DATASHEET ISL80138 FN7969 Rev 2.00 40V, High Accuracy, Low Quiescent Current, 150mA Linear Regulator Feb 20, 2019 The ISL80138 is a high voltage, adjustable V low quiescent OUT Features current linear regulator ideally suited for always-on and Wide V range of 6V to 40V keep alive applications. The ISL80138 operates from an IN input voltage of +6V to +40V under normal operating Adjustable output voltage from 2.5V to 12V conditions and consumes only 18A of quiescent current at no Ensured 150mA output current load. Ultra low 18A typical quiescent current The ISL80138 features an EN pin that can be used to put the Low 2A of typical shutdown current device into a low-quiescent current shutdown mode where it draws only 2A of supply current. The device features 1% accurate voltage reference (over temperature, load) over-temperature shutdown and current limit protection. Low dropout voltage of 295mV at 150mA The ISL80138 is rated to operate across the -40C to +125C Low 26V noise RMS temperature range and is available in a 14 lead HTSSOP with 40V tolerant logic level (TTL/CMOS) enable input an exposed pad package. Stable operation with 10F output capacitor Related Literature 5kV ESD HBM rated For a full list of related documents, visit our website: Thermal shutdown and current limit protection ISL80138 device page Thermally enhanced 14 Ld exposed pad HTSSOP package Applications Industrial Telecommunications 25 20 15 V = 14V V = 12V IN OUT OUT IN 10 C R IN 1 C OUT EPAD 0.1F 10F EN (GND) ADJ 5 R 2 GND 0 -50 0 50 100 150 TEMPERATURE (C) FIGURE 1. TYPICAL APPLICATION FIGURE 2. QUIESCENT CURRENT vs TEMPERATURE (AT UNITY GAIN). V = 14V IN FN7969 Rev 2.00 Page 1 of 11 Feb 20, 2019 QUIESCENT CURRENT (A)ISL80138 Block Diagram VIN EN CONTROL LOGIC FET DRIVER - EA WITH CURRENT + LIMIT VOUT REFERENCE THERMAL + SENSOR SOFT-START ADJ GND Ordering Information PART NUMBER PART TEMP. RANGE ENABLE OUTPUT TAPE AND REEL PACKAGE PKG. (Notes 2, 3) MARKING (C) PIN VOLTAGE (V) (Units) (Note 1) (RoHS Compliant) DWG. ISL80138IVEAJZ 80138 IAJZ -40 to +125 Yes ADJ - 14 Ld HTSSOP M14.173B ISL80138IVEAJZ-T 80138 IAJZ -40 to +125 Yes ADJ 2.5k 14 Ld HTSSOP M14.173B ISL80138IVEAJZ-T7A 80138 IAJZ -40 to +125 Yes ADJ 250 14 Ld HTSSOP M14.173B ISL80138EVAL1Z Evaluation Platform NOTES: 1. See TB347 for details about reel specifications. 2. These Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), see the ISL80138 device page. For more information about MSL, see TB363. TABLE 1. KEY DIFFERENCES IN FAMILY OF 40V LDO PARTS PART NUMBER MINIMUM I IC PACKAGE OUT ISL80410 150mA 8 Ld EPSOIC ISL80136 50mA 8 Ld EPSOIC ISL80138 150mA 14 LD HTSSOP FN7969 Rev 2.00 Page 2 of 11 Feb 20, 2019