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参数资料
| 型号： | TPS54429PWP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.01 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封装： | GREEN, PLASTIC, HTSSOP-14 |
| 文件页数： | 16/22页 |
| 文件大小： | 651K |
| 代理商： | TPS54429PWP |
SLVSAS1
– FEBRUARY 2011
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
VIN
Supply input voltage range
7
18
V
VBST
–0.3
24
VBST(10 ns transient)
–0.3
27
SS, PG
–0.1
5.7
EN
–0.1
18
VI
Input voltage range
V
VO, VFB
–0.1
5.5
SW1, SW2
–1.8
18
SW1, SW2 (10 ns transient)
–3
21
PGND1, PGND2
–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
–20
85
°C
TJ
Operating junction temperature
–20
150
°C
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range, VIN = 12V (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
850
1300
μA
VFB = 0.8 V
IVINSDN
Shutdown supply current
VIN current, TA = 25°C, EN = 0 V
1.8
10
μA
LOGIC THRESHOLD
VENH
EN high-level input voltage
EN
2
V
VENL
EN low-level input voltage
EN
0.48
V
VFB VOLTAGE AND DISCHARGE RESISTANCE
TA = 25°C, VO = 1.05 V, continuous mode
757
765
773
TA = 0°C to 85°C, VO = 1.05 V, continuous
753
777
VFBTH
VFB threshold voltage
mode(1)
mV
TA = –20°C to 85°C, VO = 1.05 V, continuous
751
779
mode(1)
IVFB
VFB input current
VFB = 0.8 V, TA = 25°C
0
±0.1
μA
RDischg
VO discharge resistance
EN = 0 V, VO = 0.5 V, TA = 25°C
50
100
VREG5 OUTPUT
TA = 25°C, 7.0 V < VIN < 18 V,
VVREG5
VREG5 output voltage
5.3
5.5
5.7
V
0
< IVREG5 < 5 mA
VLN5
Line regulation
7.0 V
< VIN < 18 V, IVREG5 = 5 mA
20
mV
VLD5
Load regulation
0 mA
< IVREG5 < 5 mA
100
mV
IVREG5
Output current
VIN = 7 V, VREG5 = 4 V, TA = 25°C
70
mA
MOSFET
Rdsonh
High side switch resistance
25
°C, VBST - SW1,2 = 5.5 V
63
m
Rdsonl
Low side switch resistance
25
°C
55
m
(1)
Not production tested.
2011, Texas Instruments Incorporated
3
Product Folder Link(s) :TPS54429
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