參數(shù)資料
型號(hào)： TPS5300DAPRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 3.3 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO32
封裝： GREEN, PLASTIC, HTSSOP-32
文件頁(yè)數(shù)： 20/23頁(yè)
文件大?。?/td> 476K
代理商： TPS5300DAPRG4
TPS5300
SLVS334A DECEMBER 2000 REVISED SEPTEMBER 2001
6
www.ti.com
electrical characteristics over recommended operating free-air temperature range, 0 < TJ < 125°C,
VIN = 3 V 28 V (unless otherwise noted) (continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Slowstart
I(chg)
Charge current (I(chg) = (I(REFB)/5)
V(SS) = 0.5 V,
I(VREFB) = 65 A VREFB = 1.35 V,
I(chg) = (I(VREFB)/5)
10.4
13
15.6
A
I(dischg)
Discharge current
V(SS) = 1.35 V,
Design for VIN(min) = 4.5 V
3
mA
VGATE (CORE, IO, CLK) (PWRGD of three outputs with open drain output)
V(VGATE)
Undervoltage trip point
(VSENSE_CORE, VSENSE_IO, and
VSENSE_CLK)
VIN and V(drv) above UVLO thresholds
85
90
95
%Vref
VO(VGATE)
Output saturation voltage
IO = 2.5 mA
0.5
0.75
V
Enable EXT (SHUTDOWN of IC with open-drain output. Use pullup resistor to 5 V or 3.3 V)
VO(EN_EXT)
Output saturation voltage
IO = 2.5 mA
0.5
0.75
V
DROOP Compensation
Maximum output CMR
200
mV
tPHL(HC)
Propagation delay
15-mV to 150-mV swing,
0.925 V
≤ Vref ≤ 2 V, VCC = 5 V
(see Note 2)
200
500
ns
Current Sensing
G(CS)
Gain
See Note 2
25
V/V
VO(SO)
Output systematic offset
V(IS+) V(IS) = 1 mV,
1 mV input (see Note 2)
26
mV
VO(RO)
Output random offset
See Note 2
±15
mV
VOM
Maximum output voltage swing
1.75
V
t(VDSRESP)
Response time (measured from 50% of
(V(IS+) V(IS)) to 50% of V(IOUT)
V(IS) = 0.925 V – 2 V, V(IS+) is pulsed
from V(IS) to (V(IS) + 50 mV),
VCC = 5 V (see Note 2)
500
ns
PSM/LATCH Power Saving Mode (PSM Comparator)
V(startINH)
PSM comparator start threshold
2.1
2.3
V
V(stopINH)
PSM comparator stop threshold
1.8
V
Vhys(INH)
Hysteresis
100
mV
V(PSMth1)
90
120
150
V(PSMth2)
OCP voltage trip points for PSM
mV
V(PSMth3)
OCP voltage trip points for PSM
OCP
↑
30
60
90
mV
V(PSMth4)
OCP
↑
30
60
90
Vhys(PSM)
Hysteresis
10
mV
R(tPSM1)
PH to CT, PSM = GND,
V(OCP) = 150 mV (see Note 3)
8
10
12
k
R(tPSM2)
PSM ramp timing resistance
PH to CT, PSM = GND,
V(OCP) = 85 mV (see Note 3)
16
20
24
k
R(tPSM3)
PH to CT, PSM = GND,
V(OCP) = 15 mV (see Note 3)
1
M
NOTES:
2. Ensured by design, not production tested.
3. The VBIAS voltage is required to be a quiet bias supply for the TPS5300 control logic. External noisy loads should use VCC instead
of the VBIAS voltage.
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