Changes to Ordering Guide .......................................................... 18
6/12—Revision 0: Initial Version
Rev. B | Page 2 of 18
Data Sheet
SPECIFICATIONS
ADP1614
V
IN
= 3.6 V, unless otherwise noted. Minimum and maximum values are guaranteed for T
J
= −40°C to +125°C. Typical values specified
are at T
J
= 25°C. All limits at temperature extremes are guaranteed by correlation and characterization using standard statistical quality
control (SQC), unless otherwise noted.
Table 1.
Parameter
SUPPLY
Input Voltage
Quiescent Current
Shutdown
Nonswitching State
Switching State
1
UNDERVOLTAGE LOCKOUT (UVLO)
Undervoltage Lockout Threshold
OUTPUT
Output Voltage
2
Load Regulation
REFERENCE
Feedback Voltage
Line Regulation
ERROR AMPLIFIER
Transconductance
Voltage Gain
FB Pin Bias Current
SWITCH (SW)
On Resistance
Adjustable Peak Current Limit
3
Maximum Adjustable Peak
Current Limit
2
Fixed Peak Current Limit
3
SW Pin Leakage Current
CLRES VOLTAGE
4
Symbol
V
IN
I
QSHDN
I
Q
I
QSW
V
EN
= 0 V, V
SW
= GND
V
FB
= 1.3 V, V
SW
= GND, f
SW
= 1.3 MHz and 650 kHz
f
SW
= 1.3 MHz, V
SW
= GND, no load
f
SW
= 650 kHz, V
SW
= GND, no load
V
IN
rising
V
IN
falling
V
OUT
V
OUT
= 10 V, I
LOAD
= 1 mA to 1 A
V
FB
V
IN
= 2.5 V to 5.5 V
G
MEA
A
V
ΔI = 4 µA
V
FB
= 1.245 V
R
DSON
I
SW
= 1.0 A
R
CL
= 154 kΩ, duty cycle = 70%
R
CL
= 61.9 kΩ, V
IN
= 3.6 V, V
OUT
= 15 V
ADP1614ACPZ-R7
only, duty cycle = 70%
V
SW
= 20 V
ADP1614ACPZ-650-R7
and
ADP1614ACPZ-1.3-R7
I
CLRES
= 5 µA
I
CLRES
= 20 µA
f
SW
D
MAX
V
IL
V
IH
I
EN
ADP1614ACPZ-1.3-R7
and
ADP1614ACPZ-R7,
V
FREQ
≥ 1.6 V
ADP1614ACPZ-650-R7
and
ADP1614ACPZ-R7,
V
FREQ
≤ 0.3 V
COMP = open, V
FB
= 1 V, f
SW
= 1.3 MHz and 650 kHz
FREQ pin is
ADP1614ACPZ-R7
only
V
IN
= 2.5 V to 5.5 V
V
IN
= 2.5 V to 5.5 V
V
EN
= 3.6 V
V
FREQ
= 3.6 V, V
FB
= 1.3 V
V
SS
= 0 V
V
FB
= 1.3 V
1.2250
Test Conditions/Comments
Min
2.5
0.25
700
5.5
3
2.33
2.20
Typ
Max
5.5
1.5
1100
7
4.5
2.5
Unit
V
µA
µA
mA
mA
V
V
V
mV/mA
V
%/V
µA/V
dB
nA
mΩ
A
A
A
µA
V
V
MHz
kHz
%
V
V
µA
µA
µA
V
2.0
V
IN
20
0.005
1.2445 1.2650
0.02
0.2
150
80
1
50
1.30
4
3.10
0.1
1.27
1.22
1.3
650
92
50
100
1.65
0.95
2.50
3.60
10
1.315
1.25
1.4
720
1.225
1.18
1.1
500
88
OSCILLATOR
Oscillator Frequency
Maximum Duty Cycle
EN/FREQ LOGIC THRESHOLD
Input Voltage Low
Input Voltage High
EN Pin Leakage Current
FREQ Pin Leakage Current
SOFT START (SS)
Charging Current
SS Pin Voltage
0.3
1.6
3.4
0.005
3.4
1.17
5.5
1.23
7
1
7
1.29
I
SS
V
SS
Rev. B | Page 3 of 18
ADP1614
Parameter
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
1
2
Data Sheet
Symbol
Test Conditions/Comments
Min
Typ
150
20
Max
Unit
°C
°C
This parameter specifies the average current when the device switches internally with the SW pins (Pin 6 and Pin 7) grounded.
Guaranteed by design.
3
Current limit is a function of duty cycle. For the adjustable current limit versions, it is also a function of the resistor on the CLRES pin. See Figure 10 through Figure 13.
4
The CLRES pin cannot be controlled with a current source. An equivalent resistance should be used.
Rev. B | Page 4 of 18
Data Sheet
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
VIN, EN, FB, FREQ to GND
CLRES to GND
COMP to GND
SS to GND
SW to GND
Operating Junction Temperature Range
Storage Temperature Range
Soldering Conditions
Rating
−0.3 V to +6 V
−0.3 V to VIN
1.0 V to 1.6 V
−0.3 V to +1.3 V
21 V
−40°C to +125°C
−65°C to +150°C
JEDEC J-STD-020
ADP1614
THERMAL RESISTANCE
The junction-to-ambient thermal resistance (θ
JA
) of the package
is specified for the worst-case conditions, that is, a device soldered
in a circuit board for surface-mount packages. The θ
JA
is highly
dependent on the application and board layout. In applications
where high maximum power dissipation exists, attention to
thermal board design is required. The value of θ
JA
may vary,
depending on the printed circuit board (PCB) material, layout,
and environmental conditions.
The boundary conditions for the thermal resistance of the
ADP1614
are modeled under natural convection cooling at
25°C ambient temperature, JESD 51-9, and 1 W power input on a
4-layer board.
Table 3. Thermal Resistance
1
Package Type
10-Lead LFCSP
1
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
Absolute maximum ratings apply individually only, not in
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