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TPS658620ZQZT датащи(PDF) 9 Page - Texas Instruments

номер детали TPS658620ZQZT
подробное описание детали  Advanced Power Management Unit
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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TPS658620ZQZT датащи(HTML) 9 Page - Texas Instruments

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TPS658620
Advanced Power Management Unit
www.ti.com
SLVS993 – OCTOBER 2009
ELECTRICAL CHARACTERISTIC (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SM0, low range, 25mV
VO(SMx)TYP = 0.725 to 1.50
steps
SM1, low range, 25mV
VIN_SMx = 2.9V to 5.5V
VO(SMx)TYP = 0.725 to 1.50
V
Adjustable output voltage range, Selectable via I
2C
steps
SM2, high range, 50mV
VO(SMx)TYP =3.0 to 4.55
steps
VO(SMx)
VIN_SMx = 2.9V to 5.5V, PFM mode
–1%
1%
3%
Output Voltage Accuracy, relative to VO(SMx)TYP
VIN_SMx = 2.9V to 5.5V, PWM mode, 0mA < IOUT< 1A
–2%
2%
DC output voltage load regulation
PWM mode, VIN_SMn>2.7V, Load<1A
0.25
%/A
DC output voltage line regulation
VIN_SMx = VOUT + 0.5V (min. 2.5V), PWM mode VIN_SMn>2.7V, Load<1A
0.1
%/V
SM0, SM1: typical
values:Instantaneous, 0.11,
KRAMP(SMx)
Voltage change ramp constant
mV/
µs
Value set via I
2C, available options:
0.22, 0.44, 0.88, 1.76, 3.52,
7.04
Time to start switching, measured from end of I
2C command enabling
tStart
Start-up time
210
µs
converter
tRamp
VOUT Ramp UP time
Time to ramp from 5% to 95% of VOUT
250
µs
RDCH
Discharge switch resistance
SMx disabled
250
VIN_SM
IPFM(ENTER)
Load current to enter PFM mode
VIN_SMx = 2.9V to 5.5V, duty cycle > 85%
x/
A
34
CLC
External LC capacitor
4.7
22
µF
LLC
External LC inductor
1.5
4.7
µH
CSMINP
External Input capacitor
10
47
µF
LDO’S : LDO0, LDO1, LDO2, LDO3, LDO4, LDO5, LDO6, LDO7, LDO8, LDO9
Electrical characteristics over the output current range IO(LDOx)
2.3
5.5
VINMIN
Input voltage range
V
Electrical characteristics specified , max load current = 75mA
1.7
5.5
IO(LDOx)
Output current
300
mA
Available output voltages:
Output Voltage, Selectable via I
2C. LDO6, LDO0, LDO3, LDO5,
V(LDO6)TYP = 1.25, 1.5, 1.8,
V
LDO7,LDO8,LDO9
2.5, 2.7, 2.85, 3.1,3.3
Low range, 25mV steps
V(LDO1)TYP = 0.725 to 1.5
LDO1 Output Voltage, Selectable via I
2C
LDO4 Output Voltage, Selectable via
High range, 25mV steps
V(LDO4)TYP = 1.7 to 2.475
V
Low range, 25mV steps
V(LDO2)TYP= 0.725 to 1.5
LDO2 Output Voltage, Selectable via I
2C
Dropout, V(IN)= V(LDOx)TYP - 0.1V , V(IN)=2.3V, 250mA load. 1 LDO active at
415
mV
a time per input pin group
(1)
V(LDOx)
LDOx Output Voltage, Selectable via I
2C
Total accuracy, V(VIN_LDOx)= V(LDOx)TYP + 0.5V, 10mA → 250 mA
See
(2)
3.5%
Line Regulation, 100mA load, V(VIN_LDOx):
–0.5%
0.5%
V(LDOx) TYP + 0.5V→ 4.7V
Load regulation, load change from 10mA
→ 250 mA
See
(3)
%
V(VIN_LDOx)> V(LDOx) TYP + 0.5V
250mA load, 1V input to output ,CL = 4.7 µF
40
PSRR(LDOx) PSRR at 20 kHz
dB
100mA load, 0.5V input to output, CL = 1
µF
40
ISC(LDOx)
Short circuit current limit
Output grounded
(2)
LDOnILIM=HI
400
700
mA
RDCH(LDOx)
Discharge resistor
LDOx disabled
415
KRAMP(LDOx)
Voltage change ramp constant
LDO2, LDO4 only. Fixed value, hardwired at top level
7.04
mV/
µs
load <100 mA
1
µF
CCOMP
External output capacitor value
Stable operation
0.01
µF/mA, min cap value =
load>100 mA
1
µF
Power good threshold
LDO output voltage increasing
95%
PGOOD(LDO)
Hysteresis
Decreasing voltage from increasing trigger
5%
(1)
Dropout not measured for devices with V(IN)<2.3V because minimum VIN is 2.3V
(2)
MIN = –3.2 – (0.105
× I
LOAD / V(LDOX)TYP), ILOAD = load current in mA
(3)
MIN = –2.5 – (0.105
× I
LOAD, ILOAD = load current in mA
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Electrical Specifications
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