Diodes AP7175 - Manual (Page 4)

AP7175
Document number: DS35606 Rev. 3 - 2
4 of 14
www.diodes.com
December 2012
© Diodes Incorporated
NEW PROD
UC
T
AP7175
Electrical Characteristics
(V
CNTL
= 5V, V
IN
= 1.8V, V
OUT
= 1.2V and T
A
= -40 to +85°C, @T
A
= +25°C, unless otherwise specified.)
Symbol Parameter Test Conditions
AP7175
Unit
Min Typ Max
SUPPLY CURRENT
IV
CNTL
V
CNTL
Supply Current EN = V
CNTL
, I
OUT
=0A — 1.0 1.5 mA
I
SD
V
CNTL
Supply Current at
Shutdown
EN = GND — 15 30 µA
V
IN
Supply Current at Shutdown EN = GND, V
IN
=3.65V — — 1 µA
POWER-ON-RESET (POR)
Rising V
CNTL
POR Threshold 2.5 2.7 2.95 V
V
CNTL
POR Hysteresis — 0.4 — V
Rising V
IN
POR Threshold 0.8 0.9 1.0 V
V
IN
POR Hysteresis — 0.5 — V
OUTPUT VOLTAGE
V
REF
Reference Voltage FB = V
OUT
— 0.8 — V
Output Voltage Accuracy
V
CNTL
=3.0 ~ 5.5V, I
OUT
= 0 to 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 — Ω
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 0.26 0.31
V
T
J
= -40 to +125°C 0.42
V OUT = 1.8V
T J = +25°C 0.24 0.29
T J = -40 to +125°C 0.40
V OUT = 1.2V
T J = +25°C 0.23 0.28
T J = -40 to +125°C 0.38
I LIM
Current-Limit Level
T J = +25°C, V OUT = 80% V NOMiNAL
4.5 5.7 6.7 A
T J = -40 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 — uA
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 us
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
Note: 5. Dropout voltage is the voltage difference between the inut and the output at which the output voltage drops 2% below its nominal value.