Instruction Manual
AP7176B
Document number: DS35818 Rev.3 - 2
4 of 14
www.diodes.com
April 2014
© Diodes Incorporated
NEW PRODUCT
A
P7176B
Electrical Characteristics (cont.) (Specifications apply over V
CNTL
= 5V, V
IN
= 1.8V, V
OUT
= 1.2V and T
A
= -40°C to +85°C, typical
values @T
A
= +25°C, unless otherwise specified.)
Symbol Parameter Conditions
AP7176B
Unit
Min Typ Max
OUTPUT VOLTAGE
V
REF
Reference Voltage FB=V
OUT
— 0.8 — V
Output Voltage Accuracy
V
CNTL
= 3.0 ~ 5.5V, I
OUT
= 0~3A,
T
J
= -40 to +125°C
-1.5 — +1.5 %
Load Regulation I
OUT
=0A to 3A — 0.06 0.25 %
Line Regulation I
OUT
=10mA, V
CNTL
= 3.0 to 5.5V -0.15 — +0.15 %/V
V
OUT
Pull-low Resistance V
CNTL
= 3.3V, V
EN
= 0V, V
OUT
<0.8V — 10 —
FB Input Current V
FB
= 0.8V -100 — +100 nA
DROPOUT VOLTAGE
V
DROP
V
IN
-to-V
OUT
Dropout Voltage
(Note 5)
V
CNTL
= 5.0V,
I
OUT
= 3A
V
OUT
= 2.5V
T
J
= 25°C — 0.33 0.38
V
T
J
= -40°C to +125°C — 0.53
V
OUT
= 1.8V
T
J
= +25°C — 0.31 0.36
T
J
= -40°C to +125°C — 0.50
V
OUT
= 1.2V
T
J
= +25°C — 0.30 0.35
T
J
= -40°C to +125°C — — 0.48
I
LIM
Current-Limit Level
T
J
= +25°C, V
OUT
= 80% V
NOMINAL
4.5 5.7 6.7 A
T
J
= -40°C to +125°C 4.2 — — A
PROTECTIONS
I
SHORT
Short Current-Limit Level V
FB
< 0.2V — 1.1 — A
T
SD
Thermal Shutdown Temperature T
J
rising — 170 — °C
Thermal Shutdown Hysteresis — 50 — °C
ENABLE AND SOFT-START
EN Logic High Threshold Voltage V
EN
rising 0.5 0.8 1.1 V
EN Hysteresis — 0.1 — V
EN Pull-High Current EN = GND — 5 — µA
T
SS
Soft-Start Interval 0.3 0.6 1.2 ms
Turn On Delay From being enabled to V
OUT
rising 10% 200 350 500 µs
POWER-GOOD AND DELAY
V
THPG
Rising PG Threshold Voltage V
FB
rising 90 92 95 %
PG Threshold Hysteresis — 8 — %
PG Pull-low Voltage PG sinks 5mA — 0.25 0.4 V
PG Debounce Interval V
FB
< falling PG voltage threshold — 10 — µs
PG Delay Time From V
FB
= V
THPG
to rising edge of the V
PG
1 2 4 ms
THERMAL CHARACTERISTIC
JA
Thermal Resistance Junction-to-
Ambient
SO-8EP (Note 6) — 70 —
°C/W
MSOP-8EP (Note 7) — 80 —
°C/W
U-DFN3030-10 (Note 6) — 60 —
°C/W
JC
Thermal Resistance Junction-to-
Ambient
SO-8EP (Note 6) —
30 —
°C/W
MSOP-8EP (Note 7) — 30 —
°C/W
U-DFN3030-10 (Note 6) — 20 —
°C/W
Notes: 5. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value.
6. Device mounted on 2"*2" FR-4 substrate PC board, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground
plane.
7. Device mounted on 2"*2" FR-4 substrate PC board, 2oz copper,with minimum recommended pad layout.