參數(shù)資料
型號: SA57250-33GW-G
廠商: NXP SEMICONDUCTORS
元件分類: 穩(wěn)壓器
英文描述: 0.3 A SWITCHING REGULATOR, 57.5 kHz SWITCHING FREQ-MAX, PDSO5
封裝: 1.50 MM, PLASTIC, MO-178, SOT-25, SOT-23, SOP-5
文件頁數(shù): 15/18頁
文件大?。?/td> 276K
代理商: SA57250-33GW-G
Philips Semiconductors
Product data
SA57250-XX
CMOS switching regulator (PWM controlled)
2003 Nov 12
6
VOUT
OUTPUT VOLTAGE
(20 mV/div)
VSW
SW VOLTAGE
(1 V/div)
t (10
s/div)
SL01472
VIN = 1.8 V
Figure 9. Ripple voltage at IOUT = 200 A.
VOUT
OUTPUT VOLTAGE
(20 mV/div)
VSW
SW VOLTAGE
(1 V/div)
t (10
s/div)
SL01473
VIN = 1.8 V
Figure 10. Ripple voltage at IOUT = 10 mA.
VOUT
OUTPUT VOLTAGE
(20 mV/div)
VSW
SW VOLTAGE
(1 V/div)
t (10
s/div)
SL01474
VIN = 1.8 V
Figure 11. Ripple voltage at IOUT = 10 mA.
VIN
INPUT VOLTAGE
(1 V/div)
VOUT
OUTPUT VOLTAGE
(1 V/div)
t (1 ms/div)
SL01475
IOUT = 60 mA
Figure 12. Start-up characteristic VIN: 0 V → 1.8 V.
VON/OFF
INPUT VOLTAGE
(1 V/div)
VOUT
OUTPUT VOLTAGE
(1 V/div)
t (1 ms/div)
SL01476
IOUT = 60 mA; VIN = 1.8 V
Figure 13. Start-up characteristic VON/OFF: 0 V → 3.0 V.
IOUT
LOAD CURRENT
(20 mA/div)
VOUT
OUTPUT VOLTAGE
(50 mV/div)
t (200
s/div)
SL01477
IOUT: 100 A → 50 mA; VIN = 1.8 V
Figure 14. Output load regulation, increasing current.
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