Datasheet


      
SLVS141A − JULY 1996 − REVISED JANUARY 1997
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
electrical characteristics over recommended operating free-air temperature range, V
CC
= 5 V,
I
O
= 0, EN = 5 V, typical values are at T
A =
25°C (unless otherwise noted) (refer to Figure 15)
PARAMETER TEST CONDITION MIN TYP MAX UNIT
Supply current 1.9 mA
Standby current EN = 0.4 V 1 10 µA
High-level input threshold voltage, EN 2 V
Low-level input threshold voltage, EN 0.4 V
Input current, EN −1 1 µA
Compensation pin impedance 7.5 kΩ
Oscillator frequency 160 kHz
Reference voltage I
O(ref) ≤ 125 µA
1.22 V
Reference drift 50 ppm/°C
Undervoltage lockout 3.7 V
On resistance, OUT 0.4 Ω
Leakage current, OUT 20 nA
performance characteristics over recommended operating free-air temperature range, typical
values at T
A
= 25°C (unless otherwise noted) (refer to Figure 15)
PARAMETER TEST CONDITION MIN TYP MAX UNIT
Output voltage V
CC
= 4.5 V to 6.2 V
I
O
= 0 mA to 200 mA
−4.75 −5 −5.25 V
Load current V
CC
= 4.5 V to 6.2 V 200 270 mA
Line regulation V
CC
= 4.5 V to 6.2 V 0.2%
Load regulation I
O
= 25 mA to 200 mA 0.2%
Efficiency I
O
=100 mA 78%