參數(shù)資料
型號(hào): TPS54328DDAR
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 穩(wěn)壓器
英文描述: 5.7 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO8
封裝: GREEN, PLASTIC, MS-012BA, SOP-8
文件頁(yè)數(shù): 13/19頁(yè)
文件大小: 497K
代理商: TPS54328DDAR
www.ti.com
SLVSAN2 – NOVEMBER 2010
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
VIN
Supply input voltage range
4.5
18
V
VBST
–0.1
24
VBST (10 ns transient)
–0.1
27
VBST(vs SW)
–0.1
5.7
SS
–0.1
5.7
VI
Input voltage range
EN
–0.1
18
V
VFB
–0.1
5.5
SW
–1.8
18
SW (10 ns transient)
–3
21
GND
–0.1
0.1
VO
Output voltage range
VREG5
–0.1
5.7
V
IO
Output Current range
IVREG5
0
10
mA
TA
Operating free-air temperature
–40
85
°C
TJ
Operating junction temperature
–40
150
°C
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
VIN current, TA = 25°C, EN = 5 V,
IVIN
Operating - non-switching supply current
800
1200
mA
VFB = 0.8 V
IVINSDN
Shutdown supply current
VIN current, TA = 25°C, EN = 0 V
1.8
10
mA
LOGIC THRESHOLD
VENH
EN high-level input voltage
EN
2
V
VENL
EN low-level input voltage
EN
0.45
V
VFB VOLTAGE AND DISCHARGE RESISTANCE
TA = 25°C, VO = 1.05 V, IO = 10 mA,
772
mV
Eco-mode operation
VFBTH
VFB threshold voltage
TA = 25°C, VO = 1.05 V, continuous mode
749
765
781
mV
operation
IVFB
VFB input current
VFB = 0.8 V, TA = 25°C
0
±0.1
mA
VREG5 OUTPUT
TA = 25°C, 6.0 V < VIN < 18 V,
VVREG5
VREG5 output voltage
5.2
5.5
5.7
V
0 < IVREG5 < 5 mA
VLN5
Line regulation
6 V < VIN < 18 V, IVREG5 = 5 mA
25
mV
VLD5
Load regulation
0 mA < IVREG5 < 5 mA
100
mV
IVREG5
Output current
VIN = 6 V, VREG5 = 4.0 V, TA = 25°C
60
mA
MOSFET
RDS(on)h
High side switch resistance
25°C, VBST - SW = 5.5 V
100
m
RDS(on)l
Low side switch resistance
25°C
70
m
CURRENT LIMIT
Iocl
Current limit
L out = 1.5 mH(1), TA = -20C to 85C
3.5
4.2
5.7
A
(1)
Not production tested.
Copyright 2010, Texas Instruments Incorporated
3
Product Folder Link(s) :TPS54328
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