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AS3709 Datasheet(PDF) 15 Page - ams AG

Part # AS3709
Description  關PMIC with 5 DCDC and 2 LDOs
PDF  74 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3709 Datasheet(HTML) 15 Page - ams AG

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ams Datasheet, Confidential: 2013-Aug [1-02]
AS3709 – 15
Detaile d Desc ri p t ion - P o w e r M a nagemen t Fu nc tions
Parameters
Figure 16:
Step Down DCDC Converter Electrical Characteristics
Figure 17:
Step Down DCDC External Components
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIN
Input Voltage
Pin VSUP
2.7
5.5
V
VOUT
Regulated Output Voltage
0.6125
3.35
V
VOUT_TOL
Output Voltage Tolerance
min. 40mV
-3
+3
%
ILIMIT
Current Limit
1.2
A
RPMOS
P-switch ON resistance
0.25
0.5
Ω
RNMOS
N-switch ON resistance
0.25
0.5
Ω
fSW
Switching Frequency
sdX_frequ = 1
sdX_fsel = 1
fclk_int = 4MHz
4MHz
sdX_frequ = 1
sdX_fsel = 0
fclk_int = 4MHz
3MHz
sdX_frequ = 0
sdX_fsel = 0
fclk_int = 4MHz
2MHz
ILOAD
Load Current
VOUT ≤ 1.8V
01
A
VOUT > 1.8V
00.7
ISUP_DCDC
Current Consumption
Operating Current
without Load
60
μA
Shutdown Current
0.1
tMIN_ON
Minimum ON Time
40
ns
ηEFF
Efficiency
See figures below
%
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
CFB_SDx
Output Capacitor
Ceramic X5R or X7R
8
10
μF
CVSUP_SDx
Input Capacitor
Ceramic X5R or X7R
2.2
μF



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