5V 100 90 80 Vo=1. 0.2 0.4 0.6 0.8 Io(A) Figure 11. Efficiency vs output current 91 89 Vo=3. 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 Io (A) Junction temperature vs output current ...
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... L5973D 5 Application circuit In figure 6 is shown the demonstration board application circuit, where the input supply voltage can range from due to the rated voltage of the input capacitor and CC the output voltage is adjustable from 1.235 Figure 12. Demonstration board application circuit VIN = 4.4V to 25V C1 10µ ...
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... Application circuit Figure 13. PCB layout (component side) Figure 14. PCB layout (bottom side) Figure 15. PCB layout (front side) Below some graphs show the T output voltage and some efficiency measurements. 10/17 versus output current in different conditions of the input and J L5973D ...
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... L5973D 6 Application ideas Figure 16. Positive buck-boost regulator Figure 17. Buck-boost regulator Figure 18. Dual output voltage with auxiliary winding Application ideas 11/17 ...
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... Application ideas When an output voltage below the internal reference (1.235 V) is required, the circuit reported in the figure 18 can been used. In this case the minimum voltage reachable is 0.6 V and can be easily calculated with the following formula [(V OUT FB REF If the load is not present, a resistor connected between V ...
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... In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect . The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK trademark. ...
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... Package mechanical data Table 6. HSOP8 mechanical data Dim ccc Figure 20. Package dimensions 14/17 mm Min Typ Max 1.70 0.00 0.10 1.25 0.31 0.51 0.17 0.25 4.80 4.90 5.00 3 3.1 3.2 5.80 6.00 6.20 3.80 3.90 4.00 2.31 2.41 2.51 1.27 0.25 0.50 ...
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... L5973D 8 Order code Table 7. Order code Part number L5973D L5973D013TR Package HSOP8 (Exposed pad) HSOP8 (Exposed pad) Order code Packaging Tube Tape and reel 15/17 ...
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... Revision 10 Updated package information Electrical characteristic 11 Figure 19 added, new template 12 Typo in order codes 13 Updated Table 4 on page 5 14 Updated Section 5: Application circuit on page 9 15 Updated Table 6 on page 14 16 Updated Table 6 on page 14 Changes Table 4 updated, new application idea L5973D ...
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