参数资料
型号: TPS61020DRCT
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 1.8 A SWITCHING REGULATOR, 720 kHz SWITCHING FREQ-MAX, PDSO10
封装: 3 X 3 MM, PLASTIC, SON-10
文件页数: 23/29页
文件大小: 743K
代理商: TPS61020DRCT
www.ti.com
ELECTRICAL CHARACTERISTICS
SLVS451D – SEPTEMBER 2003 – REVISED FEBRUARY 2006
over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature
range of 25
°C) (unless otherwise noted)
DC/DC STAGE
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Minimum input voltage for start-up
RL = 120
0.9
1.2
V
Input voltage range, after start-up (TPS61020,
0.9
6.5
V
VI
TPS61024, TPS61025, TPS61027, TPS61028)
Input voltage range, after start-up (TPS61026,
0.9
5.5
V
TPS61029)
TPS61020, TPS61028 and TPS61029 output
VO
1.8
5.5
V
voltage range
TPS61020, TPS61028 and TPS61029 feedback
VFB
490
500
510
mV
voltage
f
Oscillator frequency
480
600
720
kHz
Switch current limit (TPS61020, TPS61024,
ISW
VOUT= 3.3 V
1200
1500
1800
mA
TPS61025, TPS61027)
ISW
Switch current limit (TPS61028)
VOUT= 3.3 V
800
mA
ISW
Switch current limit (TPS61026, TPS61029)
VOUT= 3.3 V
1500
1800
2100
mA
Start-up current limit
0.4 x ISW
mA
SWN switch on resistance
VOUT= 3.3 V
260
m
SWP switch on resistance
VOUT= 3.3 V
290
m
Total accuracy (including line and load regulation)
±3%
Line regulation
0.6%
Load regulation
0.6%
VBAT
1
3
A
IO = 0 mA, VEN = VBAT = 1.2 V,
Quiescent current
VOUT = 3.3 V, TA = 25°C
VOUT
25
45
A
VEN = 0 V, VBAT = 1.2 V,
Shutdown current
0.1
1
A
TA = 25°C
CONTROL STAGE
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VUVLO Under voltage lockout threshold
VLBI voltage decreasing
0.8
V
VIL
LBI voltage threshold
VLBI voltage decreasing
490
500
510
mV
LBI input hysteresis
10
mV
LBI input current
EN = VBAT or GND
0.01
0.1
A
VOL
LBO output low voltage
VO = 3.3 V, IOI = 100 A
0.04
0.4
V
Vlkg
LBO output leakage current
VLBO = 7 V
0.01
0.1
A
VIL
EN, PS input low voltage
0.2
× VBAT
V
VIH
EN, PS input high voltage
0.8
× VBAT
V
EN, PS input current
Clamped on GND or VBAT
0.01
0.1
A
Overtemperature protection
140
°C
Overtemperature hysteresis
20
°C
Copyright 2003–2006, Texas Instruments Incorporated
3
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