参数资料
型号: TPS54162QPWPRQ1
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 3 A SWITCHING REGULATOR, 2200 kHz SWITCHING FREQ-MAX, PDSO20
封装: GREEN, PLASTIC, HTSSOP-20
文件页数: 37/41页
文件大小: 2414K
代理商: TPS54162QPWPRQ1
www.ti.com
SLVSA32C – OCTOBER 2009 – REVISED MAY 2010
DC ELECTRICAL CHARACTERISTICS
VIN = 7 V to 48 V, EN = VIN, TJ = –40°C to 150°C (unless otherwise noted)
TEST
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ENABLE (EN)
PT
VIL
Low input threshold voltage
0.7
V
PT
VIH
High input threshold voltage
1.7
V
EN = 60 V
100
135
A
PT
Ilkg
Leakage current into EN terminal
EN = 12 V
8
15
A
RESET DELAY (Cdly)
PT
IO
External capacitor charge current
EN = high
1.4
2
2.6
A
PT
VThreshold
Switching threshold voltage
Output voltage in regulation
2
V
LOW-POWER MODE (LPM)
PT
VIL
Low input threshold voltage
VIN = 12 V
0.7
V
PT
VIH
High input threshold voltage
VIN = 12 V
1.7
V
PT
Ilkg
Leakage current into LPM terminal
LPM = 5 V
65
95
A
RESET OUTPUT (RST)
PT
trdly
POR delay timer
Based on Cdly capacitor
3.6
7 ms/nF
PT
VReg_RST
Reset threshold voltage for VReg
Check RST output
0.768
0.832
V
PT
tnRSTdly
Filter time
Delay before RST is asserted low
10
20
35
s
SOFT START (SS)
PT
ISS
Soft-start source current
40
50
60
A
SYNCHRONIZATION (SYNC)
PT
VIL
Low input threshold voltage
0.7
V
PT
VIH
High input threshold voltage
1.7
V
PT
Ilkg
Leakage current
SYNC = 5 V
65
95
A
VIN = 12 V, VReg = 5 V,
CT
SYNC (fext)
External input clock frequency
180
2200
kHz
180 kHz < fsw < fext < 2 × fsw < 2.2 MHz
Info
SYNCtrans
External clock to internal clock
No external clock, VIN = 12 V, VReg = 5 V
32
s
External clock = 1 MHz, VIN = 12 V,
Info
SYNCtrans
Internal clock to external clock
2.5
s
VReg = 5 V
CT
SYNCCLK
Minimum duty cycle
30
%
CT
SYNCCLK
Maximum duty cycle
70
%
Rslew
CT
IRslew
Rslew = 50 k
20
A
CT
IRslew
Rslew = 10 k
100
A
OVERVOLTAGE SUPERVISORS (OV_TH)
Threshold voltage for VReg during
Internal switch is turned off
0.768
0.832
V
overvoltage
PT
VReg_OV
VReg = 5 V
Internal pulldown on VReg, OV_TH = 1 V
70(1)
mA
THERMAL SHUTDOWN
Thermal shutdown junction
CT
TSD
175
°C
temperature
CT
THYS
Hysteresis
30
°C
PT: Production tested
CT: Characterization tested only, not production tested
(1)
This is the current flowing into the VReg pin when voltage at OV_TH pin is 1 V.
Copyright 2009–2010, Texas Instruments Incorporated
5
Product Folder Link(s): TPS54162-Q1
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