ISL80138_14 Datasheet, PDF (1/9 Pages) Intersil Corporation – 40V, Low Quiescent Current, 150mA Linear Regulator

40V, Low Quiescent Current, 150mA Linear Regulator
ISL80138
The ISL80138 is a high voltage, adjustable V_OUT low quiescent
current linear regulator ideally suited for “always-on” and “keep
alive” applications. The ISL80138 operates from an input voltage
of +6V to +40V under normal operating conditions and
consumes only 18µA of quiescent current at no load.
The ISL80138 features an EN pin that can be used to put the
device into a low-quiescent current shutdown mode where it
draws only 2µA of supply current. The device features
over-temperature shutdown and current limit protection.
The ISL80138 is rated over the -40°C to +125°C temperature
range and is available in a 14 lead HTSSOP with an exposed pad
package.
TABLE 1. KEY DIFFERENCES IN FAMILY OF 40V LDO PARTS
PART NUMBER
ISL80136
MINIMUM I_OUT
50mA
ADJ OR FIXED V_OUT
ADJ
ISL80138
150mA
ADJ
Related Literature
• See FN7970, “ISL80136 40V, Low Quiescent Current, 50mA
Linear Regulator”
Features
• Wide V_IN Range of 6V to 40V
• Adjustable Output Voltage from 2.5V to 12V
• Guaranteed 150mA Output Current
• Ultra Low 18µA Typical Quiescent Current
• Low 2µA of Typical Shutdown Current
• ±1% Accurate Voltage Reference
• Low Dropout Voltage of 295mV at 150mA
• 40V Tolerant Logic Level (TTL/CMOS) Enable Input
• Stable Operation with 10µF Output Capacitor
• 5kV ESD HBM Rated
• Thermal Shutdown and Current Limit Protection
• Thermally Enhanced 14 Ld Exposed Pad HTSSOP Package
Applications
• Industrial
• Telecommunications
V_IN = 14V
C_IN
0.1µF
V_OUT = 12V
IN
OUT
R1
EPAD
EN _{(GND) ADJ}
C_OUT
10µF
R2
GND
FIGURE 1. TYPICAL APPLICATION
25
20
15
10
5
0
-50
0
50
100
150
TEMPERATURE (°C)
FIGURE 2. QUIESCENT CURRENT vs TEMPERATURE (AT UNITY
GAIN). V_IN = 14V
January 11, 2012
1
FN7969.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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