Diodes AP7173 - Manual (Page 5)

AP7173
1.5A LOW DROPOUT LINEAR REGULATOR WITH
PROGRAMMABLE SOFT-START
AP7173
Document number: DS31369 Rev. 9 - 2
5 of 15
www.diodes.com
April 2011
© Diodes Incorporated
Electrical Characteristics
At V
EN
= 1.1V, V
IN
= V
OUT
+ 0.5V, C
VCC
= 0.1uF, C
IN
= C
OUT
= 10uF, I
OUT
= 50mA, V
VCC
= 5.0V, and T
A
= –40°C to +85°C,
unless otherwise noted. Typical values are at T
A
= +25°C.
Symbol Parameter Test Conditions Min Typ. Max Unit
V
IN
Input Voltage Range V
OUT
+ V
DO
5.5 V
V
VCC
Bias Pin Voltage Range
(Note 7)
2.7 5.5 V
V
REF
Internal Reference
(Adj.)
T
A
= +25 ºC 0.792 0.8 0.808 V
V
OUT
Output Voltage Range V
IN
= 5V, I
OUT
= 1.5A 0.8 3.3 V
Accuracy (Note 8)
2.97V≤V
VCC
≤5.5V,
50mA≤I
OUT
≤1.5A
–2 ±0.5 2 %
ΔV
OUT
/
ΔV
IN
/
V
OUT
Line Regulation V
OUT (NOM)
+ 0.5≤V
IN
, 5.5V 0.03 %/V
ΔV
OUT
/V
OUT
/
ΔI
OUT
Load Regulation 50mA≤I
OUT
≤1.5A 0.09 %/A
V
DO
Dropout Voltage
(Note 9) I
OUT
= 1.5A,V
VCC
–V
OUT(NOM)
≥3.25V 165 270 mV
I
OUT
= 1.5A, V
IN
= V
VCC
1.5 1.7 V
I
CL
Current Limit V
OUT
= 80% x V
OUT (NOM)
2 3 4 A
I
SHORT
Short-Circuit Current V
OUT
< 0.2V 0.6 1 A
I
VCC
Bias Pin Current 1 2 mA
I
SHDN
Shutdown Supply
Current (I
GND
)
V
EN
≤0.4V 1 50 µA
I
FB
Feedback Pin Current –1 0.1 1 µA
PSRR
Power-Supply Rejection
(V
IN
to V
OUT
)
1KHz, I
OUT
= 1A,
V
IN
= 1.8V, V
OUT
= 1.5V
60
dB
300KHz, I
OUT
=1A,
V
IN
= 1.8V, V
OUT
=1.5V
30
Power-SupplyRejection
(V
VCC
to V
OUT
)
1KHz, I
OUT
= 1A,
VI
N
= 1.8V, V
OUT
=1.5V
50
dB
300KHz, I
OUT
= 1A,
V
IN
= 1.8V, V
OUT
=1.5V
30
T
ST
Startup Time R
LOAD
for I
OUT
= 1.0A, C
SS
= open 100 µS
I
SS
Soft-Start Charging
Current
V
SS
= 0.4V 440 nA
V
EN, HI
Enable Input High Level 1.1 5.5 V
V
EN, LO
Enable Input Low Level 0 0.4 V
V
EN, HYS
Enable Pin Hysteresis 50 mV
I
EN
Enable Pin Current V
EN
= 5V 0.1 1 µA
V
PG, TH
PG Trip Threshold V
OUT
decreasing 85 90 94 %V
OUT
V
PG, HYS
PG Trip Hysteresis 3 %V
OUT
V
PG, LO
PG Output Low Voltage I
PG
= 1mA (sinking), V
OUT PG
,
TH
0.3 V
I
PG, LKG
PG Leakage Current V
PG
= 5.25V, V
OUT
>V
PG
,
TH
0.1 1 µA
T
SD
Thermal Shutdown
Temperature Shutdown, temperature increasing +150
ºC
Reset, temperature decreasing +130
θ
JA
Thermal Resistance
Junction-to-Ambient DFN3030-10 (Note 10) 35
o
C/W
SO-8EP (Note 11) 23
θ
JC
Thermal Resistance
Junction-to-Case DFN3030-10 (Note 10) 4.9
o C/W
SO-8EP (Note 11) 1.8
Notes: 7. V VCC should be higher or equal to V
IN
in this chip.
8. Tested at 0.8V; resistor tolerance is not taken into account.
9. Dropout is defined as the voltage from V IN to V OUT when V OUT is 3% below nominal.
10. Test condition for DFN3030-10: Device mounted on FR-4 substrate (2s2p), 2"*2" PCB, with 2oz copper trace thickness and large pad pattern.
11. Test condition for SOP-8L-EP: Device mounted on FR-4 substrate (2s2p), 2"*2" PCB, with 2oz copper trace thickness and large pad pattern.