p1686 Unisonic Technologies, p1686 Datasheet - Page 4

• Manufacturer Part Number: p1686
• Description: 600khz, 3a Step-down Current Mdoe Switching Regulator
• Manufacturer: Unisonic Technologies

P1686
Input Supply Voltage
Boost Pin Above V
Boost Pin Voltage
EN Pin Voltage
FB Pin Voltage
FB Pin Current
SYNC Pin Current
Junction Temperature
Operating Temperature
Storage Temperature
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Junction to Ambient
(V
Operating Input Voltage
Maximum Switch Current Limit
Oscillator Frequency
Switch On Voltage Drop
V
V
Standby Current
FB Input Current
Feedback Voltage
Feedback Voltage Line Regulation
FB to V
FB to V
(Note 3)
V
V
V
conductance
V
Threshold
V
Maximum Switch Duty Cycle
Minimum Boost Voltage Above
Switch (Note 3)
Boost Current
Enable Input Threshold Voltage
Enable Input Bias Current
IN
IN
COMP
COMP
COMP
COMP
COMP
IN
Undervoltage Lockout
Supply Current
= 12V, V
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
Pin Source Current
Pin Sink Current
Pin to Switch Current Trans
Pin Maximum Switching
Pin Threshold
COMP
COMP
PARAMETER
UNISONIC TECHNOLOGIES CO., LTD
Voltage Gain (Note 3)
Transconductance
www.unisonic.com.tw
COMP
= 0.8V, V
SW
PARAMETER
PARAMETER
BS
= V
IN
+ 5V, EN = tied to V
SYMBOL
V
V
I
I
V
BOOST
Q(OFF)
f
BOOST
V
I
D(SW)
V
V
OSC
UVLO
I
I
SW
I
I
FB
IH
Q
IL
IN
IH
IL
I
T
V
V
3V < V
0.4V ≤ V
Δ I
V
V
Duty cycle = 0%
I
V
I
I
I
I
I
EN = 60mV above threshold
EN = 100mV below threshold
SW
SW
SW
SW
SW
SW
SW
A
FB
EN
FB
FB
COMP
COMP
=
= 3A
= 3A
= 3A, 0°C ≤ T
=2.5A, T
= 1A
= 3A, 0°C ≤ T
=2.5A, T
= V
= V
= V
= 0V, V
25°C
= 1.2V, I
IN
OUT(NOM)
OUT(NOM)
OUT(NOM)
= ± 10μA
IN
COMP
< 16V (Note 2)
TEST CONDITIONS
, SYNC = 0, SW = open. T
IN
A
A
(V
SYMBOL
SYMBOL
= V
≤ 0.9V
< 0°C
< 0°C
BST
SW
+ 17%
-17%
+ 17%
I
T
V
T
V
SYNC
V
V
θ
I
T
BOOST
A
A
OPR
STG
BST
FB
EN
JA
= 400mA
FB
IN
-V
J
≤ 85°C
≤ 85°C
SW
= 16V, V
)
LINEAR INTEGRATED CIRCUIT
SW
= 0V
A
-65 ~ +150
-0.3 ~ +28
-0.3 ~ +32
-0.3 ~ +16
RATINGS
RATINGS
-40 ~ +85
-0.3 ~ +6
= T
36.5
150
1.176 1.2
16
J
MIN
550
150
500
1
1
85
= -40°C ~ 85°C.)
3
-0.25
TYP
2.60
0.35
600
330
350
850
3.0
1.0
2.5
0.9
1.8
2.5
+3
70
70
10
30
5
5
16
1.224
-0.50
MAX UNITS
1300
750
110
110
2.7
0.4
(Note 1)
45
15
45
15
3
5
QW-R103-039.C
UNITS
UNITS
°C/W
mA
mA
°C
°C
°C
V
V
V
V
V
mV/V
μMho
kHz
A/V
mV
mA
mA
μA
μA
μA
μA
μA
μA
4 of 6
%
V
A
V
V
V
V
V
V
V