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STPMIC25 数据表(PDF) 17 Page - STMicroelectronics

部件名 STPMIC25
功能描述  Highly integrated power management IC for microprocessor units
PDF  145 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STPMIC25 数据表(HTML) 17 Page - STMicroelectronics

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3.4.8
REFDDR (DDR_VREF)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
REFDDR (sink-source)
VREFOUT
Output voltage
VOUT6/2
V
VVREF-ACC Output voltage accuracy
1.1 V < VOUT6 < 1.5 V, 100 µArms < ILDOOUT < 5 mArms
-1
+1
%
IREFOUT
Continuous output current
5
mARMS
IREFLIM
Output current limitation
±10
±25
±50
mA
IREFQ
Quiescent current
IREFOUT = 0 mA
25
35
µA
tSSREF
Soft-start duration
0 < IREFOUT < 1 mA
100
µs
tSDREF
Shutdown duration
Pull-down enabled, VREFOUT = 0.6 V to VREFOUT= 0.2 V,
ILDOOUT = no load
1.5
ms
3.4.9
BUCK1, BUCK6
Table 14. Electrical and timing parameter specifications (BUCK1, BUCK6)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
BUCK1, BUCK6
VBUCKIN
Main input voltage
range
2.8
5.5
V
VOUT
Output voltage
Programmable value
0.5 to
1.5
Voltage programming step
10
mV
VOUT-ACC
Output voltage error
amplifier accuracy
BUCK1
HP mode
0.5 V < VOUT < 1.5 V
-1.5
+1.5
%
BUCK6
HP mode
0.5 V < VOUT6 < 1.5 V
-1.5
+1.5
BUCK1, BUCK6
LP mode
0 < IOUT < 50 mA
-4
+4
BUCK6
LP mode
VOUT6 = 1.1 V
0 < IOUT < 50 mA
-3
+3
VOUT-REG
Output load regulation
(4)
BUCK1, BUCK6
HP mode, CCM mode
1 mA < IOUT < 1.5 A
-1
+1
VOUT-RIPP
Output voltage ripple
(2)
HP mode
3.0 V < VBUCKIN < 5.5 V, 5 mA < IOUT < 1500 mA
0.7 V < VOUTBK1 < 1.0 V
1.0 V < VOUTBK6 < 1.35 V
10
mVPP
STPMIC25
Electrical and timing characteristics
DS14278 - Rev 3
page 17/145



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