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STW4811MBRAT/HF 数据表(PDF) 59 Page - STMicroelectronics

部件名 STW4811MBRAT/HF
功能描述  Power management for multimedia processors
PDF  85 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STW4811MBRAT/HF 数据表(HTML) 59 Page - STMicroelectronics

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STw4811M/STw4811N
Electrical and timing characteristics
CD00131784
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5.3.4
VIO_VMEM DC/DC step-down converter
VCORE regulator in sleep mode (SLEEP= ‘1’)
VBAT
Input power supply Battery voltage
2.7
3.6
4.8
V
VRIPPLE
VCORE output
voltage ripple
6mVpp
LIR
Line regulation
VBAT: [2.7; 4.8]V
10
mV
LDR
Load regulation
IOUT: [0.1; 5] mA
10
mV
IOUT
VCORE output
current
5mA
PEFF
Power efficiency
VBAT= 3.6 V
IOUT: [0.1; 5] mA
85
%
IQ
Quiescent current
IOUT = 0 mA
20
30
µA
LIRT
Transient line
regulation
Δ VBAT= 300 mV
tR = tF = 10 µs
7mV
1.
Guaranteed by design
Table 39.
VCORE DC/DC step-down converter (continued)
Symbol
Description
Test conditions
Min.
Typ.
Max.
Units
Table 40.
VIO_VMEM DC/DC step-down converter
Symbol
Description
Test conditions
Min.
Typ.
Max.
Units
VIO_VMEM regulator in high power mode (SLEEP = ‘0’)
VBAT
Input power supply Battery voltage
2.7
3.6
4.8
V
VOUT
Output voltage (1)
-3%
1.8
+3%
V
VRIPPLE
Output ripple
6
mVpp
LIR
Line regulation
VBAT: [2.7; 4.8]V
10
mV
LDR
(2)
Load regulation
IOUT: [0.1; 600] mA
10
mV
IOUT
Output current
600
mA
PEFF
Power efficiency
VBAT = 3.6 V,
VIO = 1.8 V
IOUT= 200 mA
90
%
ISHORT
Short circuit
current limitation
0.9
1.2
1.4
A
IQ
Quiescent current
IOUT = 0 mA
130
250
µA
PSRR(2)
Power supply
rejection
Vpp = 0.3 V
[0; 20] kHz
40
dB
LIRT
Transient line
regulation
ΔVBAT = 300 mV
tR = tF = 10 µs
7
mV
LDRT
Transient load
regulation
IOUT= [1; 600] mA
tR = tF = 100 ns
70
mV



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