參數(shù)資料
型號(hào): LTC1262
廠商: Linear Technology Corporation
英文描述: Regulated 12V, 30mA output DC/DC converter.(12V穩(wěn)壓, 30mA輸出DC/DC變換器)
中文描述: 調(diào)節(jié)12V,30mA電流輸出DC / DC轉(zhuǎn)換器。(12V的穩(wěn)壓,30mA的輸出直流/直流變換器)
文件頁數(shù): 3/8頁
文件大?。?/td> 198K
代理商: LTC1262
3
LTC1262
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
PI FU
C1
(Pin 1):
C1 Negative Input. Connect a 0.22
μ
F capaci-
tor C1 between C1
+
and C1
.
C1
+
(Pin 2):
C1 Positive Input. Connect a 0.22
μ
F capaci-
tor C1 between C1
+
and C1
.
C2
(Pin 3):
C2 Negative Input. Connect a 0.22
μ
F capaci-
tor C2 between C2
+
and C2
.
C2
+
(Pin 4):
C2 Positive Input. Connect a 0.22
μ
F capaci-
tor C2 between C2
+
and C2
.
V
CC
(Pin 5):
Positive Supply Input Where 4.75V
V
CC
5.5V. Connect a 4.7
μ
F bypass capacitor C
IN
to ground.
U
V
OUT
(Pin 6):
12V Output. Connect a 4.7
μ
F bypass capaci-
tor C
OUT
to ground. When in the shutdown mode V
OUT
=
V
CC
.
GND (Pin 7):
Ground.
SHDN (Pin 8):
Logic Level Shutdown Pin. Application of a
logic low at SHDN pin will place the regulator in normal
operation. With no external connection, or with SHDN tied
to V
CC
, the device will be put into shutdown mode. Connect
to GND for normal operation. In shutdown mode the
charge pump is turned off and V
OUT
= V
CC
.
Efficiency vs Output Current
Shutdown Supply Current
vs Temperature
Output Voltage vs Output Current
12.2
Supply Current vs Supply Voltage
SUPPLY VOLTAGE (V)
4.5
480
S
μ
A
500
520
540
560
600
4.75
5.0
5.25
5.5
LTC1262 G03
5.75
6.0
580
T
A
= 70
°
C
I
OUT
= 0
T
A
= 25
°
C
T
A
= 0
°
C
OUTPUT CURRENT (mA)
0
55
E
60
65
70
75
85
10
20
30
40
LTC1262 G01
50
80
V
CC
= 4.75V
V
CC
= 5V
V
CC
= 5.5V
TEMPERATURE (
°
C)
–50
0
S
μ
A
0.6
1.2
1.8
2.4
3.6
–25
0
25
50
LTC1262 G02
75
100
3.0
V
CC
= 5V
OUTPUT CURRENT (mA)
0
5
10 15 20
25 30 35
40 45
50
O
12.0
11.8
11.6
11.4
11.2
11.0
10.8
10.6
10.4
10.2
1262 G04
V
CC
= 4.75V
V
CC
= 5.5V
V
CC
= 5V
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