S1F78B20 Epson Electronics America, Inc., S1F78B20 Datasheet - Page 5

• Manufacturer Part Number: S1F78B20
• Description: Positive Voltage Cmos Regulator
• Manufacturer: Epson Electronics America, Inc.

1. DESCRIPTION
The S1F78B20 is a positive voltage CMOS regulator IC. This IC provides the low output noise, high-speed load
transient response, high-load stability, and high accuracy mechanisms, ensuring 50µA, which is lower than the
conventional consumption current.
The output voltage is fixed in the IC, and its allowable range is between 1.8 to 4.0V based on the laser trimming
technique.
This IC consists of the reference voltage supply, output voltage setting resistor, overcurrent protection circuit,
output voltage drop correction circuit, phase compensation circuit, chip enable circuit, pulse response circuit,
and other components.
It is ideal for the power supply of the high-frequency circuit, realizing low output noises with low operating
current.
2. FEATURES
• Low consumption current:
• Output noise voltage:
• Output voltage:
• Output current:
• Output voltage accuracy:
• Input-output potential difference:
• Ripple rejection:
• Overcurrent detection current:
• Short-circuit holding current:
• Range of capacitor:
3. PACKAGE
VSON-6pin
SOT23-5pin
4. APPLICATION
• Mobile communication equipment (Mobile-phone, cordless phone, radio communication equipment)
• Camera, video equipment
• Mobile AV equipment
• Portable game device
• Home appliance
• Battery equipment
S1F78B20 Technical Manual (Rev.1.1)
In standby: [Max.] 0.1µA
Vripple=0.2Vp-pAC)
At operating: [Typ.] 50µA (V
30µVrms (V
1.8 to 4.0V DC (Can be set in 0.1V steps.)
150mA (V
±2.0% (Iout=50mA)
[Typ.] 0.30V (V
[Typ.] 80 dB (V
[Typ.]350mA
[Typ.]30mA
Cin=1.0 to 10µF, Cout=1.0 to 10µF, ESR=1m to 6.8Ω
DD
OUT
EPSON
=V
OUT
OUT
(S) = 3.0V, Cout=1.0µF, 10 to 100kHz)
OUT
(S)=3.0V, V
(S) = 3.0V, I
(S)+1.0V)
OUT
DD
OUT
(S)=3.0V, at no-load),
=V
=150 mA)
OUT
(S)+1.0V, f=1kHz,
1. DESCRIPTION
1