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SPX2969
150mA Low Dropout Voltage Regulator
FEATURES ■ 5V Fixed Output ■ 150mA current capability ■ 250mV Dropout ■ Programmable Reset Threshold ■ 250µA Quiescent Current ■ Over Temperature Protection ■ Reverse Polarity Protection ■ Integrated Pull Up Resistor on Logic Outputs ■ -40° to 125°C Operating Range ■ Available in 8 Pin and 14 Pin nSOIC or 20 Pin wSOIC packages.
I 1 SI 2 RADJ 3 D 4
8 Q
SPX2969 8 PIN NSOIC
7 SO 6 RO 5 GND
Now Available in Lead Free Packaging
APPLICATIONS ■ Automotive ■ Industrial ■ Wireless Base Station
DESCRIPTION Sipex’s SPX2969 is a low dropout linear regulator with integrated PNP pass transistor. The part is designed for automotive environment, and thus can withstand up to 45V and 125°C temperature range. The output voltage is set at a fixed 5V, and the part is guaranteed to deliver at least 150mA. The SPX2969 provides multiple protection mechanisms, including overtemperature and over-current conditions. The part has a built-in reset circuit to monitor when the output voltage is below 4.65V. The reset voltage threshold can be programmed down to 3.5V using an external resistor voltage divider, while the reset timing can be programmed via an external capacitor. A built in comparator compares the signal of the pin SI, normally fed by a voltage divider from the input voltage, with the reference and gives an early warning on the pin SO. Both the sense output and the reset output delay signals contain integrated 20kOhm pull up resistors. The part is available in three package types: 8 Pin and 14 Pin nSOIC or 20 Pin wSOIC packages. TYPICAL APPLICATION CIRCUIT
12V + 1000µF RS1
RO I Q
5V RADJ1 + 22µF
SPX2969
RADJ SO SI GND D
0.1µF RS2
RADJ2
RESET OUT
Date: 8/4/04 SPX2969 150mA Low Dropout Voltage Regulator © Copyright 2004 Sipex Corporation
1
ABSOLUTE MAXIMUM RATINGS
Input Voltage ...................................................................... -40V to 45V Input Current ............................................................... internally limited Sense Input Voltage ........................................................... -40V to 45V Sense Input Current ......................................................... -1mA to 1mA Reset Threshold Voltage ....................................................... -0.3 to 7V Reset Threshold Current ................................................... -10 to 10mA Reset Delay Voltage ............................................................. -0.3 to 7V Reset Delay Current .................................................... internally limited Ground Current .................................................................. 50mA (min) Reset Output Voltage ............................................................ -0.3 to 7V Reset Output Current .................................................. internally limited Sense Output Voltage ........................................................... -0.3 to 7V Sense Output Current ................................................. internally limited Output Voltage ...................................................................... -0.3 to 7V Output Current ............................................................ internally limited Thermal Data Junction Ambient (8 Pin NSOIC) ............................................. 163°C/W Junction Ambient (20 Pin WSOIC) ............................................ 70°C/W Junction Ambient (14 Pin NSOIC) ............................................. 70°C/W Storage Temperature .................................................. -50°C to +150°C Junction Temperature.(Note 1)...........................................-50°C+150°C These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.
ELECTRICAL CHARACTERISTICS
VIN = 13.5V; -40°C < TJ < 125°C. The ♦ denotes the specifications which apply over the full operating temperature range, unless
otherwise specified.
PARAMETER Output Volatage Current Limit Current Consumption Iq= II- IQ Current Consumption Iq= II- IQ Current Consumption Iq= II- IQ Drop Voltage Load Regulation Line Regulation Reset Generator Threshold Voltage Reset Adjust Reset Pullup Saturation Voltage
SYMBOL VQ IQ Iq
MIN 4.90 150
TYP 5.00 250
MAX 5.10 500
UNITS V mA ♦
CONDITIONS 1mA < IQ 100mA 6V < VI < 16V
♦ -
-
240
300
µA
IQ<1 mA, Tj < 85° C
Iq
-
250
700
µA
♦ IQ =10mA
Iq
-
2
8
mA
♦ IQ =50mA ♦ IQ =100mA (Q - I) when output drops below 2% (see note 2)
VDR VQ VQ
-
0.25 2 1
0.5 20 10
V mV mV
♦ IQ =5mA to 100mA ♦ VI =6V to 26V IQ = 1 mA
VRT VRADJ, TH VRO, SAT
4.50 1.26 10 -
4.65 1.35 20 0.1
4.80 1.44 40 0.4
V V K V
♦ ♦ VQ =3.5V (see note 3)
♦ ♦ Rintern
Note 1: Specifications in the -40°C to 150°C range are guaranteed by design, not production tested. Note 2:.