參數(shù)資料
型號: TPS5633CPWPR
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Voltage-Mode SMPS Controller
中文描述: 電壓模式開關(guān)電源控制器
文件頁數(shù): 8/34頁
文件大小: 811K
代理商: TPS5633CPWPR
TPS56302
DUAL-OUTPUT LOW-INPUT-VOLTAGE
DSP POWER SUPPLY CONTROLLER WITH SEQUENCING
SLVS289A
MARCH 2000
REVISED OCTOBER 2000
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics T
J
= 0
°
to 125
°
C, V
CC
= 2.8 V to 5.5 V (unless otherwise noted) (continued)
slow-start
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Charge current
V(S/S) = 0.5 V,
Resistance from VREFB pin to ANAGND = 20 k
VREFB = 1.3 V,
Ichg = (IVREFB/5)
V(S/S) = 1.3 V
10.4
13
15.6
μ
A
Discharge current
3
mA
Comparator input offset voltage
10
mV
Comparator input bias current
See Note 2
10
100
nA
Hysteresis accuracy
7.5
7.5
mV
Comparator propagation delay
NOTE 2. Ensured by design, not production tested.
Overdrive = 10 mV,
See Note 2
560
1000
ns
V
CC
UVLO
PARAMETER
CONDITIONS
MIN
TYP
2.72
MAX
2.80
UNITS
Start threshold
(see Note 2)
TJ =
40
°
C,
(see Note 2)
V
See Note 2
2.71
Stop threshold
NOTE 2. Ensured by design, not production tested.
2.48
V
power good
PARAMETER
CONDITIONS
MIN
90
TYP
93
MAX
UNITS
Undervoltage trip point ripple regulator
(VSENSE
RR)
VIN and VDRV above UVLO thresholds
TJ =
40
°
C,
VIN and VDRV above UVLO thresholds
TJ =
40
°
C,
IO=5 mA
VPGD = 4.5 V
VREF = 1.3 V, 1.5 V, or 1.8 V
VREF = 2.5 V, or 3.3 V
95
%VREF
% VREF
See Note 2
93
Undervoltage trip point LDO
(VSENSE
LDO)
90
93
95
%VREF
% VREF
See Note 2
93
Output saturation voltage
0.5
0.75
V
μ
A
mV
Leakage current
1
Hysteresis
50
75
100
125
mV
Comparator high-low transition time
(propagation delay only)
See Note 2
1
μ
s
Comparator low-high transition time
(propagation delay + deglitch)
NOTE 2. Ensured by design, not production tested.
See Note 2
0.2
1
2
ms
droop compensation
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Initial accuracy
VDROOP = 50 mV
46
54
mV
overcurrent protection (RR)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OCP trip point
118
130
142
mV
Input bias current
300
nA
μ
s
Comparator propagation delay time
Voverdrive = 30 mV,
See Note 2
1
Deglitch time (includes comparator
propagation delay time)
NOTE 2. Ensured by design, not production tested.
Voverdrive = 30 mV,
See Note 2
2.25
11
μ
s
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