|
|
PDF ADP5300 Data sheet ( Hoja de datos )
| Número de pieza | ADP5300 | |
| Descripción | Ultralow Power Step-Down Regulator | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ADP5300 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
|
No Preview Available !
Data Sheet
50 mA/500 mA, High Efficiency, Ultralow
Power Step-Down Regulator
ADP5300
FEATURES
Input supply voltage range: 2.15 V to 6.50 V
Operates down to 2.00 V voltage
Ultralow 180 nA quiescent current
Selectable output voltage of 0.8 V to 5.0 V
±1.5% output accuracy over full temperature range in
PWM mode
Selectable hysteresis mode or PWM operation mode
Output current
Up to 50 mA in hysteresis mode
Up to 500 mA in PWM mode
VOUTOK flag monitors the output voltage
Ultrafast stop switching control
100% duty cycle operation mode
2.0 MHz typical switching frequency in PWM mode with
optional SYNC clock range from 1.5 MHz to 2.5 MHz
Quick output discharge (QOD) option
UVLO, OCP, and TSD protection
10-lead, 3 mm × 3 mm LFCSP
−40°C to +125°C operating temperature range
APPLICATIONS
Energy (gas and water) metering
Portable and battery-powered equipment
Medical applications
Keep-alive power supplies
GENERAL DESCRIPTION
The ADP5300 is a high efficiency, ultralow quiescent current
step-down regulatorthat draws only 180 nA quiescent current
to regulate the output.
The ADP5300 runs from an inputsupplyvoltage range of 2.15 V
to 6.50 V, allowing the use ofmultiple alkaline orNiMH, Li-Ion
cells, or otherpowersources.The output voltage is selectable from
0.8 V to 5.0 V by an external VID resistor and factory fuse. The
total solution requires only fourtiny external components.
The ADP5300 can operate betweenhysteresis mode and pulse-
width modulation (PWM) mode viathe SYNC/MODE pin.The
regulator in hysteresis mode achieves excellent efficiency at a
power of less than 1 mW and provides up to 50 mA of output
current. The regulator in PWM mode producesa lower output
ripple and suppliesupto 500 mAof output current.The flexible
configuration capability during operationofthe device enables
very efficientpowermanagement to meetboth the longest battery
life and low system noise requirements.
TYPICAL APPLICATION CIRCUIT
VIN = 2.15 TO 6.50V
10µF
ON
OFF
PWM
HYS
STOP
SW
PVIN
SW
ADP5300
EN PGND
SYNC/MODE FB
STOP
AGND
VOUTOK
VID
EPAD
2.2µH
10µF
VOUT
VID0: 1.2V VID8: 2.5V
VID1: 1.5V VID9: 2.6V
VID2: 1.8V VID10: 2.7V
VID3: 2.0V VID11: 2.8V
R0
VID4: 2.1V VID12: 2.9V
VID5: 2.2V VID13: 3.0V
VID6: 2.3V VID14: 3.3V
VID7: 2.4V VID15: 3.6V
Figure 1.
The ADP5300 contains a VOUTOK flag, which monitors the
output voltage and runs at a 2 MHz switching frequency in
PWM mode. SYNC/MODE can be synchronized to an external
clock from 1.5 MHz to 2.5 MHz.
The ADP5300 includes anSTOP pinthat candisable the regulator
switching temporarily, in this way a quiet system environment
can be achieved to benefit noise sensitive circuitry, such as data
conversion, RF data transmisson, and analog sensing.
Other key features in the ADP5300 include separate enabling,
QOD, and safety features such as overcurrent protection (OCP),
thermal shutdown (TSD),and inputundervoltage lockout(UVLO).
The ADP5300 is available in a 10-lead, 3 mm × 3 mm LFCSP
rated for a −40°C to +125°C operating temperature range.
Multifunction pin names may be referenced by their relevant
function only.
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks andregistered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2015–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
Data Sheet
Parameter
Hysteresis Mode
Fixed VID Code Threshold Accuracy
from Active Mode to Standby Mode
Adjustable VID Code Threshold
Accuracy from Active Mode to
Standby Mode
Hysteresis of Threshold Accuracy
from Active Mode to Standby Mode
Feedback Bias Current
SW PIN
High-Side Power FET On Resistance
Low-Side Power FET On Resistance
Current Limit in PWM Mode
Peak Current in Hysteresis Mode
Minimum On Time
VOUTOK PIN
Monitor Threshold
Monitor Hysteresis
Monitor Rising Delay
Monitor Falling Delay
Leakage Current
Output Low Voltage
SOFT START
Default Soft Start Time
Symbol
VFB_HYS_FIX
VFB_HYS_ADJ
Min Typ Max
−0.75
−2.5
−3
+0.75
+2.5
+3
VFB_HYS (HYS)
IFB
1
66 95
25 45
RDS (ON) H
RDS (ON) L
ILIM_PWM
ILIM_HYS
tMIN_ON
386 520
299 470
800 1000 1200
265
40 70
VOUTOK (RISE)
VOUTOK (HYS)
tVOUTOK_RISE
tVOUTOK_FALL
IVOUTOK_LEAKAGE
VOUTOK_LOW
87
90 93
3
40
10
0.1 1
50 80
tSS 350
Start-Up Delay
tSTART_DELAY
2
COUT DISCHARGE SWITCH ON RESISTANCE
THERMAL SHUTDOWN
Threshold
Hysteresis
RDIS
TSHDN
THYS
290
142
127
Unit
%
%
%
%
nA
nA
mΩ
mΩ
mA
mA
ns
%
%
μs
μs
μA
mV
μs
ms
Ω
°C
°C
ADP5300
Test Conditions/Comments
TJ = 25°C
−40°C ≤ TJ ≤ +125°C
−40°C ≤ TJ ≤ +125°C
Output Option 0, VOUT = 2.5 V
Output Option 1, VOUT = 1.3 V
Pin to pin measurement
Pin to pin measurement
SYNC/MODE = high
SYNC/MODE = low
IVOUTOK = 100 μA
Factory trim, 1 bit (350 μs and
2800 μs)
Delay from the EN pin being
pulled high
Rev. A | Page 5 of 21
5 Page 
Data Sheet
2.10
2.08
2.06
RISING
2.04
2.02
2.00
FALLING
1.98
1.96
–40
25 85
TEMPERATURE (°C)
125
Figure 22. UVLO Threshold, Rising and Falling vs. Temperature
VOUT
1
SW
2
IL
4
CH1 100mV
CH2 2.00V
M 200µs A CH4 140mA
CH4 500mA Ω T 39.60%
Figure 23. Steady Waveform of Hysteresis Mode, ILOAD = 1 mA
(IL is the Inductor Current)
VIN
3
VOUT
1
IL
4
SW
2
CH1 1.00V
CH3 2.00V
CH2 5.00V
M 200µs A CH1
CH4 500mA Ω T 50.60%
Figure 24. Soft Start, ILOAD = 300 mA
(IL is the Inductor Current)
1.22V
ADP5300
2.3
–40ºC
2.2 +25ºC
+125ºC
2.1
2.0
1.9
1.8
1.7
2.3
2.9 3.5 4.1 4.7 5.3 5.9
VIN (V)
Figure 25. Switching Frequency vs. VIN
6.5
1
VOUT (AC)
IL
4
2
SW
CH1 10.0mV
CH2 2.00V
CH4 200mA Ω
M 400ns A CH2 2.72V
T 90.60%
Figure 26. Steady Waveform of PWM Mode, ILOAD = 300 mA
(IL is the Inductor Current)
VIN
VOUT
1
IL
4
SW
2
CH1 500mV
CH2 5.00V
M 100µs A CH1 1.05V
CH3 2.00V
CH4 500mA Ω T 40.00%
Figure 27. Soft Start with Precharge Function
(IL is the Inductor Current)
Rev. A | Page 11 of 21
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet ADP5300.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ADP5300 | Ultralow Power Step-Down Regulator | Analog Devices |
| ADP5301 | Ultralow Power Step-Down Regulator | Analog Devices |
| ADP5302 | Ultralow Power Step-Down Regulator | Analog Devices |
| ADP5303 | Ultralow Power Step-Down Regulator | Analog Devices |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |