SIP21106 Datasheet, PDF (1/13 Pages) Vishay Siliconix – 150-mA Low Noise, Low Dropout Regulator

New Product
SiP21106/7/8
Vishay Siliconix
150-mA Low Noise, Low Dropout Regulator
APPLICATIONS
• Cellular Phones, Wireless Handsets
• PDAs
• MP3 Players
• Digital Cameras
• Pagers
• Wireless Modem
• Noise-Sensitive Electronic Systems
DESCRIPTION
The SiP21106 BiCMOS 150 mA low noise LDO voltage reg-
ulators are the perfect choice for low battery operated low
powered applications. An Ultra low ground current and low
dropout voltage of 135 mV at 150 mA load helps to extend
battery life for portable electronics. Systems requiring a quiet
voltage source, such as RF applications, will benefit from the
SiP21106 low output noise.
The SiP21107 do not require a noise bypass cpacitor and
provides an error flag pin (POK or Power OK). POK output
requires an external pull-up resistor and goes low when the
supply has not come up to voltage.
The SiP21108 output is adjusted with an external resistor
network.
The SiP21106/7/8 regulators allow stable operation with very
small ceramic output capacitors, reducing board space and
component cost. They are designed to maintain regulation
while delivering 330 mA peak current upon turn-on. During
start-up, an active pull-down circuit improves the output tran-
sient response and regulation. In shutdown mode, the output
automatically discharges to ground through a 100 Ω NMOS.
The SiP21106/7/8 are available in TSOT23-5L and a super
thin lead (Pb)-free TSC75-6L packages for operation over
the industrial operation range (- 40 °C to 85 °C).
FEATURES
• TSC75-6L Package (1.6 x 1.6 x 0.6 mm), and
TSOT23-5L Package Options
• 1.0 % Output Voltage Accuracy at 25 °C
• Low Dropout Voltage: 135 mV at 150 mA
RoHS
COMPLIANT
• SiP21106 Low Noise: 60 µV_(rms)
(10 Hz to 100 kHz Bandwidth)
With 10 nF Over Full Load Range
• 35 µA (typical) Ground Current at 1 mA Load
• 1 µA Maximum Shutdown Current at 85 °C
• Output Auto Discharge at Shutdown Mode
• Built-in Short Circuit (330 mA typical) and Thermal Pro-
tection (160 °C typical)
• SiP21108 Adjustable Output Voltage
• SiP21107 POK Error Flag
• - 40 °C to + 125 °C Junction Temperature Range for
Operation
• Uses Low ESR Ceramic Capacitors
• Fixed Voltage Output 1.3 V to 5 V in 50 mV Steps
TYPICAL APPLICATION CIRCUIT
V_IN
CIN = 1 µF
EN
1 V_IN
VOUT 5
2 GND
SiP21106
3 EN
BP 4
TSOT23-5L Package
V_OUT
EN
COUT = 1 µF
CBypass = 10 nF
V_IN
CIN = 1 µF
1 EN
BP 6
2 GND
NC 5
SiP21106
3 V_IN
VOUT 4
TSC75-6L Package
CBypass = 10 nF
V_OUT
COUT = 1 µF
Document Number: 74442
S-70067–Rev. B, 22-Jan-07
www.vishay.com
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