參數(shù)資料
型號(hào)： LV5254LG
廠商： SANYO SEMICONDUCTOR CO LTD
元件分類： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PBGA24
封裝： 3 X 3 MM, FLGA-24
文件頁(yè)數(shù)： 7/14頁(yè)
文件大小： 136K
代理商： LV5254LG
LV5254LG
No.A0584-2/14
Electrical Characteristics
(a) Electrical Characteristics
Ta = 25°C, SVDD and PVDD = 4.6V, SGND and PGND = 0V, CLK = 2MHz, unless otherwise specified.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Output ripple
Vrp
C2, C5 = 1
μF, IO = 60mA
20
mVp-p
Standby mode VDD current
Iddstby
1
μA
Operating VDD current 1
Iddope1
IO = 0mA
2.2
mA
Operating VDD current 2
Iddope2
IO = 60mA
3.2
mA
Power efficiency
Peff
VDD = 4.6V, VOUT = -2.8V, IOUT = 60mA
57.5
%
Reference voltage
VREF
1.262
1.300
1.339
V
Overcurrent protection threshold
current
IOCP
115
mA
Overcurrent protection latch off wait
time
tOCP
Fclk = 2MHz
6
ms
Regulator output on time
tregon
Fclk = 2MHz
3.5
ms
Internal clock frequency*
fclk
2
MHz
Thermal shutdown circuit operating
temperature
TSD
Design guarantee
170
°C
VOUT discharge resistance
RDIS
650
Ω
VS pin input resistance
RVS
180
280
480
k
Ω
STBY pin pull-down resistance
RSHD
100
170
300
k
Ω
VthH
1.6
VDD
V
STBY pin control voltage
VthL
0
0.3
V
VthH
0.7VDD
VDD
V
S1 and S2 pin control voltage
VthL
0
0.3
V
* : The charge pump operating frequency, Fcp, is the internal clock frequency divided by two, i.e. Fclk/2.
(b) Output Characteristics
Ta = 25°C, SVDD and PVDD = 4.6V, SGND and PGND = 0V, CLK = 2MHz, unless otherwise specified.
Fixed Output Voltage (Vout = -2.8V) Mode
Outputs a fixed voltage of -2.8V determined by an internal resistor.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Input supply voltage
VDD
SVDD = PVDD
4.37
4.83
V
Output voltage precision
VOUT
VDD = +4.37 to +4.83V
IOUT = 60mA
-2.884
-2.8
-2.716
V
Maximum output current
IOUT
VDD = +4.37 to +4.83V
VOUT = -2.8V
70
mA
VS Mode
Outputs a voltage that is -1 times the voltage VS input to the VS pin.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
VS pin input voltage
VS
1
4.5
V
VS pin output voltage range
VOUT
*1
-4.5
-1
V
Output voltage precision
VS = 1 to 2V, IOUT = 0 to 60mA
-1.05VS
-VS
-0.95VS
V
Output voltage precision
VS = 2 to 4.5V, IOUT = 0 to 60mA
-1.03VS
-VS
-0.97VS
V
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