參數(shù)資料
型號： TPS70758PWPRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20
封裝： GREEN, PLASTIC, HTSSOP-20
文件頁數(shù)： 34/40頁
文件大?。?/td> 918K
代理商： TPS70758PWPRG4
www.ti.com
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
(3)
If VO < 1.8V then VImax = 6V, VImin = 2.7V:
Line Reg. (mV)
+ (% V)
V
O
V
Imax
*2.7V
100
1000
If VO > 2.5V then VImax = 6V, VImin = VO + 1V:
Line Reg. (mV)
+ (% V)
V
O
V
Imax* VO)1V
100
1000
TPS70745, TPS70748
TPS70751, TPS70758
TPS70702
SLVS291D – MAY 2000 – REVISED DECEMBER 2007
Over operating temperature range (unless otherwise noted).
MIN
MAX
UNIT
Input voltage, VI
(1)(regulator 1 and 2)
2.7
6
V
Output current, IO (regulator 1)
0
250
mA
Output current, IO (regulator 2)
0
125
mA
Output voltage range (for adjustable option)
1.22
5.5
V
Operating junction temperature, TJ
–40
+125
°C
(1)
To calculate the minimum input voltage for maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load).
Over recommended operating junction temperature range (TJ = –40°C to +125°C), VIN1 or VIN2 = VOUT(nom) + 1V, IO = 1mA,
EN = 0V, and CO = 33F (unless otherwise noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
2.7V < VI < 6V,
FB connected to VO
1.22
Reference
TJ = +25°C
voltage
2.7V < VI < 6V,
FB connected to VO
1.196
1.244
2.7V < VI < 6V,
TJ = +25°C
1.2
1.2V Output
2.7V < VI < 6V,
1.176
1.224
2.7V < VI < 6V,
TJ = +25°C
1.5
1.5V Output
Output
2.7V < VI < 6V,
1.47
1.53
VO
V
voltage (1),(2)
2.8V < VI < 6V,
TJ = +25°C
1.8
1.8V Output
2.8V < VI < 6V,
1.764
1.836
3.5V < VI < 6V,
TJ = +25°C
2.5
2.5V Output
3.5V < VI < 6V,
2.45
2.55
4.3V < VI < 6V,
TJ = +25°C
3.3
3.3V Output
4.3V < VI < 6V,
3.234
3.366
Quiescent current (GND current) for
(2)
TJ = +25°C
190
A
regulator 1 and regulator 2, EN = 0V(1)
(2)
230
Output voltage line regulation (
VO/VO)
VO + 1V < VI ≤ 6V,
TJ = +25°C
(1)
0.01%
V
for regulator 1 and regulator 2 (3)
VO + 1V < VI ≤ 6V
(1)
0.1%
Load regulation for VOUT 1 and VOUT2
TJ = +25°C
(2)
1
mV
Vn
Output noise
Regulator 1
65
BW = 300Hz to 50kHz,
CO = 33F, TJ = +25°C
V
RMS
voltage
Regulator 2
65
Regulator 1
1.6
1.9
Output current limit
VOUT = 0V
A
Regulator 2
0.750
1
Thermal shutdown junction temperature
+150
°C
EN = VI,
TJ = +25°C
2
Regulator 1
A
EN = VI
6
II
Standby
(standby) current
EN = VI,
TJ = +25°C
2
Regulator 2
A
EN = VI
6
PSRR
Power-supply ripple
f = 1kHz, CO = 33F,
TJ = +25°C
(1)
dB
60
rejection
(1)
Minimum input operating voltage is 2.7V or VO(typ) + 1V, whichever is greater. Maximum input voltage = 6V, minimum output
current = 1mA.
(2)
IO = 1mA to 250mA for Regulator 1 and 1mA to 125mA for Regulator 2.
4
Copyright 2000–2007, Texas Instruments Incorporated
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