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參數資料
| 型號： | 935269489115 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING CONTROLLER, 115 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | 1.50 MM, PLASTIC, MO-178, SOT-25, SOT-23, SOP-5 |
| 文件頁數： | 15/21頁 |
| 文件大小： | 298K |
| 代理商： | 935269489115 |
Philips Semiconductors
Product data
SA57251-XX
CMOS switching regulator (PWM controlled)
2001 Aug 01
3
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
TEMPERATURE
TYPE NUMBER
NAME
DESCRIPTION
RANGE
SA57251-XXGW
SOT23-5, SOT25, SO5
plastic small outline package; 5 leads (see dimensional drawing)
–40 to +85
°C
NOTE:
The device has seven voltage output options, indicated by the XX
on the Type Number.
XX
VOLTAGE (Typical)
20
2.0 V
25
2.5 V
28
2.8 V
30
3.0 V
33
3.3 V
36
3.6 V
50
5.0 V
Part number marking
Each device is marked with a four letter code. The first three letters
designate the product. The fourth letter, represented by ‘x’, is a date
tracking code.
Part number
Marking
SA57251-20GW
A E C x
SA57251-25GW
A E D x
SA57251-28GW
A E E x
SA57251-30GW
A E F x
SA57251-33GW
A E G x
SA57251-36GW
A E H x
SA57251-50GW
A E J x
PIN CONFIGURATION
SL01488
1
2
34
5
DRIVE
GND
N/C
FB
ON/OFF
SA57251-XX
Figure 2. Pin configuration.
PIN DESCRIPTION
PIN
SYMBOL
DESCRIPTION
1
ON/OFF
ON/OFF control pin. Connect to VIN if not used.
2
FB
Feedback from the output voltage to the PWM
control.
3
NC
No connection.
4
GND
Ground.
5
DRIVE
Drive current for external power transistor.
MAXIMUM RATINGS
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
VFB
FB pin voltage
–0.3
11
V
VON/OFF
ON/OFF pin voltage
–0.3
11
V
VDD(max)
Power supply voltage
–0.3
11
V
Toper
Operating temperature
–40
+85
°C
Tstg
Storage temperature
–40
+125
°C
PD
Power dissipation
–
150
mW
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