Specifications are for TJ = 25°C, VINmax= 40 V for the LM2594 and 60 V for the LM2594HV (unless otherwise noted).| PARAMETER | TEST CONDITIONS | MIN | TYP(1) | MAX(2) | UNIT |
|---|
| SYSTEM PARAMETERS(3) (see Figure 9-13 for test circuit) |
| VOUT | Output voltage | 4.75 V ≤ VIN ≤ VINmax,
0.1 A ≤ ILOAD ≤ 0.5 A | TJ = 25°C | 3.432 | 3.3 | 3.168 | V |
| Over full operating temperature range | 3.465 | | 3.135 |
| η | Efficiency | VIN = 12 V, ILOAD = 0.5 A | | 80% | | |
(1) Typical numbers are at 25°C and represent the most likely norm.
(2) All limits ensured at room temperature and at temperature extremes. All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
(3) External components such as the catch diode, inductor, input and output capacitors, and voltage programming resistors can affect switching regulator system performance. When the LM2594xx is used as shown in the
Figure 9-13 test circuit, system performance is as shown in the system parameters.