ISL80136 Datasheet, PDF (1/9 Pages) Intersil Corporation – 40V, Low Quiescent Current, 50mA Linear Regulator

40V, Low Quiescent Current, 50mA Linear Regulator
ISL80136
The ISL80136 is a high voltage, low quiescent current linear
regulator ideally suited for “always-on” and “keep alive”
applications. The ISL80136 operates from an input voltage of
+6V to +40V under normal operating conditions consuming only
18µA of quiescent current at no load.
The ISL80136 offers adjustable output voltages from 2.5V to
12V. It features an EN pin that can be used to put the device into
a low-quiescent current shutdown mode where it draws only
1.8µA of supply current. The device features over-temperature
shutdown and current limit protection.
The ISL80136 is rated over the -40°C to +125°C temperature
range and is available in an 8 lead EPSOIC with exposed pad
package.
TABLE 1. KEY DIFFERENCES IN FAMILY OF 40V LDO PARTS
PART NUMBER
ISL80136
MIN. I_OUT
50mA
ADJ OR FIXED V_OUT
ADJ
ISL80138
150mA
ADJ
Features
• Wide VIN Range of 6V to 40V
• Adjustable Output Voltage from 2.5V to 12V
• Guaranteed 50mA Output Current
• Ultra Low 18µA Typical Quiescent Current
• Low 1.8µA of Typical Shutdown Current
• ±1% Accurate Voltage Reference
• Low Dropout Voltage of 120mV at 50mA
• 40V Tolerant Logic Level (TTL/CMOS) Enable Input
• Stable Operation with 10µF Output Capacitor
• 5kV ESD HBM Rated
• Thermal Shutdown and Current Limit Protection
Applications
• Industrial
• Networking
• Telecom
Related Literature
• See FN7969, “ISL80138 40V, Low Quiescent Current, 150mA
Linear Regulator”
CIN
0.1µF
IN
OUT
R1
EN
PAD
ADJ
(GND)
R2
GND
COUT
10µF
FIGURE 1. TYPICAL APPLICATION
70
60
50
LOAD = 50mA
40
30
20
LOAD = 0mA
10
0
-50
0
50
100
150
TEMPERATURE (°C)
FIGURE 2. QUIESCENT CURRENT vs LOAD CURRENT (AT UNITY
GAIN), V_IN = 14V
December 15, 2011
1
FN7970.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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