AN30181A-VL Panasonic Electronic Components, AN30181A-VL Datasheet - Page 14

• Manufacturer Part Number: AN30181A-VL
• Description: Low Dropout Controllers - LDO Vout 1.2-1.8 800mA 2Ch Buck DC-DC
• Manufacturer: Panasonic Electronic Components

Specifications of AN30181A-VL

• Rohs: yes
• Input Voltage Max: 5.5 V
• Output Voltage: 1.2 v to 1.8 V
• Output Current: 0.8 A
• Load Regulation: 10 mV
• Number Of Outputs: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: HQFN-24
• Input Voltage Min: 2.9 V
• Maximum Power Dissipation: 1.472 W
• Minimum Operating Temperature: - 40 C
• Supply Current: 0.8 A

3. Protection
OPERATION (Continued)
Over-current limit function
Ground-short protection function
DC-DC1, DC-DC2 and BUF have over-current limit circuits respectively. This function limits the output current which
exceeds the setup value. The over-current limit characteristics are as follows.
DC-DC1 and DC-DC2 have ground-short detection circuits respectively. When output voltage falls to 50% or lower
of target value (DC-DC1 : 0.6 V, DC-DC2 : 0.9 V), it shifts to the protection sequence shown in [3.Protection].
However, even if BUF pin shorts to GND, BUF does not shift to the protection sequence.
Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed.
The output currents of DC-DC1 and DC-DC2 are limited to 1.6 A(typ) regardless of the output voltage.
BUF has limit characteristics, which the output current decreases as the output voltage falls.
The peak input current is 40 mA(typ). The input current at BUF = 0 V is 10 mA(typ).
½ V
V
voltage
Output
O
V
O
0
O
= 1.2 V(DC-DC1), 1.8 V(DC-DC2)
Ground-short
detection level
a) DC-DC1/2
1.6A(typ)
0.8A to 2.0 A
Output
current
14
0.9 V
voltage
Output
0
10 mA
b) BUF
AN30181A
40 mA
Output
current
Ver. BEB