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PDF AS1383 Data sheet ( Hoja de datos )
| Número de pieza | AS1383 | |
| Descripción | DC-DC Step-Up Converter | |
| Fabricantes | ams | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AS1383 (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
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AS1383
200mA, 3.5MHz DC-DC Step-Up
Converter
General Description
The AS1383 is a synchronous, high efficiency DC-DC boost
converter running at a constant frequency of 3.5MHz. This very
high oscillator frequency allows the usage of a low profile
inductor with only 1μH. This results in a very small board space
requirement for the complete solutions including all external
components.
AS1383 generates an output voltage range from 2.7V to 5.0V.
In adjustable output voltage variant, the output voltage is
selected with an external resistor divider. In fixed output
voltage variant the VOUT is pre-programmed in 100mV steps,
and the external resistor divider is not needed.
AS1383 supports input voltages down to 2.7V. The device
provides an output current of 200mA. To support high
efficiency across the entire load range the AS1383 is equipped
with a synchronous rectifier and features a power save mode
for light loads.
To avoid harmful deep discharge of the battery during
shutdown the AS1383 is equipped with an output disconnect
function.
The AS1383 is available in a 6-pin WL-CSP package with 0.4mm
pitch.
Ordering Information and Content Guide appear at end of
datasheet.
Figure 1:
Added Value of Using AS1383
Key Benefits & Features
The benefits and features of AS1383 are listed below:
Benefits
Features
Ideal for single Li-Ion battery powered applications • Wide Input Voltage Range (2.7V to 5.5V)
Extended battery life
• High Efficiency up to 92%
Supports a variety of end applications
• Output Voltage Range: 2.7V to 5.0V (fixed and
adjustable variants)
• 3.5MHz Fixed-Frequency
• Output Current up to 200mA
• Automatic Powersave Operation for light Loads
• Output Disconnect during Shutdown
• Anti-Ringing Control minimizes EMI
Cost effective, small package
• 6-pin WL-CSP with 0.4mm pitch
ams Datasheet
[v1-01] 2015-May-22
Page 1
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1 page  
AS1383 − Electrical Characteristics
Electrical Characteristics
Figure 7:
Electrical Characteristics
All limits are guaranteed. The parameters with min and max
values are guaranteed with production tests or SQC (Statistical
Quality Control) methods.
Symbol
Parameter
Note
Min Typ Max Unit
VIN Input Voltage
VOUT
Output Voltage,
Output voltage can be
trimmed to any values
between Min and Max
VOUT_TOL Output Voltage Tolerance
VO_Ripple Output Ripple Voltage
IOUT Output Current
IQSHDN
IQPWS
Quiescent Current
(Shutdown)
Quiescent Current
(Powersave operation)
VIN
Regulation
IOUT = 150mA
Operating Current
VIN ≤ 3.0V
3.0V < VIN ≤ 3.7V
VIN > 3.7V
EN = GND
2.7 5.5 V
2.7 5.0 V
-3 +3 %
20 mVpp
50
100 mA
200
1.5 uA
25 uA
Line transient response
Load transient response
VIN = Step from 3.0V to 3.5V,
VOUT=5.0V
IOUT = 100mA
VIN = 3.6V, VOUT=5.0V
IOUT = stepping from 10mA to
100mA
80 mV
100 mV
ams Datasheet
[v1-01] 2015-May-22
Page 5
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5 Page 
AS1383 − Typical Operating Characteristics
Figure 11:
VOUT Behavior When VIN is Stepped Between 3.0V and 3.5V (ILOAD=100mA, VOUT = 5.0V)
Figure 12:
VOUT Behavior When VIN is Stepped Between 3.0V and 3.5V (ILOAD=100mA, VOUT = 4.5V)
ams Datasheet
[v1-01] 2015-May-22
Page 11
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11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet AS1383.PDF ] | |
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