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STODD01 数据表(PDF) 7 Page - STMicroelectronics

部件名 STODD01
功能描述  Synchronous rectification
PDF  31 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STODD01 数据表(HTML) 7 Page - STMicroelectronics

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STODD01
Electrical characteristics
Doc ID 17789 Rev 2
7/31
5
Electrical characteristics
VIN_P = VIN_A = VEN = 5 V, VOUT1 = 9 V, VOUT2 = 3.3 V, VOUT3 = 1.2 V, C1,2,3 = 10 µF,
C4,5,6 = 22 µF, L1 = 4.7 µH, L2 = L3 = 3.3 µH, TJ = - 25 to 125 °C (unless otherwise
specified; typical values are referred to TJ = 25 °C).
Table 7.
Electrical characteristics
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VIN
Input voltage range
4
6
V
ISUPPLY
Supply current
VEN > 1.2 V, No Switching
1.6
2.2
mA
VEN < 0.4 V, No Switching
1.2
2.0
mA
Step-up section
VOUT
Output voltage range
6.5
14
V
VFB1
Prog. feedback voltage
range
IOUT1= 50 mA (prog. by S-Wire
see Figure 9 and Table 9)
0.776
0.8
0.824
V
Feedback voltage accuracy
-3
3
%
IFB1
Feedback current
VFB1= 0 V, VEN= 2 V
600
nA
IOUT1_OFF
(leak)
Output leakage current
VEN= 0 V, TJ = -25 to 80 °C
20
µA
VOUT1 OVP
Overvoltage protection (1)
VFB1= 0 V
14.8
15.3
15.8
V
RDSon_N
Internal N-channel
RDSon
ISW1=400 mA
300
m
Ω
RDSon_P
Internal P-channel
RDSon
ISW1=400 mA
300
ISW1 (leak)
Internal leakage current
VSW1= 4 V, VFB1= 2 V, VEN= 0 V
2
µA
ISW1 (LIM)
SW Current limitation
VOUT1= 9.2 V
2.6
A
PWM fs
Oscillator frequency
to be measured on tSW1 pin
0.75
1.2
1.5
MHz
DMAX
Max duty cycle
on SW1 pin, VFB1 = 0.7 V
70
90
%
ν
Efficiency
IOUT1=50 mA, VOUT1=7 V
80
%
IOUT1=700 mA, VOUT1=7 V
90
%
IOUT1=100 mA, VOUT1=9 V
75
%
IOUT1=700 mA, VOUT1=9 V
90
%
VEN_H
Enable threshold high
VIN =4 to 6 V, IOUT1 = 50 mA
1.2
V
VEN_L
Enable threshold low
VIN = 4 to 6 V, IOUT1 = 50 mA
0.4
IEN
Enable pin current
VEN = VIN = 5 V
2
µA
ΔV
OUT1/ΔVIN
Line transient response (2)
VIN from 4 to 6 V, IOUT1 = 500
mA, tR = tF => 30 µs, TJ=25 °C
-5
5
%
VOUT
ΔV
OUT1/ΔIOUT
Load transient response (2)
VIN = 5 V, IOUT1 from 100 mA to
500 mA, tR = tF => 5µs, TJ=25 °C
-5
5
%
VOUT
ΔV
OUT1/ΔVIN
Startup transient (2)
VIN from 0 to 5 V, IOUT1= 500 mA
-10
10
%
VOUT



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