E-L5973ADTR STMicroelectronics, E-L5973ADTR Datasheet - Page 12

• Manufacturer Part Number: E-L5973ADTR
• Description: Switching Converters, Regulators & Controllers 1.235 to 35V Step-Dn
• Manufacturer: STMicroelectronics

Specifications of E-L5973ADTR

• Output Voltage: 35 V
• Mounting Style: SMD/SMT
• Package / Case: HSOP-8
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Functional description
4.7
4.8
12/22
Figure 7.
Inhibit function
The inhibit feature allows to put in stand-by mode the device. With INH pin higher than 2.2 V
the device is disabled and the power consumption is reduced to less than 100 μA. With INH
pin lower than 0.8 V, the device is enabled. If the INH pin is left floating, an internal pull up
ensures that the voltage at the pin reaches the inhibit threshold and the device is disabled.
The pin is also Vcc compatible.
Thermal shutdown
The shutdown block generates a signal that turns off the power stage if the temperature of
the chip goes higher than a fixed internal threshold (150 °C). The sensing element of the
chip is very close to the PDMOS area, so ensuring an accurate and fast temperature
detection. An hysteresis of approximately 20 °C avoids that the devices turns on and off
continuously
D00IN1133
DRIVE
DRAIN
STOP
Driving circuitry
Vgs max
CONTROL
ON/OFF
CLAMP
GATE
Doc ID 9552 Rev 9
OFF
ON
DRAIN
I
I
OFF
ON
VCC
PDMOS
L
ESR
C
VOUT
I
LOAD
L5973AD