PDF《ADP5310》

5 % Internal Power-Good Rising Delay tPWRGD_RISE

16 Clock cycles Internal Power-Good Falling Delay tPWRGD_FALL

1 ?s Leakage Current for PWRGD Pin IPWRGD_LEAKAGE

10 40 nA Output Low Voltage for PWRGD Pin VPWRGD_LOW

50 100 mV IPWRGD =

100 ?A INTERNAL REGULATOR VREG Output Voltage VREG 3.6 3.9 4.2 V THERMAL SHUTDOWN Threshold TSHDN

135 °C Hysteresis THYS

15 °C Data Sheet ADP5310 Rev. A | Page

5 of

28 BUCK REGULATORS AND LOAD SWITCH SPECIFICATIONS VIN =

6 V, VREG = 3.9 V, TJ = ?40°C to +125°C for minimum and maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted. Table 2. Parameter Symbol Min Typ Max Unit Test Conditions/Comments CHANNEL

1 SYNC BUCK REGULATOR Supply Voltage Range VIN1 2.7 15.0 V PVIN1 pin Rating Output Current IOUT

800 mA FB1 Pin in PWM Mode Fixed Output Options VOUT1_FIX 1.2 5.0 V Factory trim,

3 bits (adjustable, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V) Fixed Output Accuracy VFB1_FIX ?1.5 +1.5 % Adjustable Output Voltage Range VOUT1_ADJ 0.8 PVIN1 V Adjustable voltage option Adjustable Feedback Voltage VFB1 0.800 V Adjustable voltage option Adjustable Feedback Voltage Accuracy VFB1_ADJ ?0.55 +0.55 % TJ = 25°C ?1.2 +1.0 % 0°C ≤ TJ ≤ 85°C ?1.5 +1.5 % ?40°C ≤ TJ ≤ +125°C FB1 Pin in PSM Mode Threshold Accuracy from Active Mode to Skip Mode VFB1_PSM ?1.5 +1.5 % Hysteresis of Threshold Accuracy from Active Mode to Skip Mode VFB1_PSM(PSM)

1 % Feedback Bias Current IFB1 0.1 ?A Adjustable voltage option SW1 Pin High-Side Power FET On Resistance RDS(ON)1H

472 690 m? Pin to pin measurement Low-Side Power FET On Resistance RDS(ON)1L

438 725 m? Pin to pin measurement Current-Limit Threshold ITH(ILIM1)

1000 1260

1450 mA Minimum On Time tMIN_ON1

38 70 ns Soft Start Time tSS1

350 ?s Factory trim,

1 bit (350 ?s,

2800 ?s) COUT Discharge Switch On Resistance RDIS1

287 ? ........