ADP3604 Просмотр технического описания (PDF) - Analog Devices
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ADP3604 Datasheet PDF : 8 Pages
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ADP3604–SPECIFICATIONS (VIN = 5.0 V @ TA = +25؇C, CP = COUT = 10 F unless otherwise noted)
Parameter
OPERATING SUPPLY RANGE
Symbol
VS
Condition
Min
Typ
Max Units
4.5
5
6
V
SUPPLY CURRENT
Shutdown Mode
OUTPUT
Output Voltage
Load Regulation
Output Resistance2
Output Ripple Voltage3
IS
–40°C < TA < +85°C
–40°C < TA < +85°C
2.9
3.5 mA
3
4
mA
1.5
2.5 mA
1.6
3.0 mA
VO
IO = 60 mA
–3.1
–3.0
–2.91 V
VO
IO = 10 mA to 120 mA, 4.5 V < VIN < 6 V –3.1
–3
–2.88 V
VO
IO = 10 mA to 120 mA, 4.5 V < VIN < 6 V,
0°C < TA < +70°C
–3.12
–3
–2.85 V
VO
IO = 10 mA to 120 mA, 4.5 V < VIN < 6 V,
–40°C < TA < +85°C
–3.2
–3
–2.8 V
∆VO/ IO
IO = 10 mA–60 mA
0.9
mV/mA
IO = 10 mA–120 mA
1.5
mV/mA
RO
8
Ω
VRIPPLE
C1–C3 = 10 µF, ILOAD = 80 mA
25
mV
C1–C3 = 10 µF, ILOAD = 120 mA
55
mV
SWITCHING FREQUENCY
FS
–40°C < TA < +85°C
100
120
135 kHz
96
120
140 kHz
SHUTDOWN
Logic Input High
Input Current
Logic Input Low
Input Current
Turn-On-Time
Turn-Off-Time
VIH
IIH
VIL
IIL
tON
Figure 1, IL = 120 mA
tOFF
Figure 1, IL = 120 mA
2.4
1
1
5
5
V
µA
0.4 V
µA
ms
ms
NOTES
1Capacitors C1 and C2 used in the test circuit are 10 µF with 0.1 Ω ESR. Capacitors with higher ESR may reduce output voltage and efficiency.
2Open-loop output resistance.
3See Figure 1 conditions.
All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods.
Specifications subject to change without notice.
PIN DESCRIPTION
ABSOLUTE MAXIMUM RATINGS1
(TA = +25°C unless otherwise noted)
Pin Function
Input Voltage (V+ to GND, GND to OUT) . . . . . . . . . +7.5 V 1
CP+, Pump Capacitor Positive Input.
Output Short Circuit Protection . . . . . . . . . . . . . . . . . . . .1 sec 2 Ground.
Power Dissipation, SO-8 . . . . . . . . . . . . . . . . . . . . . . . 660 mW 3
θJA2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C/W 4
θJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41°C/W
Operating Temperature Range . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature Range (Soldering 10 sec) . . . . . . . . +300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C 5
NOTES
1This is a stress rating only and functional operation of the device at these or any
other conditions above those indicated in the operation section of this specification
is not implied. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
CP–, Pump Capacitor Negative Input.
Shutdown, Logic Level Shutdown Pin. Application of a
logic low to this pin will place the regulator in normal
operation. The device will be put into shutdown mode
with the shutdown pin pulled to VIN. In Shutdown
mode the charge pump is turned off. Connect to ground
for normal operation.
VSENSE , Output Voltage Sense Line. This is used to im-
prove load regulation performance by eliminating IR
drop on the output traces. See application section for
more detail. For normal operation, connect Pin 5 to
VOUT (Pin 7).
2θJA is specified for worst case conditions with device soldered on a circuit board.
6
NC, No Internal Electrical Connection.
ORDERING GUIDE
7
Model
Temperature Range
ADP3604AR –40°C to +85°C
*SO = Small Outline Package.
Package Option*
SO-8
8
VOUT, Output Pin. Regulated negative output voltage.
Connect a low ESR capacitor between this pin and de-
vice GND.
VIN, Positive Supply Input when 4.5 V ≤ VIN ≤ 6 V.
Connect a low-ESR bypass capacitor between this pin
and the device ground pin.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the ADP3604 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
–2–
REV. 0
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