參數(shù)資料
型號: TPS65185RSLT
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: POWER SUPPLY SUPPORT CKT, PQCC48
封裝: 6 X 6 MM, 0.4 MM PITCH, 0.9 MM HEIGHT, PLASTIC, VQFN-48
文件頁數(shù): 46/49頁
文件大?。?/td> 2488K
代理商: TPS65185RSLT
PRODUCTPREVIEW
SLVSAQ8A
– FEBRUARY 2011 – REVISED MAY 2011
RECOMMENDED EXTERNAL COMPONENTS
PART NUMBER
VALUE
SIZE
MANUFACTURER
INDUCTORS
LQH44PN4R7MP0
4.7
H
4 mm x 4 mm x 1.65 mm
Murata
NR4018T4R7M
4.7
H
4 mm x 4 mm x 1.8 mm
Taiyo Yuden
VLS252015ET-2R2M
2.2
H
2 mm x 2.5 mm x 1.5 mm
TDK
NR4012T2R2M
2.2
H
4 mm x 4 mm x 1.2 mm
Taiyo Yuden
CAPACITORS
GRM21BC81E475KA12L
4.7
F, 25 V, X6S
805
Murata
GRM32ER71H475KA88L
4.7
F, 50 V, X7R
1210
Murata
All other caps
X5R or better
DIODES
BAS3010
SOD-323
Infineon
MBR130T1
SOD-123
ON-Semi
BAV99
SOT-23
Fairchild
THERMISTOR
NCP18XH103F03RB
10 K
Ω
603
Murata
ELECTRICAL CHARACTERISTICS
VIN = 3.7 V, TA = –10°C to 85C, Typical values are at TA = 25C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT VOLTAGE
VIN
Input voltage range
3
3.7
6
V
VUVLO
Undervoltage lockout threshold
VIN falling
2.9
V
VHYS
Undervoltage lockout hysteresis
VIN rising
400
mV
INPUT CURRENT
IQ
Operating quiescent current into VIN
Device switching, no load
5.5
mA
ISTD
Operating quiescent current into VIN
Device in standby mode
130
A
ISLEEP
Shutdown current
Device in sleep mode
3.5
10
A
INTERNAL SUPPLIES
VINT_LDO
Internal supply
2.7
V
CINT_LDO
Nominal output capacitor
Capacitor tolerance
±10%
1
4.7
F
VREF
Internal supply
2.25
V
CREF
Nominal output capacitor
Capacitor tolerance
±10%
3.3
4.7
F
DCDC1 (POSITIVE BOOST REGULATOR)
VIN
Input voltage range
3
3.7
6
V
Power good threshold
Fraction of nominal output voltage
90
%
PG
Power good time-out
Not tested in production
50
ms
Output voltage range
16
V
VOUT
DC set tolerance
-4.5
4.5
%
IOUT
Output current
250
mA
RDS(ON)
MOSFET on resistance
VIN = 3.7 V
350
m
Switch current limit
1.5(1)
A
ILIMIT
Switch current accuracy
-30
30
%
fSW
Switching frequency
1
MHz
LDCDC1
Inductor
2.2
H
CDCDC1
Nominal output capacitor
Capacitor tolerance
±10%
1
2x4.7
F
ESR
Output capacitor ESR
20
m
(1)
Contact factory for 1-A, 2-A, or 2.5-A option.
6
Copyright
2011, Texas Instruments Incorporated
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