L4995AJ STMicroelectronics, L4995AJ Datasheet - Page 6

• Manufacturer Part Number: L4995AJ
• Description: IC REG LDO 5V 500MA POWERSSO-12
• Manufacturer: STMicroelectronics

Specifications of L4995AJ

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: 5.6 ~ 31 V
• Voltage - Dropout (typical): 0.27V @ 400mA
• Number Of Regulators: 1
• Current - Output: 500mA
• Current - Limit (min): 600mA
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: PowerSSO-12
• Number Of Outputs: 1
• Polarity: Positive
• Output Voltage: 5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.5 V at 400 mA
• Output Current: 0.5 A
• Line Regulation: 25 mV
• Load Regulation: 25 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Block diagrams and pins descriptions
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Figure 3.
Table 2.
name
GND
V
Pin
R
NC
V
E
W
-
cw
es
cr
n
i
V
VEn
PowerSSO-12
S
Block diagram of L4995R
Pins descriptions
Is
2, 4, 8
pin #
TAB
1
3
5
6
7
9
Vs
Vcr
Vcr
PowerSSO-24
3, 5, 6, 9, 11
TAB, 1, 12
13, 14, 15
19, 20, 21
22, 23, 24
16, 17, 18
Doc ID 13103 Rev 10
pin #
Reference
Voltage
2
4
Start up
Enable input (L4995 and L4996A only, otherwise not
connected).
If high regulator, watchdog and reset are operating. If
low regulator, watchdog and reset are shutdown.
Connect to Vs if not used.
Not connected.
Ground reference.
Substrate of the chip: connect the pins or the TAB to
GND.
Reset output.
It is pulled down when output voltage goes below V
or frequency at Wi is too low. Leave floating if not used.
Reset timing adjust.
A capacitor between V
delay time (trd). Leave floating if Reset is not used.
Watchdog timer adjust (L4995 only, otherwise not
connected).
A capacitor between V
response of the watchdog monitor.
Watchdog input (L4995 only, otherwise not connected).
If the frequency at this input pin is too low, the Reset
output is activated.
GND
100mV + _
Low Voltage
Reset
1.25V
cr
cw
Function
pin and GND. Sets the reset
pin and GND. Sets the time
V
Vo
Vos
Res
Res
Vo
Io
L4995
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