参数资料
型号: TPS62321YZDT
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 0.89 A SWITCHING REGULATOR, 3350 kHz SWITCHING FREQ-MAX, BGA8
封装: GREEN, DSBGA-8
文件页数: 32/37页
文件大小: 1401K
代理商: TPS62321YZDT
www.ti.com
DISSIPATION RATINGS
(1)
ELECTRICAL CHARACTERISTICS
SLVS528E – JULY 2004 – REVISED NOVEMBER 2007
POWER RATING
DERATING FACTOR
PACKAGE
RθJA
(2)
FOR TA≤ 25°C
ABOVE TA = 25°C
DRC
49
°C/W
2050 mW
21 mW/
°C
YZD
250
°C/W
400 mW
4 mW/
°C
YED
250
°C/W
400 mW
4 mW/
°C
YZ
250
°C/W
400 mW
4 mW/
°C
(1)
Maximum power dissipation is a function of TJ(max), θJA and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = [TJ(max)-TA] / θJA
(2)
This thermal data is measured with low-K board (1 layer board according to JESD51-7 JEDEC standard).
VI = 3.6 V, VO = 1.6 V, EN = VI, MODE/SYNC = GND, L = 1 H, CO = 10 F, TA = -40°C to 85°C, typical values are at
TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
VI
Input voltage range
2.7
6
V
TPS6230x
IO = 0 mA. PFM mode enabled, device not switching
86
105
A
TPS6232x
Operating
TPS6231x
IO = 0 mA. PFM mode enabled, device not switching
86
120
A
IQ
quiescent
current
TPS6230x
IO = 0 mA. Switching with no load
TPS6231x
3.6
mA
(MODE/SYNC = VIN)
TPS6232x
I(SD)
Shutdown current
EN = GND
0.1
1
A
TPS6230x
2.40
2.55
V
Undervoltage
TPS6232x
UVLO
lockout threshold
TPS6231x
2.00
2.20
V
ENABLE, MODE/SYNC
V(EN)
EN high-level input voltage
1.2
V
V(MODE/SYNC)
MODE/SYNC high-level input voltage
1.3
V
V(EN),
EN, MODE/SYNC low-level input
0.4
V
V(MODE/SYNC)
voltage
I(EN),
EN, MODE/SYNC input leakage
EN, MODE/SYNC = GND or VIN
0.01
1
A
I(MODE/SYNC)
current
POWER SWITCH
TPS6230x
VI = V(GS) = 3.6 V
420
750
m
P-channel MOSFET
rDS(on)
TPS6231x
on resistance
VI = V(GS) = 2.8 V
520
1000
m
TPS6232x
Ilkg
P-channel leakage current, PMOS
V(DS) = 6 V
1
A
VI = V(GS) = 3.6 V
330
750
m
rDS(on)
N-channel MOSFET on resistance
VI = V(GS) = 2.8 V
400
1000
m
Discharge resistor for power-down
R(DIS)
30
50
sequence (TPS6232x only)
Ilkg
N-channel leakage current, NMOS
V(DS) = 6 V
1
A
P-MOS current limit
2.7 V
≤ VI ≤ 6 V
670
780
890
mA
N-MOS current limit - sourcing
2.7 V
≤ VI ≤ 6 V
550
720
890
mA
N-MOS current limit - sinking
2.7 V
≤ VI ≤ 6 V
–460
–600
–740
mA
Input current limit under short-circuit
VO = 0 V
390
mA
conditions
Thermal shutdown
150
°C
Thermal shutdown hysteresis
20
°C
4
Copyright 2004–2007, Texas Instruments Incorporated
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