參數(shù)資料
型號(hào)： PTN78060AAZ-T
廠商： Texas Instruments, Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： 15-W, WIDE-INPUT ADJUSTABLE POSITIVE-TO-NEGATIVE VOLTAGE REGULATOR MODULE
中文描述： 15鎢，寬輸入可調(diào)節(jié)正到負(fù)電壓穩(wěn)壓器模塊
文件頁數(shù)： 3/18頁
文件大?。?/td> 1413K
代理商： PTN78060AAZ-T
www.ti.com
ELECTRICAL CHARACTERISTICS
operating at 25°C free-air temperature, V
I
= 20 V, V
O
= –5 V, I
O
= I
O
(max), C
1
= 100 μF, C
2
= 3
×
4.7 μF, and C
3
= 100 μF
(unless otherwise noted)
PTN78060A
SLTS245A–APRIL 2005–REVISED MAY 2005
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
O
= –15 V
V
O
= –12 V
V
O
= –5 V
V
O
= –3.3 V
V
O
= –15 V
V
O
= –12 V
V
O
= –5 V
V
O
= –3.3 V
0.1
1
(1)
0.1
1.25
(1)
I
O
Output current
T
A
= 85°C, natural convection airflow
A
0.1
3
(1)
0.1
3
(1)
9
17
(2)
9
20
(2)
V
I
Input voltage range
Over I
O
range
V
9
27
(2)
9
28.7
(2)
Set-point voltage toler-
ance
T
A
= 25
°
C
±2%
(3)
Temperature variation
–40°C to +85°C
±0.5%
V
O
Line regulation
Over V
I
range
Over I
O
range
Includes set point, line, load
–40 < T
A
< 85°C
±10
mV
Load regulation
±10
mV
Total output voltage vari-
ation
±3%
(3)
Output voltage adjust
range
9 V
≤
V
I
≤
(32 - |V
O
|) V
–15
–3
V
O
V
R
SET
= 100
, I
O
= 1 A, V
O
= –15 V
R
SET
= 2 k
, I
O
= 1.25 A, V
O
= –12 V
R
SET
= 28.7 k
, I
O
= 3 A, V
O
= –5 V
R
SET
= 221 k
, I
O
= 3 A, V
O
= –3.3 V
88%
87%
η
Efficiency
82%
77%
Output voltage ripple
20-MHz bandwidth
1% V
O
V
(PP)
A
I
O (LIM)
Current limit threshold
V
O
= –50 mV
5.5
Recovery time
200
μs
1-A/μs load step from 50% to 100%
I
O
max
Transient response
V
O
over/undershoot
2
%V
O
kHz
F
S
UVLO
Switching frequency
Over V
I
and I
O
ranges
V
I
increasing
Ceramic
440
550
660
Undervoltage lockout
5.5
V
14.1
(4)
External input capaci-
tance
C
I
μF
Nonceramic
100
(4)
Ceramic
200
μF
External output capaci-
tance
C
O
Nonceramic
100
(5)
1000
Equivalent series resistance (nonceramic)
14
(6)
m
Per Telcordia SR-332, 50% stress,
T
A
= 40°C, ground benign
MTBF
Calculated reliability
8.9
10
6
Hr
(1)
(2)
(3)
The maximum output current is 3 A or a maximum output power of 15 W, whichever is less.
The maximum input voltage is limited and defined to be (32 - |V
|).
The set-point voltage tolerance is affected by the tolerance and stability of R
SET
. The stated limit is unconditionally met if R
SET
has a
tolerance of 1% with 100 ppm/°C or better temperature stability.
A 100-μF electrolytic capacitor and three 4.7-μF ceramic capacitors are required across the input (V
I
and GND) for proper operation.
Locate the ceramic capacitors close to the module.
100 μF of output capacitance is required for proper operation. See the application information for further guidance.
This is the typical ESR for all the electrolytic (nonceramic) capacitance. Use 17 m
as the minimum when using max-ESR values to
calculate.
(4)
(5)
(6)
3
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