FAN4860 データシートの表示（PDF） - ON Semiconductor

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FAN4860

3 MHz, Synchronous TinyBoost™ Regulator

ON Semiconductor 

Electrical Specifications

Minimum and maximum values are at VIN=VEN=2.3 V to 4.5 V (2.5 to 3.2 VIN for 3.3 VOUT option), TA=-40°C to +85°C;

circuit of Figure 1, unless otherwise noted. Typical values are at TA=25°C, VIN=VEN=3.6 V for VOUT=5.0 V / 5.4 V, and

VIN=VEN=2.7 V for VOUT=3.3 V.

Symbol

Parameter

Conditions

Min. Typ. Max. Units

5.4 VOUT

ISS

Soft-Start Input Peak

Current Limit(2)

5.0 VOUT

3.3 VOUT

VIN=3.6 V, VOUT < VIN

VIN=3.6 V, VOUT < VIN

VIN=2.7 V, VOUT < VIN

900

850

mA

700

tSS

Soft-Start Time(3)

5.4 VOUT

5.0 VOUT

VIN=3.6 V, IOUT=200 mA

VIN=3.6 V, IOUT=200 mA

270

400

100

300

s

3.3 VOUT

VIN=2.7 V, IOUT=200 mA

250

750

N-Channel Boost Switch

RDS(ON) P-Channel Sync Rectifier

VIN=3.6 V

VIN=3.6 V

300

400

mΩ

TTSD Thermal Shutdown

ILOAD=10 mA

150

°C

TTSD_HYS Thermal Shutdown Hysteresis

30

°C

Notes:

1. ILOAD from 0 to IOUT; also includes load transient response. VOUT measured from mid-point of output voltage ripple.

Effective capacitance of COUT > 1.5 F.

2. Guaranteed by design and characterization; not tested in production.

3. Elapsed time from rising EN until regulated VOUT.

© 2010 Fairchild Semiconductor Corporation

FAN4860 • Rev. 1.1.1

5

www.fairchildsemi.com

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