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ACT8870QJ-T Folha de dados(PDF) 14 Page - Active-Semi, Inc

Nome de Peças ACT8870QJ-T
Descrição Electrónicos  Advanced PMU for Microcontrollers and Solid State Drive Applications
Download  43 Pages
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Fabricante Electrônico  ACTIVE-SEMI [Active-Semi, Inc]
Página de início  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8870QJ-T Folha de dados(HTML) 14 Page - Active-Semi, Inc

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ACT8870QJ-T
Rev 3.0, 02-Oct-2017
Innovative PowerTM
www.active-semi.com
ActiveSwitcherTM is a trademark of Active-Semi.
Copyright © 2016-2017 Active-Semi, Inc.
I2CTM is a trademark of NXP
14
INTERNAL STEP-DOWN DC/DC ELECTRICAL CHARACTERISTICS REGULATOR: (BUCK2-4)
(VIN_Bx = 5V, TA = 25°C, unless otherwise specified.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Input Operating Voltage Range
2.8
5.5
V
Output Voltage Range
Configurable in 12.5mV steps
0.8
4
V
Maximum Output Current
2
A
Standby Supply Current, Low Power
Mode Enabled
VOUT_Bx = 103%, Regulator Enabled, No load
35
µA
Shutdown Current
VIN_Bx = 5.5V, Regulator Disabled
0.1
1
µA
B2 Voltage Accuracy – Default Voltage –
PWM Mode
CMI101 VOUT_B2 =1.5V, IOUT = 1A
-1%
VNOM
1%
V
B3 Voltage Accuracy – Default Voltage –
PWM Mode
CMI101 VOUT_B3 =1.25V, IOUT = 1A
-1%
VNOM
1%
V
B4 Voltage Accuracy – Default Voltage –
PWM Mode
CMI101 VOUT_B4 =3.3V, IOUT = 1A
-1%
VNOM
1%
V
B2 Voltage Accuracy – Default Voltage –
PFM Mode
CMI101 VOUT_B2 =1.5V, IOUT = 1A
-1%
VNOM
1%
V
B3 Voltage Accuracy – Default Voltage –
PFM Mode
CMI101 VOUT_B3 =1.25V, IOUT = 1A
-1%
VNOM
1%
V
B4 Voltage Accuracy – Default Voltage –
PFM Mode
CMI101 VOUT_B4 =3.3V, IOUT = 1A
-1%
VNOM
1%
V
Line Regulation
VOUT_Bx =1.8V VIN_Bx = 2.8V to 5.5V PWM Regulation
0.02
%/V
Load Regulation
VOUT_Bx = 1.8V PWM Regulation
0.04
%/A
Power Good Threshold
VOUT_B2 Rising
92
93
94
%VNOM
VOUT_B3 Rising
94
95
96
VOUT_B4 Rising
94
95
96
Power Good Hysteresis
VOUT_Bx Falling
3
%VNOM
Overvoltage Fault Threshold
VOUT_Bx Rising
107.5
110
112.5
%VNOM
Overvoltage Fault Hysteresis
VOUT_Bx Falling
3
%VNOM
Switching Frequency
VOUT_Bx ≥ 20% of VNOM
2.15
2.25
2.36
MHz
Programmable Soft-Start Time, TSET
Configurable
10% to 90% VNOM
300
1000
µs
Soft-Start Time Tolerance
Tolerance from TSET
-25
+25
%
High Side FET Current Limit (Cycle-by-
Cycle) ILIMSET
Bx_ILIMSET=11
Bx_ILIMSET=10
Bx_ILIMSET=01
Bx_ILIMSET=00
2.0
2.5
3.0
3.5
A
High Side FET Current Limit (Cycle-by-
Cycle) Tolerance
At default ILIMSET
-10
ILIMSET
+10
%
At other setpoints
-15
ILIMSET
+15
%
High Side FET Peak Current Limit, IRQ
Below ILIMSET = 00, 01, 10
-27.5
-22.5
-17.5
%


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