SIP21106_09 Datasheet, PDF (1/19 Pages) Vishay Siliconix – 150-mA Low Noise, Low Dropout Regulator

SiP21106, SiP21107, SiP21108
Vishay Siliconix
150-mA Low Noise, Low Dropout Regulator
DESCRIPTION
The SiP21106 BiCMOS 150 mA low noise LDO voltage
regulators 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 capacitor 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, SiP21107, SiP21108 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 transient response and
regulation. In shutdown mode, the output automatically
discharges to ground through a 100 Ω NMOS.
The SiP21106, SiP21107, SiP21108 are available in
TSOT23-5L a super thin lead (Pb)-free TSC75-6L and
SC70-5L packages for operation over the industrial operation
range (- 40 °C to 85 °C).
TYPICAL APPLICATION CIRCUIT
FEATURES
• SC70-5L (2.1 mm x 2.1 mm x 0.95 mm)
• TSOT23-5L (3.05 mm x 2.85 mm x 1.0 mm)
• TSC75-6L package (1.6 mm x 1.6 mm
RoHS
x 0.55 mm), TSOT23-5L and SC70-5L
COMPLIANT
Package Options
• 1.0 % output voltage accuracy at 25 °C
• Low dropout voltage: 135 mV at 150 mA
• 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
protection (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 1.2 V to 5 V in 50 mV steps
• Compliant to RoHS Directive 2002/95/EC
APPLICATIONS
• Cellular phones, wireless handsets
• PDAs
• MP3 players
• Digital cameras
• Pagers
• Wireless modem
• Noise-sensitive electronic systems
V_IN
CIN = 1 µF
EN
1 V_IN
VOUT 5
2 GND
SiP21106
3 EN
BP 4
TSOT23-5L/SC70-5LPackage
V_OUT
COUT = 1 µF
CBypass = 10 nF
EN
V_IN
CIN = 1 µF
EN
BP
GND
NC
SiP21106
VIN
VOUT
TSC75-6L Package
CBypass = 10 nF
V_OUT
COUT = 1 µF
Document Number: 74442
S09-1047-Rev. G, 08-Jun-09
www.vishay.com
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