TDA3661 Datasheet, PDF (1/16 Pages) NXP Semiconductors – Very low dropout voltage/quiescent current adjustable voltage regulator

TDA3661
Very low dropout voltage/quiescent current adjustable voltage
regulator
Rev. 05 — 28 June 2005
Product data sheet
1. General description
The TDA3661 is an adjustable voltage regulator with very low dropout voltage and
quiescent current, which operates over a wide supply voltage range.
2. Features
s Output adjustable from 1.5 V to V_P, 100 mA regulator
s Supply voltage range up to 45 V
s Very low quiescent current of 15 µA (typical value)
s Very low dropout voltage
s Protections:
x Reverse polarity safe (down to −25 V without high reverse current)
x Negative transient of 50 V (R_S = 10 Ω, t < 100 ms)
x Able to withstand voltages up to 18 V at the output (supply line may be
short-circuited)
x ESD protection on all pins
x DC short-circuit safe to ground and V_P of the regulator output
x Temperature protection (at T_j > 150 °C)
3. Quick reference data
Table 1: Quick reference data
T_amb = 25 °C; unless otherwise specified.
Symbol
Parameter
Conditions
Supply
V_P
supply voltage
regulator on
I_q
quiescent supply
V_P = 14.4 V; I_REG = 0 mA
current
Regulator; k = 4.01929 ^[1]
V_REG
output voltage
8 V ≤ V_P ≤ 22 V; I_REG = 0.5 mA
6 V ≤ V_P ≤ 45 V; I_REG = 0.5 mA
0.5 mA ≤ I_REG ≤ 100 mA
V_ref
reference voltage
V_P = 14.4 V
V_REG(drop)
dropout voltage
V_P = 4.5 V; I_REG = 50 mA;
T_amb ≤ 85 °C
[1] V_REG = V_ref × k
Min
Typ
Max
Unit
3
14.4
45
V
-
15
30
µA
4.8
5.0
5.2
V
4.75
5.0
5.25
V
4.75
5.0
5.25
V
1.181 1.244 1.306 V
-
0.18
0.3
V