参数资料
型号: TPS61087DRCR
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 4.8 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10
封装: GREEN, PLASTIC, SON-10
文件页数: 23/30页
文件大小: 964K
代理商: TPS61087DRCR
www.ti.com
SLVS821B – MAY 2008 – REVISED MARCH 2010
ELECTRICAL CHARACTERISTICS
VIN = 5 V, EN = VIN, VS = 15 V, TA = –40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY
VIN
Input voltage range
2.5
6
V
IQ
Operating quiescent current into IN
Device not switching, VFB = 1.3 V
75
100
mA
ISDVIN
Shutdown current into IN
EN = GND
1
mA
VUVLO
Under-voltage lockout threshold
VIN falling
2.4
V
VIN rising
2.5
V
TSD
Thermal shutdown
Temperature rising
150
°C
TSDHYS
Thermal shutdown hysteresis
14
°C
LOGIC SIGNALS EN, FREQ
VIH
High level input voltage
VIN = 2.5 V to 6.0 V
2
V
VIL
Low level input voltage
VIN = 2.5 V to 6.0 V
0.5
V
IINLEAK
Input leakage current
EN = FREQ = GND
0.1
mA
BOOST CONVERTER
VS
Boost output voltage
VIN +
18.5
V
0.5
VFB
Feedback regulation voltage
1.230
1.238
1.246
V
gm
Transconductance error amplifier
107
mA/V
IFB
Feedback input bias current
VFB = 1.238 V
0.1
mA
rDS(on)
N-channel MOSFET on-resistance
VIN = VGS = 5 V, ISW = current limit
0.13
0.18
VIN = VGS = 3V, ISW = current limit
0.16
0.23
ISWLEAK
SW leakage current
EN = GND, VSW = VIN = 6.0V
2
mA
ILIM
N-Channel MOSFET current limit
3.2
4.0
4.8
A
ISS
Soft-start current
VSS = 1.238 V
7
10
13
mA
fS
Oscillator frequency
FREQ = VIN
0.9
1.2
1.5
MHz
FREQ = GND
480
650
820
kHz
Line regulation
VIN = 2.5 V to 6.0 V, IOUT = 10 mA
0.0002
%/V
Load regulation
VIN = 5.0 V, IOUT = 1 mA to 1 A
0.11
%/A
Copyright 2008–2010, Texas Instruments Incorporated
3
Product Folder Link(s): TPS61087
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