TDA3664 ,Very low dropout voltage/quiescent current 5 V voltage regulatorINTEGRATED CIRCUITSDATA SHEETTDA3664Very low dropout voltage/quiescentcurrent 5 V voltage regulator ..
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TDA3664
Very low dropout voltage/quiescent current 5 V voltage regulator
General descriptionThe TDA3664isa fixed voltage regulator with very low dropout voltage/quiescent current,
which operates over a wide supply voltage range.
The regulator is available as:
TDA3664: SO4 package
TDA3664AT: SO8 package
TDA3664TT: TSSOP8 package
Features Fixed 5V , 100 mA regulator Supply voltage range up to 45V Very low quiescent current of 15 μA (typical value) Very low dropout voltage High ripple rejection Protections: Reverse polarity safe (down to −25 V without high reverse current) Negative transient of 50 V (RS =10 Ω; t< 100 ms) Able to withstand voltages up to 18 V at the output (supply line may be
short-circuited) ESD protection on all pins DC short-circuit safe to ground and VP of the regulator output Temperature protection (Tj> 150 °C)
TDA3664
Very low dropout voltage/quiescent current 5 V voltage
regulator
Rev. 07 — 25 June 2007 Product data sheet
NXP Semiconductors TDA3664
Very low dropout voltage/quiescent current 5 V voltage regulator Quick reference data[1] The regulator output will follow VPifVP
[2] TDA3664TT: IREG≤15 mA at Tamb≤ 125 °C; IREG≤30 mA at Tamb≤85°C. Ordering information
Table 1. Quick reference data
VP = 14.4 V; Tamb = 25 °C; measured with test circuit of Figure 15; unless otherwise specified.
Supply voltage supply voltage regulator on [1]3 14.4 45 V quiescent current VP= 4.5V;
IREG =0mA
-10 - μA= 14.4V;
IREG =0mA
-15 30 μA≤VP≤22V
; IREG =10mA 0.2 0.5 mA≤VP≤22V
; IREG =50mA 1.4 2.5 mA
Regulator output: pin REG
VREG output voltage 8V≤VP≤22V
; IREG= 0.5 mA
4.8 5.0 5.2 V≤VP≤45V;
IREG= 0.5 mA
4.75 5.0 5.25 V
0.5 mA≤ IREG≤
100 mA
[2] 4.75 5.0 5.25 V≤VP≤45V 4.75 5.0 5.25 V
VREG(drop) dropout voltage VP= 4.5V;
IREG =50mA;
Tamb≤85°C 0.18 0.3 V
Table 2: Ordering information
TDA3664AT SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1
TDA3664 SO4 plastic small outline package; 4 leads; body width 3.5 mm SOT223-1
TDA3664TT TSSOP8 plastic thin shrink small outline package; 8 leads; body width 3 mm SOT505-1
NXP Semiconductors TDA3664
Very low dropout voltage/quiescent current 5 V voltage regulator Block diagram Pinning information
6.1 Pinning
6.2 Pin description
Table 3: Pin description 1 8 8 supply voltage
GND 2 and4 3 3 ground
REG 3 1 1 regulator output
n.c. - 2, 4, 5, 6 and 7 2, 4, 5, 6 and 7 not connected
NXP Semiconductors TDA3664
Very low dropout voltage/quiescent current 5 V voltage regulator Functional description
The TDA3664isa fixed5V regulator which can deliver output currentsupto 100 mA. The
regulator is available in SO8, TSSOP8 and SO4 packages. The regulator is intended for
portable, mains and telephone applications. To increase the lifetime of batteries, specially built-in clamp circuit keeps the quiescent currentof this regulator very low, also
in dropout and full load conditions.
The regulator remains operational down to very low supply voltages, below which it
switches off.
A temperature protection is included, which switches the regulator output off at temperatures above 150 °C.
NXP Semiconductors TDA3664
Very low dropout voltage/quiescent current 5 V voltage regulator Limiting values Thermal characteristics
10. Characteristics
Table 4: Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). supply voltage - 45 V
VP(rp) reverse polarity supply
voltage
non-operating - −25 V
Ptot total power dissipation temperature of copper
area is25°C
TDA3664AT - 0.8 W
TDA3664TT - 0.56 W
TDA3664 - 5 W
Tstg storage temperature non-operating −55 +150 °C
Tamb ambient temperature operating −40 +125 °C junction temperature operating −40 +150 °C
Table 5: Thermal characteristics
Rth(j-a) thermal resistance from junction
to ambient
in free air; soldered in
SO8 155 K/W
TSSOP8 220 K/W
SO4 100 K/W
Rth(j-c) thermal resistance from junction
to case
in free air; SO4 only 25 K/W
Table 6: Characteristics= 14.4 V; Tamb =25 °C; measured with test circuit of Figure 15; unless otherwise specified.
Supply voltage supply voltage regulator operating [1]3 14.4 45 V quiescent current VP= 4.5 V; IREG =0mA - 10 - μA= 14.4 V; IREG=0 mA - 15 30 μA≤VP≤22 V; IREG=10 mA - 0.2 0.5 mA≤VP≤22 V; IREG=50 mA - 1.4 2.5 mA
NXP Semiconductors TDA3664
Very low dropout voltage/quiescent current 5 V voltage regulator
[1] The regulator output will follow VPifVP [2] TDA3664TT: IREG≤15 mA at Tamb≤ 125 °C; IREG≤30 mA at Tamb≤85°C.
11. Application information
11.1 Noise
The output noise is determined by the value of the output capacitor (see Table7).
[1] Measured at a bandwidth of 10Hzto 100 kHz
11.2 Stability
For stable operation: The maximum output capacitor ESR should not exceed22Ω (worst-case) andfor the
minimum ESR, see Table8. The ESR of the output capacitor is limited. See Table 8 for the minimum ESR values of the output capacitor, at Tamb given the
load and output capacitance.
Regulator output: pin REG
VREG output voltage 8V≤VP≤22 V; IREG= 0.5 mA 4.8 5.0 5.2 V≤VP≤45 V; IREG= 0.5 mA 4.75 5.0 5.25 V
0.5 mA≤ IREG ≤ 100 mA [2] 4.75 5.0 5.25 V≤VP≤45V 4.75 5.0 5.25 V
VREG(drop) dropout voltage VP= 4.5 V; IREG=50 mA; Tamb≤85°C - 0.18 0.3 V
VREG(stab) output voltagelong-term
stability
per 1000h - 20 - mV
ΔVREG(line) line regulation voltage 8V≤VP≤16 V; IREG= 0.5 mA - 1 10 mV≤VP≤22 V; IREG= 0.5 mA - 1 30 mV≤VP≤45 V; IREG= 0.5 mA - 1 50 mV
ΔVREG(load) load regulation voltage 0.5 mA≤ IREG≤50 mA - 10 50 mV
SVRR supply voltage ripple
rejection= 120 Hz; Vi(ripple)=1V (RMS);
IREG= 0.5 mA 60 - dB
IREG(crl) current limit VREG> 4.5V 0.17 0.25 A
ILO(rp) output leakage current
at reverse polarity= −15 V; VREG=≤ 0.3V - 1 500 μA
Table 6: Characteristics …continued= 14.4 V; Tamb =25 °C; measured with test circuit of Figure 15; unless otherwise specified.
Table 7: Noise figures
0.5 550 320 300 650 400 400
NXP Semiconductors TDA3664
Very low dropout voltage/quiescent current 5 V voltage regulator
Remark:In the eventof using different typesof capacitors,a minimum ESR needsto
be created by using an additional resistor that is placed in series with the output
capacitor, see Figure4. It is recommended not to use below 1 mA output current because of reduced phase
margin.
11.3 Application circuits
The maximum output current of the regulator equals:
When Tamb =21 °C, the maximum output current equals 140 mA at VP =14V.
The total thermal resistance of the TDA3664 (SOT223-1 package) can be decreased to
lower values when pin4 and bodyof the package are solderedto the printed-circuit board.
11.3.1 Application circuit with backup function
Sometimes, a backup function is needed to supply, for example, a microcontroller for a
short period of time when the supply voltage spikes to 0 V (or even−1 V).
This function can easilybe built with the TDA3664by usinga large output capacitor. When
the supply voltage is 0 V (or−1 V), only a small current will flow into pin REG from this
large output capacitor (a few μA).
The application circuit is given in Figure4.
Table 8: Minimum ESR values required0Ω > 1.5Ω > 2.5Ω >0Ω1Ω > 0.5Ω >1Ω >0Ω >0Ω > 0.5Ω >4Ω >0Ω
100 >0Ω > 0.5Ω >4Ω >0Ω REG max()
150 T amb–thja–() VP V REG– ()× ---------------------------------------------------------- 150 T amb–
100 VP 5–()× ------------------------------------ mA()==
NXP Semiconductors TDA3664
Very low dropout voltage/quiescent current 5 V voltage regulator
11.4 Additional application information
This section gives typical curves for various parameters measured on the TDA3664AT.
Standard test conditions are: VP= 14.4 V; Tamb =25C.
